Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

stack/pico_socket.c@95:f4ca916a26fe, 2013-10-15 (annotated)

Committer:
tass
Date:
Tue Oct 15 11:43:13 2013 +0000
Revision:
95:f4ca916a26fe
Parent:
92:f9b6cc6c54c2
Child:
100:2a37cbd6814d
Issue #36: SYN flood protection implementation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tass 68:0847e35d08a6 1 /*********************************************************************
tass 68:0847e35d08a6 2 PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
tass 68:0847e35d08a6 3 See LICENSE and COPYING for usage.
tass 68:0847e35d08a6 4
tass 68:0847e35d08a6 5
tass 68:0847e35d08a6 6 Authors: Daniele Lacamera
tass 68:0847e35d08a6 7 *********************************************************************/
tass 68:0847e35d08a6 8
tass 68:0847e35d08a6 9
tass 68:0847e35d08a6 10 #include "pico_config.h"
tass 68:0847e35d08a6 11 #include "pico_queue.h"
tass 68:0847e35d08a6 12 #include "pico_socket.h"
tass 68:0847e35d08a6 13 #include "pico_ipv4.h"
tass 68:0847e35d08a6 14 #include "pico_ipv6.h"
tass 68:0847e35d08a6 15 #include "pico_udp.h"
tass 68:0847e35d08a6 16 #include "pico_tcp.h"
tass 68:0847e35d08a6 17 #include "pico_stack.h"
tass 68:0847e35d08a6 18 #include "pico_icmp4.h"
tass 68:0847e35d08a6 19 #include "pico_nat.h"
tass 68:0847e35d08a6 20 #include "pico_tree.h"
tass 68:0847e35d08a6 21 #include "pico_device.h"
tass 68:0847e35d08a6 22
tass 68:0847e35d08a6 23 #if defined (PICO_SUPPORT_IPV4) || defined (PICO_SUPPORT_IPV6)
tass 68:0847e35d08a6 24 #if defined (PICO_SUPPORT_TCP) || defined (PICO_SUPPORT_UDP)
tass 68:0847e35d08a6 25
tass 68:0847e35d08a6 26
tass 68:0847e35d08a6 27 #define PROTO(s) ((s)->proto->proto_number)
tass 68:0847e35d08a6 28 #define PICO_SOCKET4_MTU 1480 /* Ethernet MTU(1500) - IP header size(20) */
tass 68:0847e35d08a6 29 #define PICO_SOCKET6_MTU 1460 /* Ethernet MTU(1500) - IP header size(40) */
tass 68:0847e35d08a6 30 #define TCP_STATE(s) (s->state & PICO_SOCKET_STATE_TCP)
tass 68:0847e35d08a6 31
tass 68:0847e35d08a6 32 #ifdef PICO_SUPPORT_MUTEX
tass 68:0847e35d08a6 33 static void * Mutex = NULL;
tass 68:0847e35d08a6 34 #define LOCK(x) {\
tass 68:0847e35d08a6 35 if (x == NULL) \
tass 68:0847e35d08a6 36 x = pico_mutex_init(); \
tass 68:0847e35d08a6 37 pico_mutex_lock(x); \
tass 68:0847e35d08a6 38 }
tass 68:0847e35d08a6 39 #define UNLOCK(x) pico_mutex_unlock(x);
tass 68:0847e35d08a6 40
tass 68:0847e35d08a6 41 #else
tass 68:0847e35d08a6 42 #define LOCK(x) do{}while(0)
tass 68:0847e35d08a6 43 #define UNLOCK(x) do{}while(0)
tass 68:0847e35d08a6 44 #endif
tass 68:0847e35d08a6 45
tass 68:0847e35d08a6 46
tass 68:0847e35d08a6 47 #define PROTO(s) ((s)->proto->proto_number)
tass 68:0847e35d08a6 48
tass 68:0847e35d08a6 49 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 50 # define IS_NAGLE_ENABLED(s) (!(!(!(s->opt_flags & (1 << PICO_SOCKET_OPT_TCPNODELAY)))))
tass 68:0847e35d08a6 51 #endif
tass 68:0847e35d08a6 52
tass 68:0847e35d08a6 53 #define PICO_SOCKET_MTU 1480 /* Ethernet MTU(1500) - IP header size(20) */
tass 68:0847e35d08a6 54
tass 68:0847e35d08a6 55 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 56 # define IS_SOCK_IPV4(s) ((s->net == &pico_proto_ipv4))
tass 68:0847e35d08a6 57 #else
tass 68:0847e35d08a6 58 # define IS_SOCK_IPV4(s) (0)
tass 68:0847e35d08a6 59 #endif
tass 68:0847e35d08a6 60
tass 68:0847e35d08a6 61 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 62 # define IS_SOCK_IPV6(s) ((s->net == &pico_proto_ipv6))
tass 68:0847e35d08a6 63 #else
tass 68:0847e35d08a6 64 # define IS_SOCK_IPV6(s) (0)
tass 68:0847e35d08a6 65 #endif
tass 68:0847e35d08a6 66
tass 68:0847e35d08a6 67 #ifdef PICO_SUPPORT_IPFRAG
tass 68:0847e35d08a6 68 # define frag_dbg(...) do{}while(0)
tass 68:0847e35d08a6 69 #endif
tass 68:0847e35d08a6 70
tass 68:0847e35d08a6 71 #ifdef PICO_SUPPORT_MCAST
tass 68:0847e35d08a6 72 # define so_mcast_dbg(...) do{}while(0) /* ip_mcast_dbg in pico_ipv4.c */
tass 68:0847e35d08a6 73 #endif
tass 68:0847e35d08a6 74
tass 68:0847e35d08a6 75 static struct pico_sockport *sp_udp = NULL ,*sp_tcp = NULL;
tass 68:0847e35d08a6 76
tass 70:cd218dd180e5 77 struct pico_frame *pico_socket_frame_alloc(struct pico_socket *s, uint16_t len);
tass 68:0847e35d08a6 78
tass 70:cd218dd180e5 79 static int32_t socket_cmp(void * ka, void * kb)
tass 68:0847e35d08a6 80 {
tass 68:0847e35d08a6 81 struct pico_socket *a = ka, *b = kb;
tass 70:cd218dd180e5 82 uint32_t a_is_ip6 = is_sock_ipv6(a);
tass 70:cd218dd180e5 83 uint32_t b_is_ip6 = is_sock_ipv6(b);
tass 68:0847e35d08a6 84
tass 70:cd218dd180e5 85 int32_t diff;
tass 68:0847e35d08a6 86
tass 68:0847e35d08a6 87 /* First, order by network ver */
tass 68:0847e35d08a6 88 if (a_is_ip6 < b_is_ip6)
tass 68:0847e35d08a6 89 return -1;
tass 68:0847e35d08a6 90 if (a_is_ip6 > b_is_ip6)
tass 68:0847e35d08a6 91 return 1;
tass 68:0847e35d08a6 92
tass 68:0847e35d08a6 93 /* If either socket is PICO_IPV4_INADDR_ANY mode, skip local address comparison */
tass 68:0847e35d08a6 94
tass 68:0847e35d08a6 95 /* At this point, sort by local host */
tass 68:0847e35d08a6 96
tass 68:0847e35d08a6 97 if (0) {
tass 68:0847e35d08a6 98 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 99 } else if (a_is_ip6) {
tass 68:0847e35d08a6 100 if ((memcmp(a->local_addr.ip6.addr, PICO_IP6_ANY, PICO_SIZE_IP6)==0) || memcmp((b->local_addr.ip6.addr, PICO_IP6_ANY, PICO_SIZE_IP6) == 0))
tass 68:0847e35d08a6 101 diff = 0;
tass 68:0847e35d08a6 102 else
tass 68:0847e35d08a6 103 diff = memcmp(a->local_addr.ip6.addr, b->local_addr.ip6.addr, PICO_SIZE_IP6);
tass 68:0847e35d08a6 104 #endif
tass 68:0847e35d08a6 105 } else {
tass 68:0847e35d08a6 106 if ((a->local_addr.ip4.addr == PICO_IP4_ANY) || (b->local_addr.ip4.addr == PICO_IP4_ANY))
tass 68:0847e35d08a6 107 diff = 0;
tass 68:0847e35d08a6 108 else
tass 70:cd218dd180e5 109 diff = (int32_t)(a->local_addr.ip4.addr - b->local_addr.ip4.addr);
tass 68:0847e35d08a6 110 }
tass 68:0847e35d08a6 111
tass 68:0847e35d08a6 112 if (diff)
tass 68:0847e35d08a6 113 return diff;
tass 68:0847e35d08a6 114
tass 68:0847e35d08a6 115
tass 68:0847e35d08a6 116 /* Sort by remote host */
tass 68:0847e35d08a6 117 if (a_is_ip6)
tass 68:0847e35d08a6 118 diff = memcmp(a->remote_addr.ip6.addr, b->remote_addr.ip6.addr, PICO_SIZE_IP6);
tass 68:0847e35d08a6 119 else
tass 70:cd218dd180e5 120 diff = (int32_t)(a->remote_addr.ip4.addr - b->remote_addr.ip4.addr);
tass 68:0847e35d08a6 121
tass 68:0847e35d08a6 122 if (diff)
tass 68:0847e35d08a6 123 return diff;
tass 68:0847e35d08a6 124
tass 68:0847e35d08a6 125 /* And finally by remote port. The two sockets are coincident if the quad is the same. */
tass 68:0847e35d08a6 126 return b->remote_port - a->remote_port;
tass 68:0847e35d08a6 127 }
tass 68:0847e35d08a6 128
tass 68:0847e35d08a6 129 struct pico_sockport
tass 68:0847e35d08a6 130 {
tass 68:0847e35d08a6 131 struct pico_tree socks; // how you make the connection ?
tass 68:0847e35d08a6 132 uint16_t number;
tass 68:0847e35d08a6 133 uint16_t proto;
tass 68:0847e35d08a6 134 };
tass 68:0847e35d08a6 135
tass 68:0847e35d08a6 136 #define INIT_SOCKPORT { {&LEAF , socket_cmp}, 0, 0 }
tass 68:0847e35d08a6 137
tass 68:0847e35d08a6 138 int sockport_cmp(void * ka, void * kb)
tass 68:0847e35d08a6 139 {
tass 68:0847e35d08a6 140 struct pico_sockport *a = ka, *b = kb;
tass 68:0847e35d08a6 141 if (a->number < b->number)
tass 68:0847e35d08a6 142 return -1;
tass 68:0847e35d08a6 143 if (a->number > b->number)
tass 68:0847e35d08a6 144 return 1;
tass 68:0847e35d08a6 145 return 0;
tass 68:0847e35d08a6 146 }
tass 68:0847e35d08a6 147
tass 68:0847e35d08a6 148 PICO_TREE_DECLARE(UDPTable,sockport_cmp);
tass 68:0847e35d08a6 149 PICO_TREE_DECLARE(TCPTable,sockport_cmp);
tass 68:0847e35d08a6 150
tass 68:0847e35d08a6 151 #ifdef PICO_SUPPORT_MCAST
tass 68:0847e35d08a6 152 /* socket
tass 68:0847e35d08a6 153 * |
tass 68:0847e35d08a6 154 * MCASTListen
tass 68:0847e35d08a6 155 * | | |
tass 68:0847e35d08a6 156 * ------------ | ------------
tass 68:0847e35d08a6 157 * | | |
tass 68:0847e35d08a6 158 * MCASTSources MCASTSources MCASTSources
tass 68:0847e35d08a6 159 * | | | | | | | | | | | |
tass 68:0847e35d08a6 160 * S S S S S S S S S S S S
tass 68:0847e35d08a6 161 *
tass 68:0847e35d08a6 162 * MCASTListen: RBTree(mcast_link, mcast_group)
tass 68:0847e35d08a6 163 * MCASTSources: RBTree(source)
tass 68:0847e35d08a6 164 */
tass 68:0847e35d08a6 165 struct pico_mcast_listen
tass 68:0847e35d08a6 166 {
tass 68:0847e35d08a6 167 uint8_t filter_mode;
tass 68:0847e35d08a6 168 struct pico_ip4 mcast_link;
tass 68:0847e35d08a6 169 struct pico_ip4 mcast_group;
tass 68:0847e35d08a6 170 struct pico_tree MCASTSources;
tass 68:0847e35d08a6 171 };
tass 68:0847e35d08a6 172
tass 68:0847e35d08a6 173 static int mcast_listen_cmp(void *ka, void *kb)
tass 68:0847e35d08a6 174 {
tass 68:0847e35d08a6 175 struct pico_mcast_listen *a = ka, *b = kb;
tass 68:0847e35d08a6 176 if (a->mcast_group.addr < b->mcast_group.addr)
tass 68:0847e35d08a6 177 return -1;
tass 68:0847e35d08a6 178 if (a->mcast_group.addr > b->mcast_group.addr)
tass 68:0847e35d08a6 179 return 1;
tass 68:0847e35d08a6 180
tass 68:0847e35d08a6 181 if (a->mcast_link.addr < b->mcast_link.addr)
tass 68:0847e35d08a6 182 return -1;
tass 68:0847e35d08a6 183 if (a->mcast_link.addr > b->mcast_link.addr)
tass 68:0847e35d08a6 184 return 1;
tass 68:0847e35d08a6 185
tass 68:0847e35d08a6 186 return 0;
tass 68:0847e35d08a6 187 }
tass 68:0847e35d08a6 188
tass 68:0847e35d08a6 189 static int mcast_sources_cmp(void *ka, void *kb)
tass 68:0847e35d08a6 190 {
tass 68:0847e35d08a6 191 struct pico_ip4 *a = ka, *b = kb;
tass 68:0847e35d08a6 192 if (a->addr < b->addr)
tass 68:0847e35d08a6 193 return -1;
tass 68:0847e35d08a6 194 if (a->addr > b->addr)
tass 68:0847e35d08a6 195 return 1;
tass 68:0847e35d08a6 196 return 0;
tass 68:0847e35d08a6 197 }
tass 68:0847e35d08a6 198
tass 68:0847e35d08a6 199 static int mcast_socket_cmp(void *ka, void *kb)
tass 68:0847e35d08a6 200 {
tass 68:0847e35d08a6 201 struct pico_socket *a = ka, *b = kb;
tass 68:0847e35d08a6 202 if (a < b)
tass 68:0847e35d08a6 203 return -1;
tass 68:0847e35d08a6 204 if (a > b)
tass 68:0847e35d08a6 205 return 1;
tass 68:0847e35d08a6 206 return 0;
tass 68:0847e35d08a6 207 }
tass 68:0847e35d08a6 208 /* gather all multicast sockets to hasten filter aggregation */
tass 68:0847e35d08a6 209 PICO_TREE_DECLARE(MCASTSockets, mcast_socket_cmp);
tass 68:0847e35d08a6 210
tass 68:0847e35d08a6 211 static int mcast_filter_cmp(void *ka, void *kb)
tass 68:0847e35d08a6 212 {
tass 68:0847e35d08a6 213 struct pico_ip4 *a = ka, *b = kb;
tass 68:0847e35d08a6 214 if (a->addr < b->addr)
tass 68:0847e35d08a6 215 return -1;
tass 68:0847e35d08a6 216 if (a->addr > b->addr)
tass 68:0847e35d08a6 217 return 1;
tass 68:0847e35d08a6 218 return 0;
tass 68:0847e35d08a6 219 }
tass 68:0847e35d08a6 220 /* gather sources to be filtered */
tass 68:0847e35d08a6 221 PICO_TREE_DECLARE(MCASTFilter, mcast_filter_cmp);
tass 68:0847e35d08a6 222
tass 74:c146c4e346c4 223 static struct pico_mcast_listen *listen_find(struct pico_socket *s, struct pico_ip4 *lnk, struct pico_ip4 *grp)
tass 74:c146c4e346c4 224 {
tass 74:c146c4e346c4 225 struct pico_mcast_listen ltest = {0};
tass 74:c146c4e346c4 226 ltest.mcast_link.addr = lnk->addr;
tass 74:c146c4e346c4 227 ltest.mcast_group.addr = grp->addr;
tass 74:c146c4e346c4 228 return pico_tree_findKey(s->MCASTListen, &ltest);
tass 74:c146c4e346c4 229 }
tass 74:c146c4e346c4 230
tass 68:0847e35d08a6 231 /* MCASTFilter will be empty if no socket is listening on mcast_group on mcast_link anymore */
tass 68:0847e35d08a6 232 static int pico_socket_aggregate_mcastfilters(struct pico_ip4 *mcast_link, struct pico_ip4 *mcast_group)
tass 68:0847e35d08a6 233 {
tass 68:0847e35d08a6 234 uint8_t filter_mode = PICO_IP_MULTICAST_INCLUDE;
tass 74:c146c4e346c4 235 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 236 struct pico_ip4 *source = NULL;
tass 68:0847e35d08a6 237 struct pico_socket *mcast_sock = NULL;
tass 68:0847e35d08a6 238 struct pico_tree_node *index = NULL, *_tmp = NULL, *index2 = NULL, *_tmp2 = NULL;
tass 68:0847e35d08a6 239
tass 68:0847e35d08a6 240
tass 68:0847e35d08a6 241 /* cleanup old filter */
tass 68:0847e35d08a6 242 pico_tree_foreach_safe(index, &MCASTFilter, _tmp)
tass 68:0847e35d08a6 243 {
tass 68:0847e35d08a6 244 pico_tree_delete(&MCASTFilter, index->keyValue);
tass 68:0847e35d08a6 245 }
tass 68:0847e35d08a6 246
tass 68:0847e35d08a6 247 /* construct new filter */
tass 68:0847e35d08a6 248 pico_tree_foreach(index, &MCASTSockets)
tass 68:0847e35d08a6 249 {
tass 68:0847e35d08a6 250 mcast_sock = index->keyValue;
tass 74:c146c4e346c4 251 listen = listen_find(mcast_sock, mcast_link, mcast_group);
tass 68:0847e35d08a6 252 if (listen) {
tass 68:0847e35d08a6 253 /* aggregate filter */
tass 68:0847e35d08a6 254 switch(filter_mode)
tass 68:0847e35d08a6 255 {
tass 68:0847e35d08a6 256 case PICO_IP_MULTICAST_INCLUDE:
tass 68:0847e35d08a6 257 switch (listen->filter_mode)
tass 68:0847e35d08a6 258 {
tass 68:0847e35d08a6 259 case PICO_IP_MULTICAST_INCLUDE:
tass 68:0847e35d08a6 260 /* filter = summation of INCLUDEs */
tass 68:0847e35d08a6 261 /* mode stays INCLUDE, add all sources to filter */
tass 68:0847e35d08a6 262 pico_tree_foreach(index2, &listen->MCASTSources)
tass 68:0847e35d08a6 263 {
tass 68:0847e35d08a6 264 source = index2->keyValue;
tass 68:0847e35d08a6 265 pico_tree_insert(&MCASTFilter, source);
tass 68:0847e35d08a6 266 }
tass 68:0847e35d08a6 267 break;
tass 68:0847e35d08a6 268
tass 68:0847e35d08a6 269 case PICO_IP_MULTICAST_EXCLUDE:
tass 68:0847e35d08a6 270 /* filter = EXCLUDE - INCLUDE */
tass 68:0847e35d08a6 271 /* delete from the interface INCLUDE filter any source NOT in the socket EXCLUDE filter */
tass 68:0847e35d08a6 272 pico_tree_foreach_safe(index2, &MCASTFilter, _tmp2)
tass 68:0847e35d08a6 273 {
tass 68:0847e35d08a6 274 source = pico_tree_findKey(&listen->MCASTSources, index2->keyValue);
tass 68:0847e35d08a6 275 if (!source)
tass 68:0847e35d08a6 276 pico_tree_delete(&MCASTFilter, index2->keyValue);
tass 68:0847e35d08a6 277 }
tass 68:0847e35d08a6 278 /* any record with filter mode EXCLUDE, causes the interface mode to be EXCLUDE */
tass 68:0847e35d08a6 279 filter_mode = PICO_IP_MULTICAST_EXCLUDE;
tass 68:0847e35d08a6 280 /* add to the interface EXCLUDE filter any socket source NOT in the former interface INCLUDE filter */
tass 68:0847e35d08a6 281 pico_tree_foreach(index2, &listen->MCASTSources)
tass 68:0847e35d08a6 282 {
tass 68:0847e35d08a6 283 source = pico_tree_insert(&MCASTFilter, index2->keyValue);
tass 68:0847e35d08a6 284 if (source)
tass 68:0847e35d08a6 285 pico_tree_delete(&MCASTFilter, source);
tass 68:0847e35d08a6 286 }
tass 68:0847e35d08a6 287 break;
tass 68:0847e35d08a6 288
tass 68:0847e35d08a6 289 default:
tass 68:0847e35d08a6 290 return -1;
tass 68:0847e35d08a6 291 }
tass 68:0847e35d08a6 292 break;
tass 68:0847e35d08a6 293
tass 68:0847e35d08a6 294 case PICO_IP_MULTICAST_EXCLUDE:
tass 68:0847e35d08a6 295 switch (listen->filter_mode)
tass 68:0847e35d08a6 296 {
tass 68:0847e35d08a6 297 case PICO_IP_MULTICAST_INCLUDE:
tass 68:0847e35d08a6 298 /* filter = EXCLUDE - INCLUDE */
tass 68:0847e35d08a6 299 /* any record with filter mode EXCLUDE, causes the interface mode to be EXCLUDE */
tass 68:0847e35d08a6 300 /* remove from the interface EXCLUDE filter any source in the socket INCLUDE filter */
tass 68:0847e35d08a6 301 pico_tree_foreach(index2, &listen->MCASTSources)
tass 68:0847e35d08a6 302 {
tass 68:0847e35d08a6 303 source = pico_tree_findKey(&MCASTFilter, index2->keyValue);
tass 68:0847e35d08a6 304 if (source)
tass 68:0847e35d08a6 305 pico_tree_delete(&MCASTFilter, source);
tass 68:0847e35d08a6 306 }
tass 68:0847e35d08a6 307 break;
tass 68:0847e35d08a6 308
tass 68:0847e35d08a6 309 case PICO_IP_MULTICAST_EXCLUDE:
tass 68:0847e35d08a6 310 /* filter = intersection of EXCLUDEs */
tass 68:0847e35d08a6 311 /* any record with filter mode EXCLUDE, causes the interface mode to be EXCLUDE */
tass 68:0847e35d08a6 312 /* remove from the interface EXCLUDE filter any source not in the socket EXCLUDE filter */
tass 68:0847e35d08a6 313 pico_tree_foreach_safe(index2, &MCASTFilter, _tmp2)
tass 68:0847e35d08a6 314 {
tass 68:0847e35d08a6 315 source = pico_tree_findKey(&listen->MCASTSources, index2->keyValue);
tass 68:0847e35d08a6 316 if (!source)
tass 68:0847e35d08a6 317 pico_tree_delete(&MCASTFilter, index2->keyValue);
tass 68:0847e35d08a6 318 }
tass 68:0847e35d08a6 319 break;
tass 68:0847e35d08a6 320
tass 68:0847e35d08a6 321 default:
tass 68:0847e35d08a6 322 return -1;
tass 68:0847e35d08a6 323 }
tass 68:0847e35d08a6 324 break;
tass 68:0847e35d08a6 325
tass 68:0847e35d08a6 326 default:
tass 68:0847e35d08a6 327 return -1;
tass 68:0847e35d08a6 328 }
tass 68:0847e35d08a6 329 }
tass 68:0847e35d08a6 330 }
tass 68:0847e35d08a6 331 return filter_mode;
tass 68:0847e35d08a6 332 }
tass 68:0847e35d08a6 333
tass 68:0847e35d08a6 334 static int pico_socket_mcast_filter(struct pico_socket *s, struct pico_ip4 *mcast_group, struct pico_ip4 *src)
tass 68:0847e35d08a6 335 {
tass 68:0847e35d08a6 336 struct pico_ipv4_link *mcast_link = NULL;
tass 74:c146c4e346c4 337 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 338 struct pico_tree_node *index = NULL;
tass 68:0847e35d08a6 339
tass 68:0847e35d08a6 340 /* no multicast enabled on socket */
tass 68:0847e35d08a6 341 if (!s->MCASTListen)
tass 68:0847e35d08a6 342 return 0;
tass 68:0847e35d08a6 343
tass 68:0847e35d08a6 344 mcast_link = pico_ipv4_link_get(&s->local_addr.ip4);
tass 68:0847e35d08a6 345 if (!mcast_link)
tass 68:0847e35d08a6 346 return -1;
tass 74:c146c4e346c4 347 listen = listen_find(s, &mcast_link->address, mcast_group);
tass 68:0847e35d08a6 348 if (!listen)
tass 68:0847e35d08a6 349 return -1;
tass 68:0847e35d08a6 350
tass 68:0847e35d08a6 351 /* perform source filtering */
tass 68:0847e35d08a6 352 switch (listen->filter_mode)
tass 68:0847e35d08a6 353 {
tass 68:0847e35d08a6 354 case PICO_IP_MULTICAST_INCLUDE:
tass 68:0847e35d08a6 355 pico_tree_foreach(index, &listen->MCASTSources)
tass 68:0847e35d08a6 356 {
tass 68:0847e35d08a6 357 if (src->addr == ((struct pico_ip4 *)index->keyValue)->addr) {
tass 68:0847e35d08a6 358 so_mcast_dbg("MCAST: IP %08X in included socket source list\n", src->addr);
tass 68:0847e35d08a6 359 return 0;
tass 68:0847e35d08a6 360 }
tass 68:0847e35d08a6 361 }
tass 68:0847e35d08a6 362 so_mcast_dbg("MCAST: IP %08X NOT in included socket source list\n", src->addr);
tass 68:0847e35d08a6 363 return -1;
tass 68:0847e35d08a6 364 break;
tass 68:0847e35d08a6 365
tass 68:0847e35d08a6 366 case PICO_IP_MULTICAST_EXCLUDE:
tass 68:0847e35d08a6 367 pico_tree_foreach(index, &listen->MCASTSources)
tass 68:0847e35d08a6 368 {
tass 68:0847e35d08a6 369 if (src->addr == ((struct pico_ip4 *)index->keyValue)->addr) {
tass 68:0847e35d08a6 370 so_mcast_dbg("MCAST: IP %08X in excluded socket source list\n", src->addr);
tass 68:0847e35d08a6 371 return -1;
tass 68:0847e35d08a6 372 }
tass 68:0847e35d08a6 373 }
tass 68:0847e35d08a6 374 so_mcast_dbg("MCAST: IP %08X NOT in excluded socket source list\n", src->addr);
tass 68:0847e35d08a6 375 return 0;
tass 68:0847e35d08a6 376 break;
tass 68:0847e35d08a6 377
tass 68:0847e35d08a6 378 default:
tass 68:0847e35d08a6 379 return -1;
tass 68:0847e35d08a6 380 break;
tass 68:0847e35d08a6 381 }
tass 68:0847e35d08a6 382 return -1;
tass 68:0847e35d08a6 383 }
tass 68:0847e35d08a6 384
tass 68:0847e35d08a6 385 static inline struct pico_ipv4_link *pico_socket_setoption_mcastargs_validation(struct pico_ip_mreq *mreq, struct pico_ip_mreq_source *mreq_source)
tass 68:0847e35d08a6 386 {
tass 68:0847e35d08a6 387 struct pico_ipv4_link *mcast_link = NULL;
tass 68:0847e35d08a6 388
tass 68:0847e35d08a6 389 if (!mreq && !mreq_source)
tass 68:0847e35d08a6 390 return NULL;
tass 68:0847e35d08a6 391
tass 68:0847e35d08a6 392 if (mreq) {
tass 68:0847e35d08a6 393 if (!mreq->mcast_group_addr.addr)
tass 68:0847e35d08a6 394 return NULL;
tass 68:0847e35d08a6 395 if (pico_ipv4_is_unicast(mreq->mcast_group_addr.addr))
tass 68:0847e35d08a6 396 return NULL;
tass 68:0847e35d08a6 397
tass 68:0847e35d08a6 398 if (!mreq->mcast_link_addr.addr) {
tass 68:0847e35d08a6 399 mcast_link = pico_ipv4_get_default_mcastlink();
tass 68:0847e35d08a6 400 if (!mcast_link)
tass 68:0847e35d08a6 401 return NULL;
tass 68:0847e35d08a6 402 } else {
tass 68:0847e35d08a6 403 mcast_link = pico_ipv4_link_get(&mreq->mcast_link_addr);
tass 68:0847e35d08a6 404 if (!mcast_link)
tass 68:0847e35d08a6 405 return NULL;
tass 68:0847e35d08a6 406 }
tass 68:0847e35d08a6 407 }
tass 68:0847e35d08a6 408 if (mreq_source) {
tass 68:0847e35d08a6 409 if (!mreq_source->mcast_group_addr.addr)
tass 68:0847e35d08a6 410 return NULL;
tass 68:0847e35d08a6 411 if (pico_ipv4_is_unicast(mreq_source->mcast_group_addr.addr))
tass 68:0847e35d08a6 412 return NULL;
tass 68:0847e35d08a6 413
tass 68:0847e35d08a6 414 if (!mreq_source->mcast_source_addr.addr)
tass 68:0847e35d08a6 415 return NULL;
tass 68:0847e35d08a6 416 if (!pico_ipv4_is_unicast(mreq_source->mcast_source_addr.addr))
tass 68:0847e35d08a6 417 return NULL;
tass 68:0847e35d08a6 418
tass 68:0847e35d08a6 419 if (!mreq_source->mcast_link_addr.addr) {
tass 68:0847e35d08a6 420 mcast_link = pico_ipv4_get_default_mcastlink();
tass 68:0847e35d08a6 421 if (!mcast_link)
tass 68:0847e35d08a6 422 return NULL;
tass 68:0847e35d08a6 423 } else {
tass 68:0847e35d08a6 424 mcast_link = pico_ipv4_link_get(&mreq_source->mcast_link_addr);
tass 68:0847e35d08a6 425 if (!mcast_link)
tass 68:0847e35d08a6 426 return NULL;
tass 68:0847e35d08a6 427 }
tass 68:0847e35d08a6 428 }
tass 68:0847e35d08a6 429 return mcast_link;
tass 68:0847e35d08a6 430 }
tass 68:0847e35d08a6 431 #else
tass 68:0847e35d08a6 432 static int pico_socket_mcast_filter(struct pico_socket *s, struct pico_ip4 *mcast_group, struct pico_ip4 *src) {
tass 68:0847e35d08a6 433 return 0;
tass 68:0847e35d08a6 434 }
tass 68:0847e35d08a6 435 #endif /* PICO_SUPPORT_MCAST */
tass 68:0847e35d08a6 436
tass 68:0847e35d08a6 437 static struct pico_sockport *pico_get_sockport(uint16_t proto, uint16_t port)
tass 68:0847e35d08a6 438 {
tass 68:0847e35d08a6 439 struct pico_sockport test = INIT_SOCKPORT;
tass 68:0847e35d08a6 440 test.number = port;
tass 68:0847e35d08a6 441
tass 68:0847e35d08a6 442 if (proto == PICO_PROTO_UDP)
tass 68:0847e35d08a6 443 return pico_tree_findKey(&UDPTable,&test);
tass 68:0847e35d08a6 444
tass 68:0847e35d08a6 445 else if (proto == PICO_PROTO_TCP)
tass 68:0847e35d08a6 446 return pico_tree_findKey(&TCPTable,&test);
tass 68:0847e35d08a6 447
tass 68:0847e35d08a6 448 else return NULL;
tass 68:0847e35d08a6 449 }
tass 68:0847e35d08a6 450
tass 68:0847e35d08a6 451 int pico_is_port_free(uint16_t proto, uint16_t port, void *addr, void *net)
tass 68:0847e35d08a6 452 {
tass 68:0847e35d08a6 453 struct pico_sockport *sp;
tass 68:0847e35d08a6 454 struct pico_ip4 ip;
tass 68:0847e35d08a6 455 sp = pico_get_sockport(proto, port);
tass 68:0847e35d08a6 456
tass 68:0847e35d08a6 457 if (!net)
tass 68:0847e35d08a6 458 net = &pico_proto_ipv4;
tass 68:0847e35d08a6 459
tass 68:0847e35d08a6 460 /** IPv6 (wip) ***/
tass 68:0847e35d08a6 461 if (net != &pico_proto_ipv4) {
tass 68:0847e35d08a6 462 dbg("IPV6!!!!!\n");
tass 68:0847e35d08a6 463 return (!sp);
tass 68:0847e35d08a6 464 }
tass 68:0847e35d08a6 465
tass 68:0847e35d08a6 466 /* IPv4 */
tass 68:0847e35d08a6 467 #ifdef PICO_SUPPORT_NAT
tass 70:cd218dd180e5 468 if (pico_ipv4_nat_find(port, NULL, 0, (uint8_t)proto)) {
tass 68:0847e35d08a6 469 dbg("In use by nat....\n");
tass 68:0847e35d08a6 470 return 0;
tass 68:0847e35d08a6 471 }
tass 68:0847e35d08a6 472 #endif
tass 68:0847e35d08a6 473 if (addr)
tass 68:0847e35d08a6 474 ip.addr = ((struct pico_ip4 *)addr)->addr;
tass 68:0847e35d08a6 475 else
tass 68:0847e35d08a6 476 ip.addr = PICO_IPV4_INADDR_ANY;
tass 68:0847e35d08a6 477
tass 68:0847e35d08a6 478 if (ip.addr == PICO_IPV4_INADDR_ANY) {
tass 68:0847e35d08a6 479 if (!sp) return 1;
tass 68:0847e35d08a6 480 else {
tass 68:0847e35d08a6 481 dbg("In use, and asked for ANY\n");
tass 68:0847e35d08a6 482 return 0;
tass 68:0847e35d08a6 483 }
tass 68:0847e35d08a6 484 }
tass 68:0847e35d08a6 485 if (sp) {
tass 68:0847e35d08a6 486 struct pico_ip4 *s_local;
tass 68:0847e35d08a6 487 struct pico_tree_node *idx;
tass 68:0847e35d08a6 488 struct pico_socket *s;
tass 68:0847e35d08a6 489 pico_tree_foreach(idx, &sp->socks) {
tass 68:0847e35d08a6 490 s = idx->keyValue;
tass 68:0847e35d08a6 491 if (s->net == &pico_proto_ipv4) {
tass 68:0847e35d08a6 492 s_local = (struct pico_ip4*) &s->local_addr;
tass 68:0847e35d08a6 493 if ((s_local->addr == PICO_IPV4_INADDR_ANY) || (s_local->addr == ip.addr))
tass 68:0847e35d08a6 494 return 0;
tass 68:0847e35d08a6 495 }
tass 68:0847e35d08a6 496 }
tass 68:0847e35d08a6 497 }
tass 68:0847e35d08a6 498 return 1;
tass 68:0847e35d08a6 499 }
tass 68:0847e35d08a6 500
tass 68:0847e35d08a6 501 static int pico_check_socket(struct pico_socket *s)
tass 68:0847e35d08a6 502 {
tass 68:0847e35d08a6 503 struct pico_sockport *test;
tass 68:0847e35d08a6 504 struct pico_socket *found;
tass 68:0847e35d08a6 505 struct pico_tree_node * index;
tass 68:0847e35d08a6 506
tass 68:0847e35d08a6 507 test = pico_get_sockport(PROTO(s), s->local_port);
tass 68:0847e35d08a6 508
tass 68:0847e35d08a6 509 if (!test) {
tass 68:0847e35d08a6 510 return -1;
tass 68:0847e35d08a6 511 }
tass 68:0847e35d08a6 512
tass 68:0847e35d08a6 513 pico_tree_foreach(index,&test->socks){
tass 68:0847e35d08a6 514 found = index->keyValue;
tass 68:0847e35d08a6 515 if (s == found) {
tass 68:0847e35d08a6 516 return 0;
tass 68:0847e35d08a6 517 }
tass 68:0847e35d08a6 518 }
tass 68:0847e35d08a6 519
tass 68:0847e35d08a6 520 return -1;
tass 68:0847e35d08a6 521 }
tass 68:0847e35d08a6 522
tass 68:0847e35d08a6 523 struct pico_socket* pico_sockets_find(uint16_t local,uint16_t remote)
tass 68:0847e35d08a6 524 {
tass 68:0847e35d08a6 525 struct pico_socket * sock = NULL;
tass 68:0847e35d08a6 526 struct pico_tree_node *index = NULL;
tass 68:0847e35d08a6 527 struct pico_sockport *sp = NULL;
tass 68:0847e35d08a6 528
tass 68:0847e35d08a6 529 sp = pico_get_sockport(PICO_PROTO_TCP,local);
tass 68:0847e35d08a6 530 if(sp)
tass 68:0847e35d08a6 531 {
tass 68:0847e35d08a6 532 pico_tree_foreach(index,&sp->socks)
tass 68:0847e35d08a6 533 {
tass 68:0847e35d08a6 534 if( ((struct pico_socket *)index->keyValue)->remote_port == remote)
tass 68:0847e35d08a6 535 {
tass 68:0847e35d08a6 536 sock = (struct pico_socket *)index->keyValue;
tass 68:0847e35d08a6 537 break;
tass 68:0847e35d08a6 538 }
tass 68:0847e35d08a6 539 }
tass 68:0847e35d08a6 540 }
tass 68:0847e35d08a6 541
tass 68:0847e35d08a6 542 return sock;
tass 68:0847e35d08a6 543 }
tass 68:0847e35d08a6 544
tass 68:0847e35d08a6 545
tass 70:cd218dd180e5 546 int8_t pico_socket_add(struct pico_socket *s)
tass 68:0847e35d08a6 547 {
tass 68:0847e35d08a6 548 struct pico_sockport *sp = pico_get_sockport(PROTO(s), s->local_port);
tass 68:0847e35d08a6 549 LOCK(Mutex);
tass 68:0847e35d08a6 550 if (!sp) {
tass 68:0847e35d08a6 551 //dbg("Creating sockport..%04x\n", s->local_port); /* In comment due to spam during test */
tass 68:0847e35d08a6 552 sp = pico_zalloc(sizeof(struct pico_sockport));
tass 68:0847e35d08a6 553
tass 68:0847e35d08a6 554 if (!sp) {
tass 68:0847e35d08a6 555 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 556 UNLOCK(Mutex);
tass 68:0847e35d08a6 557 return -1;
tass 68:0847e35d08a6 558 }
tass 68:0847e35d08a6 559 sp->proto = PROTO(s);
tass 68:0847e35d08a6 560 sp->number = s->local_port;
tass 68:0847e35d08a6 561 sp->socks.root = &LEAF;
tass 68:0847e35d08a6 562 sp->socks.compare = socket_cmp;
tass 68:0847e35d08a6 563
tass 68:0847e35d08a6 564 if (PROTO(s) == PICO_PROTO_UDP)
tass 68:0847e35d08a6 565 {
tass 68:0847e35d08a6 566 pico_tree_insert(&UDPTable,sp);
tass 68:0847e35d08a6 567 }
tass 68:0847e35d08a6 568 else if (PROTO(s) == PICO_PROTO_TCP)
tass 68:0847e35d08a6 569 {
tass 68:0847e35d08a6 570 pico_tree_insert(&TCPTable,sp);
tass 68:0847e35d08a6 571 }
tass 68:0847e35d08a6 572 }
tass 68:0847e35d08a6 573
tass 68:0847e35d08a6 574 pico_tree_insert(&sp->socks,s);
tass 68:0847e35d08a6 575 s->state |= PICO_SOCKET_STATE_BOUND;
tass 68:0847e35d08a6 576 UNLOCK(Mutex);
tass 68:0847e35d08a6 577 #if DEBUG_SOCKET_TREE
tass 68:0847e35d08a6 578 {
tass 68:0847e35d08a6 579 struct pico_tree_node * index;
tass 68:0847e35d08a6 580 //RB_FOREACH(s, socket_tree, &sp->socks) {
tass 68:0847e35d08a6 581 pico_tree_foreach(index,&sp->socks){
tass 68:0847e35d08a6 582 s = index->keyValue;
tass 68:0847e35d08a6 583 dbg(">>>> List Socket lc=%hu rm=%hu\n", short_be(s->local_port), short_be(s->remote_port));
tass 68:0847e35d08a6 584 }
tass 68:0847e35d08a6 585
tass 68:0847e35d08a6 586 }
tass 68:0847e35d08a6 587 #endif
tass 68:0847e35d08a6 588 return 0;
tass 68:0847e35d08a6 589 }
tass 68:0847e35d08a6 590
tass 68:0847e35d08a6 591 static void socket_clean_queues(struct pico_socket *sock)
tass 68:0847e35d08a6 592 {
tass 68:0847e35d08a6 593 struct pico_frame * f_in = pico_dequeue(&sock->q_in);
tass 68:0847e35d08a6 594 struct pico_frame * f_out = pico_dequeue(&sock->q_out);
tass 68:0847e35d08a6 595 while(f_in || f_out)
tass 68:0847e35d08a6 596 {
tass 68:0847e35d08a6 597 if(f_in)
tass 68:0847e35d08a6 598 {
tass 68:0847e35d08a6 599 pico_frame_discard(f_in);
tass 68:0847e35d08a6 600 f_in = pico_dequeue(&sock->q_in);
tass 68:0847e35d08a6 601 }
tass 68:0847e35d08a6 602
tass 68:0847e35d08a6 603 if(f_out)
tass 68:0847e35d08a6 604 {
tass 68:0847e35d08a6 605 pico_frame_discard(f_out);
tass 68:0847e35d08a6 606 f_out = pico_dequeue(&sock->q_out);
tass 68:0847e35d08a6 607 }
tass 68:0847e35d08a6 608 }
tass 68:0847e35d08a6 609 // for tcp sockets go further and clean the sockets inside queue
tass 68:0847e35d08a6 610 if(sock->proto == &pico_proto_tcp)
tass 68:0847e35d08a6 611 pico_tcp_cleanup_queues(sock);
tass 68:0847e35d08a6 612 }
tass 68:0847e35d08a6 613
tass 73:dfb737147f6e 614 static void socket_garbage_collect(uint32_t now, void *arg)
tass 68:0847e35d08a6 615 {
tass 68:0847e35d08a6 616 struct pico_socket *s = (struct pico_socket *) arg;
tass 68:0847e35d08a6 617 IGNORE_PARAMETER(now);
tass 68:0847e35d08a6 618 socket_clean_queues(s);
tass 68:0847e35d08a6 619 pico_free(s);
tass 68:0847e35d08a6 620 }
tass 68:0847e35d08a6 621
tass 70:cd218dd180e5 622 int8_t pico_socket_del(struct pico_socket *s)
tass 68:0847e35d08a6 623 {
tass 68:0847e35d08a6 624 struct pico_sockport *sp = pico_get_sockport(PROTO(s), s->local_port);
tass 68:0847e35d08a6 625
tass 68:0847e35d08a6 626 if (!sp) {
tass 68:0847e35d08a6 627 pico_err = PICO_ERR_ENXIO;
tass 68:0847e35d08a6 628 return -1;
tass 68:0847e35d08a6 629 }
tass 68:0847e35d08a6 630
tass 68:0847e35d08a6 631 LOCK(Mutex);
tass 68:0847e35d08a6 632 pico_tree_delete(&sp->socks,s);
tass 68:0847e35d08a6 633 s->net = NULL;
tass 68:0847e35d08a6 634 if(pico_tree_empty(&sp->socks)){
tass 68:0847e35d08a6 635 if (PROTO(s) == PICO_PROTO_UDP)
tass 68:0847e35d08a6 636 {
tass 68:0847e35d08a6 637 pico_tree_delete(&UDPTable,sp);
tass 68:0847e35d08a6 638 }
tass 68:0847e35d08a6 639 else if (PROTO(s) == PICO_PROTO_TCP)
tass 68:0847e35d08a6 640 {
tass 68:0847e35d08a6 641 pico_tree_delete(&TCPTable,sp);
tass 68:0847e35d08a6 642 }
tass 68:0847e35d08a6 643
tass 68:0847e35d08a6 644 if(sp_tcp == sp) sp_tcp = NULL;
tass 68:0847e35d08a6 645
tass 68:0847e35d08a6 646 if(sp_udp == sp) sp_udp = NULL;
tass 68:0847e35d08a6 647
tass 68:0847e35d08a6 648 pico_free(sp);
tass 68:0847e35d08a6 649
tass 68:0847e35d08a6 650 }
tass 68:0847e35d08a6 651
tass 68:0847e35d08a6 652 #ifdef PICO_SUPPORT_MCAST
tass 68:0847e35d08a6 653 do {
tass 68:0847e35d08a6 654 int filter_mode;
tass 68:0847e35d08a6 655 struct pico_tree_node *index = NULL, *_tmp = NULL, *index2 = NULL, *_tmp2 = NULL;
tass 68:0847e35d08a6 656 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 657 struct pico_ip4 *source = NULL;
tass 68:0847e35d08a6 658 if (s->MCASTListen) {
tass 68:0847e35d08a6 659 pico_tree_delete(&MCASTSockets, s);
tass 68:0847e35d08a6 660 pico_tree_foreach_safe(index, s->MCASTListen, _tmp)
tass 68:0847e35d08a6 661 {
tass 68:0847e35d08a6 662 listen = index->keyValue;
tass 68:0847e35d08a6 663 pico_tree_foreach_safe(index2, &listen->MCASTSources, _tmp2)
tass 68:0847e35d08a6 664 {
tass 68:0847e35d08a6 665 source = index->keyValue;
tass 68:0847e35d08a6 666 pico_tree_delete(&listen->MCASTSources, source);
tass 68:0847e35d08a6 667 pico_free(source);
tass 68:0847e35d08a6 668 }
tass 68:0847e35d08a6 669 filter_mode = pico_socket_aggregate_mcastfilters(&listen->mcast_link, &listen->mcast_group);
tass 68:0847e35d08a6 670 if (filter_mode >= 0)
tass 70:cd218dd180e5 671 pico_ipv4_mcast_leave(&listen->mcast_link, &listen->mcast_group, 1, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 672 pico_tree_delete(s->MCASTListen, listen);
tass 68:0847e35d08a6 673 pico_free(listen);
tass 68:0847e35d08a6 674 }
tass 68:0847e35d08a6 675 pico_free(s->MCASTListen);
tass 68:0847e35d08a6 676 }
tass 68:0847e35d08a6 677 } while (0);
tass 68:0847e35d08a6 678 #endif
tass 68:0847e35d08a6 679
tass 68:0847e35d08a6 680 s->state = PICO_SOCKET_STATE_CLOSED;
tass 68:0847e35d08a6 681 pico_timer_add(3000, socket_garbage_collect, s);
tass 68:0847e35d08a6 682 UNLOCK(Mutex);
tass 68:0847e35d08a6 683 return 0;
tass 68:0847e35d08a6 684 }
tass 68:0847e35d08a6 685
tass 70:cd218dd180e5 686 static int8_t pico_socket_alter_state(struct pico_socket *s, uint16_t more_states, uint16_t less_states, uint16_t tcp_state)
tass 68:0847e35d08a6 687 {
tass 68:0847e35d08a6 688 struct pico_sockport *sp;
tass 68:0847e35d08a6 689 if (more_states & PICO_SOCKET_STATE_BOUND)
tass 68:0847e35d08a6 690 return pico_socket_add(s);
tass 68:0847e35d08a6 691
tass 68:0847e35d08a6 692 if (less_states & PICO_SOCKET_STATE_BOUND)
tass 68:0847e35d08a6 693 return pico_socket_del(s);
tass 68:0847e35d08a6 694
tass 68:0847e35d08a6 695 sp = pico_get_sockport(PROTO(s), s->local_port);
tass 68:0847e35d08a6 696 if (!sp) {
tass 68:0847e35d08a6 697 pico_err = PICO_ERR_ENXIO;
tass 68:0847e35d08a6 698 return -1;
tass 68:0847e35d08a6 699 }
tass 68:0847e35d08a6 700
tass 68:0847e35d08a6 701 s->state |= more_states;
tass 73:dfb737147f6e 702 s->state = (uint16_t)(s->state & (~less_states));
tass 68:0847e35d08a6 703 if (tcp_state) {
tass 68:0847e35d08a6 704 s->state &= 0x00FF;
tass 68:0847e35d08a6 705 s->state |= tcp_state;
tass 68:0847e35d08a6 706 }
tass 68:0847e35d08a6 707
tass 68:0847e35d08a6 708 return 0;
tass 68:0847e35d08a6 709 }
tass 68:0847e35d08a6 710
tass 68:0847e35d08a6 711 static int pico_socket_deliver(struct pico_protocol *p, struct pico_frame *f, uint16_t localport)
tass 68:0847e35d08a6 712 {
tass 68:0847e35d08a6 713 struct pico_frame *cpy = NULL;
tass 68:0847e35d08a6 714 struct pico_sockport *sp = NULL;
tass 68:0847e35d08a6 715 struct pico_socket *s = NULL, *found = NULL;
tass 68:0847e35d08a6 716 struct pico_tree_node *index = NULL;
tass 68:0847e35d08a6 717 struct pico_tree_node *_tmp;
tass 68:0847e35d08a6 718 struct pico_trans *tr = (struct pico_trans *) f->transport_hdr;
tass 68:0847e35d08a6 719 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 720 struct pico_ipv4_hdr *ip4hdr;
tass 68:0847e35d08a6 721 #endif
tass 68:0847e35d08a6 722 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 723 struct pico_ipv6_hdr *ip6hdr;
tass 68:0847e35d08a6 724 #endif
tass 68:0847e35d08a6 725
tass 68:0847e35d08a6 726 if (!tr)
tass 68:0847e35d08a6 727 return -1;
tass 68:0847e35d08a6 728
tass 68:0847e35d08a6 729 sp = pico_get_sockport(p->proto_number, localport);
tass 68:0847e35d08a6 730
tass 68:0847e35d08a6 731 if (!sp) {
tass 68:0847e35d08a6 732 dbg("No such port %d\n",short_be(localport));
tass 68:0847e35d08a6 733 return -1;
tass 68:0847e35d08a6 734 }
tass 68:0847e35d08a6 735
tass 68:0847e35d08a6 736 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 737 if (p->proto_number == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 738 pico_tree_foreach_safe(index,&sp->socks, _tmp){
tass 68:0847e35d08a6 739 s = index->keyValue;
tass 68:0847e35d08a6 740 /* 4-tuple identification of socket (port-IP) */
tass 68:0847e35d08a6 741 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 742 if (IS_IPV4(f)) {
tass 68:0847e35d08a6 743 struct pico_ip4 s_local, s_remote, p_src, p_dst;
tass 68:0847e35d08a6 744 ip4hdr = (struct pico_ipv4_hdr*)(f->net_hdr);
tass 68:0847e35d08a6 745 s_local.addr = s->local_addr.ip4.addr;
tass 68:0847e35d08a6 746 s_remote.addr = s->remote_addr.ip4.addr;
tass 68:0847e35d08a6 747 p_src.addr = ip4hdr->src.addr;
tass 68:0847e35d08a6 748 p_dst.addr = ip4hdr->dst.addr;
tass 68:0847e35d08a6 749 if ( (s->remote_port == tr->sport) && /* remote port check */
tass 68:0847e35d08a6 750 (s_remote.addr == p_src.addr) && /* remote addr check */
tass 68:0847e35d08a6 751 ((s_local.addr == PICO_IPV4_INADDR_ANY) || (s_local.addr == p_dst.addr))) { /* Either local socket is ANY, or matches dst */
tass 68:0847e35d08a6 752 found = s;
tass 68:0847e35d08a6 753 break;
tass 68:0847e35d08a6 754 } else if ( (s->remote_port == 0) && /* not connected... listening */
tass 68:0847e35d08a6 755 ((s_local.addr == PICO_IPV4_INADDR_ANY) || (s_local.addr == p_dst.addr))) { /* Either local socket is ANY, or matches dst */
tass 68:0847e35d08a6 756 /* listen socket */
tass 68:0847e35d08a6 757 found = s;
tass 68:0847e35d08a6 758 }
tass 68:0847e35d08a6 759 }
tass 68:0847e35d08a6 760 #endif
tass 68:0847e35d08a6 761 #ifdef PICO_SUPPORT_IPV6 /* XXX TODO make compare for ipv6 addresses */
tass 68:0847e35d08a6 762 if (IS_IPV6(f)) {
tass 68:0847e35d08a6 763 ip6hdr = (struct pico_ipv6_hdr*)(f->net_hdr);
tass 68:0847e35d08a6 764 if ( (s->remote_port == localport) ) { // && (((struct pico_ip6) s->remote_addr.ip6).addr == ((struct pico_ip6)(ip6hdr->src)).addr) ) {
tass 68:0847e35d08a6 765 found = s;
tass 68:0847e35d08a6 766 break;
tass 68:0847e35d08a6 767 } else if (s->remote_port == 0) {
tass 68:0847e35d08a6 768 /* listen socket */
tass 68:0847e35d08a6 769 found = s;
tass 68:0847e35d08a6 770 }
tass 68:0847e35d08a6 771 }
tass 68:0847e35d08a6 772 #endif
tass 68:0847e35d08a6 773 } /* FOREACH */
tass 68:0847e35d08a6 774 if (found != NULL) {
tass 68:0847e35d08a6 775 pico_tcp_input(found,f);
tass 68:0847e35d08a6 776 if ((found->ev_pending) && found->wakeup) {
tass 68:0847e35d08a6 777 found->wakeup(found->ev_pending, found);
tass 68:0847e35d08a6 778 }
tass 68:0847e35d08a6 779 return 0;
tass 68:0847e35d08a6 780 } else {
tass 68:0847e35d08a6 781 dbg("SOCKET> mmm something wrong (prob sockport)\n");
tass 68:0847e35d08a6 782 return -1;
tass 68:0847e35d08a6 783 }
tass 68:0847e35d08a6 784 } /* TCP CASE */
tass 68:0847e35d08a6 785 #endif
tass 68:0847e35d08a6 786
tass 68:0847e35d08a6 787 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 788 if (p->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 789 pico_tree_foreach_safe(index,&sp->socks, _tmp){
tass 68:0847e35d08a6 790 s = index->keyValue;
tass 68:0847e35d08a6 791 if (IS_IPV4(f)) { /* IPV4 */
tass 68:0847e35d08a6 792 struct pico_ip4 s_local, p_dst;
tass 68:0847e35d08a6 793 ip4hdr = (struct pico_ipv4_hdr*)(f->net_hdr);
tass 68:0847e35d08a6 794 s_local.addr = s->local_addr.ip4.addr;
tass 68:0847e35d08a6 795 p_dst.addr = ip4hdr->dst.addr;
tass 68:0847e35d08a6 796 if ((pico_ipv4_is_broadcast(p_dst.addr)) || pico_ipv4_is_multicast(p_dst.addr)) {
tass 68:0847e35d08a6 797 struct pico_device *dev = pico_ipv4_link_find(&s->local_addr.ip4);
tass 68:0847e35d08a6 798 if (pico_ipv4_is_multicast(p_dst.addr) && (pico_socket_mcast_filter(s, &ip4hdr->dst, &ip4hdr->src) < 0))
tass 68:0847e35d08a6 799 return -1;
tass 68:0847e35d08a6 800 if ((s_local.addr == PICO_IPV4_INADDR_ANY) || /* If our local ip is ANY, or.. */
tass 68:0847e35d08a6 801 (dev == f->dev) ) { /* the source of the bcast packet is a neighbor... */
tass 68:0847e35d08a6 802 cpy = pico_frame_copy(f);
tass 68:0847e35d08a6 803 if (!cpy)
tass 68:0847e35d08a6 804 return -1;
tass 68:0847e35d08a6 805 if (pico_enqueue(&s->q_in, cpy) > 0) {
tass 68:0847e35d08a6 806 if (s->wakeup)
tass 68:0847e35d08a6 807 s->wakeup(PICO_SOCK_EV_RD, s);
tass 68:0847e35d08a6 808 }
tass 68:0847e35d08a6 809 }
tass 68:0847e35d08a6 810 } else if ((s_local.addr == PICO_IPV4_INADDR_ANY) || (s_local.addr == p_dst.addr))
tass 68:0847e35d08a6 811 { /* Either local socket is ANY, or matches dst */
tass 68:0847e35d08a6 812 cpy = pico_frame_copy(f);
tass 68:0847e35d08a6 813 if (!cpy)
tass 68:0847e35d08a6 814 return -1;
tass 68:0847e35d08a6 815 if (pico_enqueue(&s->q_in, cpy) > 0) {
tass 68:0847e35d08a6 816 if (s->wakeup)
tass 68:0847e35d08a6 817 s->wakeup(PICO_SOCK_EV_RD, s);
tass 68:0847e35d08a6 818 }
tass 68:0847e35d08a6 819 }
tass 68:0847e35d08a6 820 } else {
tass 68:0847e35d08a6 821 /*... IPv6 */
tass 68:0847e35d08a6 822 }
tass 68:0847e35d08a6 823 } /* FOREACH */
tass 68:0847e35d08a6 824 pico_frame_discard(f);
tass 68:0847e35d08a6 825 if (s)
tass 68:0847e35d08a6 826 return 0;
tass 68:0847e35d08a6 827 else
tass 68:0847e35d08a6 828 return -1;
tass 68:0847e35d08a6 829 }
tass 68:0847e35d08a6 830 #endif
tass 68:0847e35d08a6 831 return -1;
tass 68:0847e35d08a6 832 }
tass 68:0847e35d08a6 833
tass 68:0847e35d08a6 834 struct pico_socket *pico_socket_open(uint16_t net, uint16_t proto, void (*wakeup)(uint16_t ev, struct pico_socket *))
tass 68:0847e35d08a6 835 {
tass 68:0847e35d08a6 836
tass 68:0847e35d08a6 837 struct pico_socket *s = NULL;
tass 68:0847e35d08a6 838
tass 68:0847e35d08a6 839 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 840 if (proto == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 841 s = pico_udp_open();
tass 68:0847e35d08a6 842 s->proto = &pico_proto_udp;
tass 68:0847e35d08a6 843 }
tass 68:0847e35d08a6 844 #endif
tass 68:0847e35d08a6 845
tass 68:0847e35d08a6 846 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 847 if (proto == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 848 s = pico_tcp_open();
tass 68:0847e35d08a6 849 s->proto = &pico_proto_tcp;
tass 68:0847e35d08a6 850 /*check if Nagle enabled */
tass 68:0847e35d08a6 851 if (!IS_NAGLE_ENABLED(s))
tass 68:0847e35d08a6 852 dbg("ERROR Nagle should be enabled here\n\n");
tass 68:0847e35d08a6 853 }
tass 68:0847e35d08a6 854 #endif
tass 68:0847e35d08a6 855
tass 68:0847e35d08a6 856 if (!s) {
tass 68:0847e35d08a6 857 pico_err = PICO_ERR_EPROTONOSUPPORT;
tass 68:0847e35d08a6 858 return NULL;
tass 68:0847e35d08a6 859 }
tass 68:0847e35d08a6 860
tass 68:0847e35d08a6 861 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 862 if (net == PICO_PROTO_IPV4)
tass 68:0847e35d08a6 863 s->net = &pico_proto_ipv4;
tass 68:0847e35d08a6 864 #endif
tass 68:0847e35d08a6 865
tass 68:0847e35d08a6 866 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 867 if (net == PICO_PROTO_IPV6)
tass 68:0847e35d08a6 868 s->net = &pico_proto_ipv6;
tass 68:0847e35d08a6 869 #endif
tass 68:0847e35d08a6 870
tass 68:0847e35d08a6 871 s->q_in.max_size = PICO_DEFAULT_SOCKETQ;
tass 68:0847e35d08a6 872 s->q_out.max_size = PICO_DEFAULT_SOCKETQ;
tass 68:0847e35d08a6 873 s->wakeup = wakeup;
tass 68:0847e35d08a6 874
tass 68:0847e35d08a6 875 if (!s->net) {
tass 68:0847e35d08a6 876 pico_free(s);
tass 68:0847e35d08a6 877 pico_err = PICO_ERR_ENETUNREACH;
tass 68:0847e35d08a6 878 return NULL;
tass 68:0847e35d08a6 879 }
tass 68:0847e35d08a6 880 return s;
tass 68:0847e35d08a6 881 }
tass 68:0847e35d08a6 882
tass 68:0847e35d08a6 883
tass 68:0847e35d08a6 884 struct pico_socket *pico_socket_clone(struct pico_socket *facsimile)
tass 68:0847e35d08a6 885 {
tass 68:0847e35d08a6 886 struct pico_socket *s = NULL;
tass 68:0847e35d08a6 887
tass 68:0847e35d08a6 888 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 889 if (facsimile->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 890 s = pico_udp_open();
tass 68:0847e35d08a6 891 s->proto = &pico_proto_udp;
tass 68:0847e35d08a6 892 }
tass 68:0847e35d08a6 893 #endif
tass 68:0847e35d08a6 894
tass 68:0847e35d08a6 895 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 896 if (facsimile->proto->proto_number == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 897 s = pico_tcp_open();
tass 68:0847e35d08a6 898 s->proto = &pico_proto_tcp;
tass 68:0847e35d08a6 899 }
tass 68:0847e35d08a6 900 #endif
tass 68:0847e35d08a6 901
tass 68:0847e35d08a6 902 if (!s) {
tass 68:0847e35d08a6 903 pico_err = PICO_ERR_EPROTONOSUPPORT;
tass 68:0847e35d08a6 904 return NULL;
tass 68:0847e35d08a6 905 }
tass 68:0847e35d08a6 906 s->local_port = facsimile->local_port;
tass 68:0847e35d08a6 907 s->remote_port = facsimile->remote_port;
tass 68:0847e35d08a6 908 s->state = facsimile->state;
tass 68:0847e35d08a6 909
tass 68:0847e35d08a6 910 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 911 if (facsimile->net == &pico_proto_ipv4) {
tass 68:0847e35d08a6 912 s->net = &pico_proto_ipv4;
tass 68:0847e35d08a6 913 memcpy(&s->local_addr, &facsimile->local_addr, sizeof(struct pico_ip4));
tass 68:0847e35d08a6 914 memcpy(&s->remote_addr, &facsimile->remote_addr, sizeof(struct pico_ip4));
tass 68:0847e35d08a6 915 }
tass 68:0847e35d08a6 916 #endif
tass 68:0847e35d08a6 917
tass 68:0847e35d08a6 918 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 919 if (net == &pico_proto_ipv6) {
tass 68:0847e35d08a6 920 s->net = &pico_proto_ipv6;
tass 68:0847e35d08a6 921 memcpy(&s->local_addr, &facsimile->local_addr, sizeof(struct pico_ip6));
tass 68:0847e35d08a6 922 memcpy(&s->remote_addr, &facsimile->remote_addr, sizeof(struct pico_ip6));
tass 68:0847e35d08a6 923 }
tass 68:0847e35d08a6 924 #endif
tass 68:0847e35d08a6 925 s->q_in.max_size = PICO_DEFAULT_SOCKETQ;
tass 68:0847e35d08a6 926 s->q_out.max_size = PICO_DEFAULT_SOCKETQ;
tass 68:0847e35d08a6 927 s->wakeup = NULL;
tass 68:0847e35d08a6 928 if (!s->net) {
tass 68:0847e35d08a6 929 pico_free(s);
tass 68:0847e35d08a6 930 pico_err = PICO_ERR_ENETUNREACH;
tass 68:0847e35d08a6 931 return NULL;
tass 68:0847e35d08a6 932 }
tass 68:0847e35d08a6 933 return s;
tass 68:0847e35d08a6 934 }
tass 68:0847e35d08a6 935
tass 68:0847e35d08a6 936 int pico_socket_read(struct pico_socket *s, void *buf, int len)
tass 68:0847e35d08a6 937 {
tass 68:0847e35d08a6 938 if (!s || buf == NULL) {
tass 68:0847e35d08a6 939 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 940 return -1;
tass 68:0847e35d08a6 941 } else {
tass 68:0847e35d08a6 942 /* check if exists in tree */
tass 68:0847e35d08a6 943 /* See task #178 */
tass 68:0847e35d08a6 944 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 945 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 946 return -1;
tass 68:0847e35d08a6 947 }
tass 68:0847e35d08a6 948 }
tass 68:0847e35d08a6 949
tass 68:0847e35d08a6 950 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 951 pico_err = PICO_ERR_EIO;
tass 68:0847e35d08a6 952 return -1;
tass 68:0847e35d08a6 953 }
tass 68:0847e35d08a6 954 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 955 if (PROTO(s) == PICO_PROTO_UDP)
tass 70:cd218dd180e5 956 return pico_udp_recv(s, buf, (uint16_t)len, NULL, NULL);
tass 68:0847e35d08a6 957 #endif
tass 68:0847e35d08a6 958
tass 68:0847e35d08a6 959 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 960 if (PROTO(s) == PICO_PROTO_TCP){
tass 68:0847e35d08a6 961 /* check if in shutdown state and if no more data in tcpq_in */
tass 68:0847e35d08a6 962 if ((s->state & PICO_SOCKET_STATE_SHUT_REMOTE) && pico_tcp_queue_in_is_empty(s) ) {
tass 68:0847e35d08a6 963 pico_err = PICO_ERR_ESHUTDOWN;
tass 68:0847e35d08a6 964 return -1;
tass 68:0847e35d08a6 965 } else {
tass 70:cd218dd180e5 966 return (int)pico_tcp_read(s, buf, (uint32_t)len);
tass 68:0847e35d08a6 967 }
tass 68:0847e35d08a6 968 }
tass 68:0847e35d08a6 969 #endif
tass 68:0847e35d08a6 970 return 0;
tass 68:0847e35d08a6 971 }
tass 68:0847e35d08a6 972
tass 68:0847e35d08a6 973 int pico_socket_write(struct pico_socket *s, const void *buf, int len)
tass 68:0847e35d08a6 974 {
tass 68:0847e35d08a6 975 if (!s || buf == NULL) {
tass 68:0847e35d08a6 976 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 977 return -1;
tass 68:0847e35d08a6 978 } else {
tass 68:0847e35d08a6 979 /* check if exists in tree */
tass 68:0847e35d08a6 980 /* See task #178 */
tass 68:0847e35d08a6 981 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 982 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 983 return -1;
tass 68:0847e35d08a6 984 }
tass 68:0847e35d08a6 985 }
tass 68:0847e35d08a6 986
tass 68:0847e35d08a6 987 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 988 pico_err = PICO_ERR_EIO;
tass 68:0847e35d08a6 989 return -1;
tass 68:0847e35d08a6 990 }
tass 68:0847e35d08a6 991 if ((s->state & PICO_SOCKET_STATE_CONNECTED) == 0) {
tass 68:0847e35d08a6 992 pico_err = PICO_ERR_ENOTCONN;
tass 68:0847e35d08a6 993 return -1;
tass 68:0847e35d08a6 994 } else if (s->state & PICO_SOCKET_STATE_SHUT_LOCAL) { /* check if in shutdown state */
tass 68:0847e35d08a6 995 pico_err = PICO_ERR_ESHUTDOWN;
tass 68:0847e35d08a6 996 return -1;
tass 68:0847e35d08a6 997 } else {
tass 68:0847e35d08a6 998 return pico_socket_sendto(s, buf, len, &s->remote_addr, s->remote_port);
tass 68:0847e35d08a6 999 }
tass 68:0847e35d08a6 1000 }
tass 68:0847e35d08a6 1001
tass 68:0847e35d08a6 1002 uint16_t pico_socket_high_port(uint16_t proto)
tass 68:0847e35d08a6 1003 {
tass 68:0847e35d08a6 1004 uint16_t port;
tass 68:0847e35d08a6 1005 if (0 ||
tass 68:0847e35d08a6 1006 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1007 (proto == PICO_PROTO_TCP) ||
tass 68:0847e35d08a6 1008 #endif
tass 68:0847e35d08a6 1009 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1010 (proto == PICO_PROTO_UDP) ||
tass 68:0847e35d08a6 1011 #endif
tass 68:0847e35d08a6 1012 0) {
tass 68:0847e35d08a6 1013 do {
tass 68:0847e35d08a6 1014 uint32_t rand = pico_rand();
tass 68:0847e35d08a6 1015 port = (uint16_t) (rand & 0xFFFFU);
tass 70:cd218dd180e5 1016 port = (uint16_t)((port % (65535 - 1024)) + 1024U);
tass 68:0847e35d08a6 1017 if (pico_is_port_free(proto, port, NULL, NULL)) {
tass 68:0847e35d08a6 1018 return short_be(port);
tass 68:0847e35d08a6 1019 }
tass 68:0847e35d08a6 1020 } while(1);
tass 68:0847e35d08a6 1021 }
tass 68:0847e35d08a6 1022 else return 0U;
tass 68:0847e35d08a6 1023 }
tass 68:0847e35d08a6 1024
tass 68:0847e35d08a6 1025
tass 68:0847e35d08a6 1026 int pico_socket_sendto(struct pico_socket *s, const void *buf, const int len, void *dst, uint16_t remote_port)
tass 68:0847e35d08a6 1027 {
tass 68:0847e35d08a6 1028 struct pico_frame *f;
tass 68:0847e35d08a6 1029 struct pico_remote_duple *remote_duple = NULL;
tass 68:0847e35d08a6 1030 int socket_mtu = PICO_SOCKET4_MTU;
tass 68:0847e35d08a6 1031 int header_offset = 0;
tass 68:0847e35d08a6 1032 int total_payload_written = 0;
tass 68:0847e35d08a6 1033 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 1034 struct pico_ip4 *src4;
tass 68:0847e35d08a6 1035 #endif
tass 68:0847e35d08a6 1036
tass 68:0847e35d08a6 1037 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 1038 struct pico_ip6 *src6;
tass 68:0847e35d08a6 1039 #endif
tass 68:0847e35d08a6 1040 if (len == 0) {
tass 68:0847e35d08a6 1041 return 0;
tass 68:0847e35d08a6 1042 } else if (len < 0) {
tass 68:0847e35d08a6 1043 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1044 return -1;
tass 68:0847e35d08a6 1045 }
tass 68:0847e35d08a6 1046
tass 68:0847e35d08a6 1047 if (buf == NULL || s == NULL) {
tass 68:0847e35d08a6 1048 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1049 return -1;
tass 68:0847e35d08a6 1050 }
tass 68:0847e35d08a6 1051
tass 68:0847e35d08a6 1052 if (!dst || !remote_port) {
tass 68:0847e35d08a6 1053 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1054 return -1;
tass 68:0847e35d08a6 1055 }
tass 68:0847e35d08a6 1056
tass 68:0847e35d08a6 1057 if ((s->state & PICO_SOCKET_STATE_CONNECTED) != 0) {
tass 68:0847e35d08a6 1058 if (remote_port != s->remote_port) {
tass 68:0847e35d08a6 1059 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1060 return -1;
tass 68:0847e35d08a6 1061 }
tass 68:0847e35d08a6 1062 }
tass 68:0847e35d08a6 1063
tass 68:0847e35d08a6 1064 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 1065 if (IS_SOCK_IPV4(s)) {
tass 68:0847e35d08a6 1066 socket_mtu = PICO_SOCKET4_MTU;
tass 68:0847e35d08a6 1067 if ((s->state & PICO_SOCKET_STATE_CONNECTED)) {
tass 68:0847e35d08a6 1068 if (s->remote_addr.ip4.addr != ((struct pico_ip4 *)dst)->addr ) {
tass 68:0847e35d08a6 1069 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1070 return -1;
tass 68:0847e35d08a6 1071 }
tass 68:0847e35d08a6 1072 } else {
tass 68:0847e35d08a6 1073 src4 = pico_ipv4_source_find(dst);
tass 68:0847e35d08a6 1074 if (!src4) {
tass 68:0847e35d08a6 1075 pico_err = PICO_ERR_EHOSTUNREACH;
tass 68:0847e35d08a6 1076 return -1;
tass 68:0847e35d08a6 1077 }
tass 68:0847e35d08a6 1078 if (src4->addr != PICO_IPV4_INADDR_ANY)
tass 68:0847e35d08a6 1079 s->local_addr.ip4.addr = src4->addr;
tass 68:0847e35d08a6 1080 # ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1081 /* socket remote info could change in a consecutive call, make persistent */
tass 68:0847e35d08a6 1082 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1083 remote_duple = pico_zalloc(sizeof(struct pico_remote_duple));
tass 68:0847e35d08a6 1084 remote_duple->remote_addr.ip4.addr = ((struct pico_ip4 *)dst)->addr;
tass 68:0847e35d08a6 1085 remote_duple->remote_port = remote_port;
tass 68:0847e35d08a6 1086 }
tass 68:0847e35d08a6 1087 # endif
tass 68:0847e35d08a6 1088 }
tass 68:0847e35d08a6 1089 #endif
tass 68:0847e35d08a6 1090 } else if (IS_SOCK_IPV6(s)) {
tass 68:0847e35d08a6 1091 socket_mtu = PICO_SOCKET6_MTU;
tass 68:0847e35d08a6 1092 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 1093 if (s->state & PICO_SOCKET_STATE_CONNECTED) {
tass 68:0847e35d08a6 1094 if (memcmp(&s->remote_addr, dst, PICO_SIZE_IP6))
tass 68:0847e35d08a6 1095 return -1;
tass 68:0847e35d08a6 1096 } else {
tass 68:0847e35d08a6 1097 src6 = pico_ipv6_source_find(dst);
tass 68:0847e35d08a6 1098 if (!src6) {
tass 68:0847e35d08a6 1099 pico_err = PICO_ERR_EHOSTUNREACH;
tass 68:0847e35d08a6 1100 return -1;
tass 68:0847e35d08a6 1101 }
tass 68:0847e35d08a6 1102 memcpy(&s->local_addr, src6, PICO_SIZE_IP6);
tass 68:0847e35d08a6 1103 memcpy(&s->remote_addr, dst, PICO_SIZE_IP6);
tass 68:0847e35d08a6 1104 # ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1105 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1106 remote_duple = pico_zalloc(sizeof(struct pico_remote_duple));
tass 68:0847e35d08a6 1107 remote_duple->remote_addr.ip6.addr = ((struct pico_ip6 *)dst)->addr;
tass 68:0847e35d08a6 1108 remote_duple->remote_port = remote_port;
tass 68:0847e35d08a6 1109 }
tass 68:0847e35d08a6 1110 # endif
tass 68:0847e35d08a6 1111 }
tass 68:0847e35d08a6 1112 #endif
tass 68:0847e35d08a6 1113 }
tass 68:0847e35d08a6 1114
tass 68:0847e35d08a6 1115 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 1116 s->local_port = pico_socket_high_port(s->proto->proto_number);
tass 68:0847e35d08a6 1117 if (s->local_port == 0) {
tass 68:0847e35d08a6 1118 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1119 return -1;
tass 68:0847e35d08a6 1120 }
tass 68:0847e35d08a6 1121 }
tass 68:0847e35d08a6 1122 if ((s->state & PICO_SOCKET_STATE_CONNECTED) == 0) {
tass 68:0847e35d08a6 1123 s->remote_port = remote_port;
tass 68:0847e35d08a6 1124 }
tass 68:0847e35d08a6 1125
tass 68:0847e35d08a6 1126 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1127 if (PROTO(s) == PICO_PROTO_TCP)
tass 68:0847e35d08a6 1128 header_offset = pico_tcp_overhead(s);
tass 68:0847e35d08a6 1129 #endif
tass 68:0847e35d08a6 1130
tass 68:0847e35d08a6 1131 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1132 if (PROTO(s) == PICO_PROTO_UDP)
tass 68:0847e35d08a6 1133 header_offset = sizeof(struct pico_udp_hdr);
tass 68:0847e35d08a6 1134 #endif
tass 68:0847e35d08a6 1135
tass 68:0847e35d08a6 1136 while (total_payload_written < len) {
tass 68:0847e35d08a6 1137 int transport_len = (len - total_payload_written) + header_offset;
tass 68:0847e35d08a6 1138 if (transport_len > socket_mtu)
tass 68:0847e35d08a6 1139 transport_len = socket_mtu;
tass 68:0847e35d08a6 1140 #ifdef PICO_SUPPORT_IPFRAG
tass 68:0847e35d08a6 1141 else {
tass 68:0847e35d08a6 1142 if (total_payload_written)
tass 68:0847e35d08a6 1143 transport_len -= header_offset; /* last fragment, do not allocate memory for transport header */
tass 68:0847e35d08a6 1144 }
tass 68:0847e35d08a6 1145 #endif /* PICO_SUPPORT_IPFRAG */
tass 68:0847e35d08a6 1146
tass 70:cd218dd180e5 1147 f = pico_socket_frame_alloc(s, (uint16_t)transport_len);
tass 68:0847e35d08a6 1148 if (!f) {
tass 68:0847e35d08a6 1149 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1150 return -1;
tass 68:0847e35d08a6 1151 }
tass 68:0847e35d08a6 1152 f->payload += header_offset;
tass 73:dfb737147f6e 1153 f->payload_len = (uint16_t)(f->payload_len - header_offset);
tass 68:0847e35d08a6 1154 f->sock = s;
tass 68:0847e35d08a6 1155 if (remote_duple) {
tass 68:0847e35d08a6 1156 f->info = pico_zalloc(sizeof(struct pico_remote_duple));
tass 68:0847e35d08a6 1157 memcpy(f->info, remote_duple, sizeof(struct pico_remote_duple));
tass 68:0847e35d08a6 1158 }
tass 68:0847e35d08a6 1159
tass 68:0847e35d08a6 1160 #ifdef PICO_SUPPORT_IPFRAG
tass 68:0847e35d08a6 1161 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1162 if (PROTO(s) == PICO_PROTO_UDP && ((len + header_offset) > socket_mtu)) {
tass 68:0847e35d08a6 1163 /* hacking way to identify fragmentation frames: payload != transport_hdr -> first frame */
tass 68:0847e35d08a6 1164 if (!total_payload_written) {
tass 68:0847e35d08a6 1165 frag_dbg("FRAG: first fragmented frame %p | len = %u offset = 0\n", f, f->payload_len);
tass 68:0847e35d08a6 1166 /* transport header length field contains total length + header length */
tass 70:cd218dd180e5 1167 f->transport_len = (uint16_t)(len + header_offset);
tass 68:0847e35d08a6 1168 f->frag = short_be(PICO_IPV4_MOREFRAG);
tass 68:0847e35d08a6 1169 } else {
tass 68:0847e35d08a6 1170 /* no transport header in fragmented IP */
tass 68:0847e35d08a6 1171 f->payload = f->transport_hdr;
tass 73:dfb737147f6e 1172 f->payload_len = (uint16_t)(f->payload_len + header_offset);
tass 68:0847e35d08a6 1173 /* set offset in octets */
tass 70:cd218dd180e5 1174 f->frag = short_be((uint16_t)((total_payload_written + header_offset) / 8));
tass 68:0847e35d08a6 1175 if (total_payload_written + f->payload_len < len) {
tass 68:0847e35d08a6 1176 frag_dbg("FRAG: intermediate fragmented frame %p | len = %u offset = %u\n", f, f->payload_len, short_be(f->frag));
tass 68:0847e35d08a6 1177 f->frag |= short_be(PICO_IPV4_MOREFRAG);
tass 68:0847e35d08a6 1178 } else {
tass 68:0847e35d08a6 1179 frag_dbg("FRAG: last fragmented frame %p | len = %u offset = %u\n", f, f->payload_len, short_be(f->frag));
tass 68:0847e35d08a6 1180 f->frag &= short_be(PICO_IPV4_FRAG_MASK);
tass 68:0847e35d08a6 1181 }
tass 68:0847e35d08a6 1182 }
tass 68:0847e35d08a6 1183 } else {
tass 68:0847e35d08a6 1184 f->frag = short_be(PICO_IPV4_DONTFRAG);
tass 68:0847e35d08a6 1185 }
tass 68:0847e35d08a6 1186 # endif /* PICO_SUPPORT_UDP */
tass 68:0847e35d08a6 1187 #endif /* PICO_SUPPORT_IPFRAG */
tass 68:0847e35d08a6 1188
tass 68:0847e35d08a6 1189 if (f->payload_len <= 0) {
tass 68:0847e35d08a6 1190 pico_frame_discard(f);
tass 68:0847e35d08a6 1191 if (remote_duple)
tass 68:0847e35d08a6 1192 pico_free(remote_duple);
tass 68:0847e35d08a6 1193 return total_payload_written;
tass 68:0847e35d08a6 1194 }
tass 68:0847e35d08a6 1195
tass 68:0847e35d08a6 1196 memcpy(f->payload, buf + total_payload_written, f->payload_len);
tass 68:0847e35d08a6 1197 //dbg("Pushing segment, hdr len: %d, payload_len: %d\n", header_offset, f->payload_len);
tass 68:0847e35d08a6 1198
tass 68:0847e35d08a6 1199 if (s->proto->push(s->proto, f) > 0) {
tass 70:cd218dd180e5 1200 total_payload_written += (int)f->payload_len;
tass 68:0847e35d08a6 1201 } else {
tass 68:0847e35d08a6 1202 pico_frame_discard(f);
tass 68:0847e35d08a6 1203 pico_err = PICO_ERR_EAGAIN;
tass 68:0847e35d08a6 1204 break;
tass 68:0847e35d08a6 1205 }
tass 68:0847e35d08a6 1206 }
tass 68:0847e35d08a6 1207 if (remote_duple)
tass 68:0847e35d08a6 1208 pico_free(remote_duple);
tass 68:0847e35d08a6 1209 return total_payload_written;
tass 68:0847e35d08a6 1210 }
tass 68:0847e35d08a6 1211
tass 68:0847e35d08a6 1212 int pico_socket_send(struct pico_socket *s, const void *buf, int len)
tass 68:0847e35d08a6 1213 {
tass 68:0847e35d08a6 1214 if (!s || buf == NULL) {
tass 68:0847e35d08a6 1215 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1216 return -1;
tass 68:0847e35d08a6 1217 } else {
tass 68:0847e35d08a6 1218 /* check if exists in tree */
tass 68:0847e35d08a6 1219 /* See task #178 */
tass 68:0847e35d08a6 1220 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 1221 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1222 return -1;
tass 68:0847e35d08a6 1223 }
tass 68:0847e35d08a6 1224 }
tass 68:0847e35d08a6 1225
tass 68:0847e35d08a6 1226 if ((s->state & PICO_SOCKET_STATE_CONNECTED) == 0) {
tass 68:0847e35d08a6 1227 pico_err = PICO_ERR_ENOTCONN;
tass 68:0847e35d08a6 1228 return -1;
tass 68:0847e35d08a6 1229 }
tass 68:0847e35d08a6 1230 return pico_socket_sendto(s, buf, len, &s->remote_addr, s->remote_port);
tass 68:0847e35d08a6 1231 }
tass 68:0847e35d08a6 1232
tass 68:0847e35d08a6 1233 int pico_socket_recvfrom(struct pico_socket *s, void *buf, int len, void *orig, uint16_t *remote_port)
tass 68:0847e35d08a6 1234 {
tass 68:0847e35d08a6 1235 if (!s || buf == NULL) { /// || orig == NULL || remote_port == NULL) {
tass 68:0847e35d08a6 1236 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1237 return -1;
tass 68:0847e35d08a6 1238 } else {
tass 68:0847e35d08a6 1239 /* check if exists in tree */
tass 68:0847e35d08a6 1240 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 1241 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1242 /* See task #178 */
tass 68:0847e35d08a6 1243 return -1;
tass 68:0847e35d08a6 1244 }
tass 68:0847e35d08a6 1245 }
tass 68:0847e35d08a6 1246
tass 68:0847e35d08a6 1247 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 1248 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1249 return -1;
tass 68:0847e35d08a6 1250 }
tass 68:0847e35d08a6 1251 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1252 if (PROTO(s) == PICO_PROTO_UDP) {
tass 70:cd218dd180e5 1253 return pico_udp_recv(s, buf, (uint16_t)len, orig, remote_port);
tass 68:0847e35d08a6 1254 }
tass 68:0847e35d08a6 1255 #endif
tass 68:0847e35d08a6 1256 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1257 if (PROTO(s) == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 1258 /* check if in shutdown state and if tcpq_in empty */
tass 68:0847e35d08a6 1259 if ((s->state & PICO_SOCKET_STATE_SHUT_REMOTE) && pico_tcp_queue_in_is_empty(s)) {
tass 68:0847e35d08a6 1260 pico_err = PICO_ERR_ESHUTDOWN;
tass 68:0847e35d08a6 1261 return -1;
tass 68:0847e35d08a6 1262 } else {
tass 68:0847e35d08a6 1263 //dbg("socket tcp recv\n");
tass 70:cd218dd180e5 1264 return (int)pico_tcp_read(s, buf, (uint32_t)len);
tass 68:0847e35d08a6 1265 }
tass 68:0847e35d08a6 1266 }
tass 68:0847e35d08a6 1267 #endif
tass 68:0847e35d08a6 1268 //dbg("socket return 0\n");
tass 68:0847e35d08a6 1269 return 0;
tass 68:0847e35d08a6 1270 }
tass 68:0847e35d08a6 1271
tass 68:0847e35d08a6 1272 int pico_socket_recv(struct pico_socket *s, void *buf, int len)
tass 68:0847e35d08a6 1273 {
tass 68:0847e35d08a6 1274 return pico_socket_recvfrom(s, buf, len, NULL, NULL);
tass 68:0847e35d08a6 1275 }
tass 68:0847e35d08a6 1276
tass 68:0847e35d08a6 1277
tass 68:0847e35d08a6 1278 int pico_socket_bind(struct pico_socket *s, void *local_addr, uint16_t *port)
tass 68:0847e35d08a6 1279 {
tass 68:0847e35d08a6 1280 if (!s || !local_addr || !port) {
tass 68:0847e35d08a6 1281 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1282 return -1;
tass 68:0847e35d08a6 1283 }
tass 68:0847e35d08a6 1284
tass 68:0847e35d08a6 1285 if (!is_sock_ipv6(s)) {
tass 68:0847e35d08a6 1286 struct pico_ip4 *ip = (struct pico_ip4 *)local_addr;
tass 68:0847e35d08a6 1287 if (ip->addr != PICO_IPV4_INADDR_ANY) {
tass 68:0847e35d08a6 1288 if (!pico_ipv4_link_find(local_addr)) {
tass 68:0847e35d08a6 1289 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1290 return -1;
tass 68:0847e35d08a6 1291 }
tass 68:0847e35d08a6 1292 }
tass 68:0847e35d08a6 1293 } else {
tass 68:0847e35d08a6 1294 /*... IPv6 */
tass 68:0847e35d08a6 1295 }
tass 68:0847e35d08a6 1296
tass 68:0847e35d08a6 1297
tass 68:0847e35d08a6 1298 /* When given port = 0, get a random high port to bind to. */
tass 68:0847e35d08a6 1299 if (*port == 0) {
tass 68:0847e35d08a6 1300 *port = pico_socket_high_port(PROTO(s));
tass 68:0847e35d08a6 1301 if (*port == 0) {
tass 68:0847e35d08a6 1302 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1303 return -1;
tass 68:0847e35d08a6 1304 }
tass 68:0847e35d08a6 1305 }
tass 68:0847e35d08a6 1306
tass 68:0847e35d08a6 1307 if (pico_is_port_free(PROTO(s), *port, local_addr, s->net) == 0) {
tass 68:0847e35d08a6 1308 pico_err = PICO_ERR_EADDRINUSE;
tass 68:0847e35d08a6 1309 return -1;
tass 68:0847e35d08a6 1310 }
tass 68:0847e35d08a6 1311 s->local_port = *port;
tass 68:0847e35d08a6 1312
tass 68:0847e35d08a6 1313 if (is_sock_ipv6(s)) {
tass 68:0847e35d08a6 1314 struct pico_ip6 *ip = (struct pico_ip6 *) local_addr;
tass 68:0847e35d08a6 1315 memcpy(s->local_addr.ip6.addr, ip, PICO_SIZE_IP6);
tass 68:0847e35d08a6 1316 /* XXX: port ipv4 functionality to ipv6 */
tass 68:0847e35d08a6 1317 /* Check for port already in use */
tass 68:0847e35d08a6 1318 if (pico_is_port_free(PROTO(s), *port, &local_addr, s->net)) {
tass 68:0847e35d08a6 1319 pico_err = PICO_ERR_EADDRINUSE;
tass 68:0847e35d08a6 1320 return -1;
tass 68:0847e35d08a6 1321 }
tass 68:0847e35d08a6 1322 } else if (is_sock_ipv4(s)) {
tass 68:0847e35d08a6 1323 struct pico_ip4 *ip = (struct pico_ip4 *) local_addr;
tass 68:0847e35d08a6 1324 s->local_addr.ip4.addr = ip->addr;
tass 68:0847e35d08a6 1325 }
tass 68:0847e35d08a6 1326 return pico_socket_alter_state(s, PICO_SOCKET_STATE_BOUND, 0, 0);
tass 68:0847e35d08a6 1327 }
tass 68:0847e35d08a6 1328
tass 68:0847e35d08a6 1329 int pico_socket_connect(struct pico_socket *s, const void *remote_addr, uint16_t remote_port)
tass 68:0847e35d08a6 1330 {
tass 68:0847e35d08a6 1331 int ret = -1;
tass 68:0847e35d08a6 1332 pico_err = PICO_ERR_EPROTONOSUPPORT;
tass 68:0847e35d08a6 1333 if (!s || remote_addr == NULL || remote_port == 0) {
tass 68:0847e35d08a6 1334 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1335 return -1;
tass 68:0847e35d08a6 1336 }
tass 68:0847e35d08a6 1337
tass 68:0847e35d08a6 1338 s->remote_port = remote_port;
tass 68:0847e35d08a6 1339
tass 68:0847e35d08a6 1340 if (s->local_port == 0) {
tass 68:0847e35d08a6 1341 s->local_port = pico_socket_high_port(PROTO(s));
tass 68:0847e35d08a6 1342 if (!s->local_port) {
tass 68:0847e35d08a6 1343 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1344 return -1;
tass 68:0847e35d08a6 1345 }
tass 68:0847e35d08a6 1346 }
tass 68:0847e35d08a6 1347
tass 68:0847e35d08a6 1348 if (is_sock_ipv6(s)) {
tass 68:0847e35d08a6 1349 const struct pico_ip6 *ip = (const struct pico_ip6 *) remote_addr;
tass 68:0847e35d08a6 1350 memcpy(s->remote_addr.ip6.addr, ip, PICO_SIZE_IP6);
tass 68:0847e35d08a6 1351 } else if (is_sock_ipv4(s)) {
tass 68:0847e35d08a6 1352 const struct pico_ip4 *local, *ip = (const struct pico_ip4 *) remote_addr;
tass 68:0847e35d08a6 1353 s->remote_addr.ip4.addr = ip->addr;
tass 68:0847e35d08a6 1354 local = pico_ipv4_source_find(ip);
tass 68:0847e35d08a6 1355 if (local) {
tass 68:0847e35d08a6 1356 s->local_addr.ip4.addr = local->addr;
tass 68:0847e35d08a6 1357 } else {
tass 68:0847e35d08a6 1358 pico_err = PICO_ERR_EHOSTUNREACH;
tass 68:0847e35d08a6 1359 return -1;
tass 68:0847e35d08a6 1360 }
tass 68:0847e35d08a6 1361 }
tass 68:0847e35d08a6 1362
tass 68:0847e35d08a6 1363 pico_socket_alter_state(s, PICO_SOCKET_STATE_BOUND, 0, 0);
tass 68:0847e35d08a6 1364
tass 68:0847e35d08a6 1365 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1366 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1367 pico_socket_alter_state(s, PICO_SOCKET_STATE_CONNECTED, 0, 0);
tass 68:0847e35d08a6 1368 pico_err = PICO_ERR_NOERR;
tass 68:0847e35d08a6 1369 ret = 0;
tass 68:0847e35d08a6 1370 }
tass 68:0847e35d08a6 1371 #endif
tass 68:0847e35d08a6 1372
tass 68:0847e35d08a6 1373 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1374 if (PROTO(s) == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 1375 if (pico_tcp_initconn(s) == 0) {
tass 68:0847e35d08a6 1376 pico_socket_alter_state(s, PICO_SOCKET_STATE_CONNECTED | PICO_SOCKET_STATE_TCP_SYN_SENT, 0, 0);
tass 68:0847e35d08a6 1377 pico_err = PICO_ERR_NOERR;
tass 68:0847e35d08a6 1378 ret = 0;
tass 68:0847e35d08a6 1379 } else {
tass 68:0847e35d08a6 1380 pico_err = PICO_ERR_EHOSTUNREACH;
tass 68:0847e35d08a6 1381 }
tass 68:0847e35d08a6 1382 }
tass 68:0847e35d08a6 1383 #endif
tass 68:0847e35d08a6 1384
tass 68:0847e35d08a6 1385 return ret;
tass 68:0847e35d08a6 1386 }
tass 68:0847e35d08a6 1387
tass 68:0847e35d08a6 1388 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1389
tass 68:0847e35d08a6 1390 int pico_socket_listen(struct pico_socket *s, int backlog)
tass 68:0847e35d08a6 1391 {
tass 68:0847e35d08a6 1392 if (!s || backlog < 1) {
tass 68:0847e35d08a6 1393 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1394 return -1;
tass 68:0847e35d08a6 1395 } else {
tass 68:0847e35d08a6 1396 /* check if exists in tree */
tass 68:0847e35d08a6 1397 /* See task #178 */
tass 68:0847e35d08a6 1398 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 1399 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1400 return -1;
tass 68:0847e35d08a6 1401 }
tass 68:0847e35d08a6 1402 }
tass 68:0847e35d08a6 1403
tass 68:0847e35d08a6 1404 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1405 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1406 return -1;
tass 68:0847e35d08a6 1407 }
tass 68:0847e35d08a6 1408
tass 68:0847e35d08a6 1409 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 1410 pico_err = PICO_ERR_EISCONN;
tass 68:0847e35d08a6 1411 return -1;
tass 68:0847e35d08a6 1412 }
tass 68:0847e35d08a6 1413
tass 68:0847e35d08a6 1414 if (backlog < 1) {
tass 68:0847e35d08a6 1415 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1416 return -1;
tass 68:0847e35d08a6 1417 }
tass 68:0847e35d08a6 1418
tass 68:0847e35d08a6 1419 if (PROTO(s) == PICO_PROTO_TCP)
tass 68:0847e35d08a6 1420 pico_socket_alter_state(s, PICO_SOCKET_STATE_TCP_SYN_SENT, 0, PICO_SOCKET_STATE_TCP_LISTEN);
tass 68:0847e35d08a6 1421 s->max_backlog = backlog;
tass 68:0847e35d08a6 1422
tass 68:0847e35d08a6 1423 return 0;
tass 68:0847e35d08a6 1424 }
tass 68:0847e35d08a6 1425
tass 68:0847e35d08a6 1426 struct pico_socket *pico_socket_accept(struct pico_socket *s, void *orig, uint16_t *port)
tass 68:0847e35d08a6 1427 {
tass 68:0847e35d08a6 1428 if (!s || !orig || !port) {
tass 68:0847e35d08a6 1429 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1430 return NULL;
tass 68:0847e35d08a6 1431 }
tass 68:0847e35d08a6 1432
tass 68:0847e35d08a6 1433 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1434
tass 68:0847e35d08a6 1435 if ((s->state & PICO_SOCKET_STATE_BOUND) == 0) {
tass 68:0847e35d08a6 1436 return NULL;
tass 68:0847e35d08a6 1437 }
tass 68:0847e35d08a6 1438
tass 68:0847e35d08a6 1439 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1440 return NULL;
tass 68:0847e35d08a6 1441 }
tass 68:0847e35d08a6 1442
tass 68:0847e35d08a6 1443 if (TCPSTATE(s) == PICO_SOCKET_STATE_TCP_LISTEN) {
tass 68:0847e35d08a6 1444 struct pico_sockport *sp = pico_get_sockport(PICO_PROTO_TCP, s->local_port);
tass 68:0847e35d08a6 1445 struct pico_socket *found;
tass 68:0847e35d08a6 1446 /* If at this point no incoming connection socket is found,
tass 68:0847e35d08a6 1447 * the accept call is valid, but no connection is established yet.
tass 68:0847e35d08a6 1448 */
tass 68:0847e35d08a6 1449 pico_err = PICO_ERR_EAGAIN;
tass 68:0847e35d08a6 1450 if (sp) {
tass 68:0847e35d08a6 1451 struct pico_tree_node * index;
tass 68:0847e35d08a6 1452 //RB_FOREACH(found, socket_tree, &sp->socks) {
tass 68:0847e35d08a6 1453 pico_tree_foreach(index,&sp->socks){
tass 68:0847e35d08a6 1454 found = index->keyValue;
tass 92:f9b6cc6c54c2 1455 if ((s == found->parent) && ((found->state & PICO_SOCKET_STATE_TCP) == PICO_SOCKET_STATE_TCP_ESTABLISHED)) {
tass 68:0847e35d08a6 1456 found->parent = NULL;
tass 68:0847e35d08a6 1457 pico_err = PICO_ERR_NOERR;
tass 68:0847e35d08a6 1458 memcpy(orig, &found->remote_addr, sizeof(struct pico_ip4));
tass 68:0847e35d08a6 1459 *port = found->remote_port;
tass 95:f4ca916a26fe 1460 s->number_of_pending_conn--;
tass 68:0847e35d08a6 1461 return found;
tass 68:0847e35d08a6 1462 }
tass 68:0847e35d08a6 1463 }
tass 68:0847e35d08a6 1464 }
tass 68:0847e35d08a6 1465 }
tass 68:0847e35d08a6 1466 return NULL;
tass 68:0847e35d08a6 1467 }
tass 68:0847e35d08a6 1468
tass 68:0847e35d08a6 1469 #else
tass 68:0847e35d08a6 1470
tass 68:0847e35d08a6 1471 int pico_socket_listen(struct pico_socket *s, int backlog)
tass 68:0847e35d08a6 1472 {
tass 68:0847e35d08a6 1473 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1474 return -1;
tass 68:0847e35d08a6 1475 }
tass 68:0847e35d08a6 1476
tass 68:0847e35d08a6 1477 struct pico_socket *pico_socket_accept(struct pico_socket *s, void *orig, uint16_t *local_port)
tass 68:0847e35d08a6 1478 {
tass 68:0847e35d08a6 1479 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1480 return NULL;
tass 68:0847e35d08a6 1481 }
tass 68:0847e35d08a6 1482
tass 68:0847e35d08a6 1483 #endif
tass 68:0847e35d08a6 1484
tass 68:0847e35d08a6 1485 #define PICO_SOCKET_SETOPT_EN(socket,index) (socket->opt_flags |= (1 << index))
tass 73:dfb737147f6e 1486 #define PICO_SOCKET_SETOPT_DIS(socket,index) (socket->opt_flags &= (uint16_t)~(1 << index))
tass 68:0847e35d08a6 1487
tass 74:c146c4e346c4 1488 #ifdef PICO_SUPPORT_MCAST
tass 74:c146c4e346c4 1489 static struct pico_ipv4_link *setopt_multicast_check(struct pico_socket *s, void *value, int alloc, int bysource)
tass 74:c146c4e346c4 1490 {
tass 74:c146c4e346c4 1491 struct pico_ip_mreq *mreq = NULL;
tass 74:c146c4e346c4 1492 struct pico_ipv4_link *mcast_link = NULL;
tass 74:c146c4e346c4 1493 struct pico_ip_mreq_source *mreq_src = NULL;
tass 74:c146c4e346c4 1494
tass 74:c146c4e346c4 1495 if (!value) {
tass 74:c146c4e346c4 1496 pico_err = PICO_ERR_EINVAL;
tass 74:c146c4e346c4 1497 return NULL;
tass 74:c146c4e346c4 1498 }
tass 74:c146c4e346c4 1499 if (!bysource) {
tass 74:c146c4e346c4 1500 mreq = (struct pico_ip_mreq *) value;
tass 74:c146c4e346c4 1501 mcast_link = pico_socket_setoption_mcastargs_validation(mreq, NULL);
tass 74:c146c4e346c4 1502 if (!mreq->mcast_link_addr.addr)
tass 74:c146c4e346c4 1503 mreq->mcast_link_addr.addr = mcast_link->address.addr;
tass 74:c146c4e346c4 1504 } else {
tass 74:c146c4e346c4 1505 mreq_src = (struct pico_ip_mreq_source *) value;
tass 74:c146c4e346c4 1506 mcast_link = pico_socket_setoption_mcastargs_validation(NULL, mreq_src);
tass 74:c146c4e346c4 1507 if (!mreq_src->mcast_link_addr.addr)
tass 74:c146c4e346c4 1508 mreq_src->mcast_link_addr.addr = mcast_link->address.addr;
tass 74:c146c4e346c4 1509 }
tass 74:c146c4e346c4 1510 if (!mcast_link) {
tass 74:c146c4e346c4 1511 pico_err = PICO_ERR_EINVAL;
tass 74:c146c4e346c4 1512 return NULL;
tass 74:c146c4e346c4 1513 }
tass 74:c146c4e346c4 1514
tass 74:c146c4e346c4 1515 if (!s->MCASTListen) { /* No RBTree allocated yet */
tass 74:c146c4e346c4 1516 if (alloc) {
tass 74:c146c4e346c4 1517 s->MCASTListen = pico_zalloc(sizeof(struct pico_tree));
tass 74:c146c4e346c4 1518 if (!s->MCASTListen) {
tass 74:c146c4e346c4 1519 pico_err = PICO_ERR_ENOMEM;
tass 74:c146c4e346c4 1520 return NULL;
tass 74:c146c4e346c4 1521 }
tass 74:c146c4e346c4 1522 s->MCASTListen->root = &LEAF;
tass 74:c146c4e346c4 1523 s->MCASTListen->compare = mcast_listen_cmp;
tass 74:c146c4e346c4 1524 } else return NULL;
tass 74:c146c4e346c4 1525 }
tass 74:c146c4e346c4 1526 return mcast_link;
tass 74:c146c4e346c4 1527 }
tass 74:c146c4e346c4 1528 #endif
tass 74:c146c4e346c4 1529
tass 68:0847e35d08a6 1530 int pico_socket_setoption(struct pico_socket *s, int option, void *value) // XXX no check against proto (vs setsockopt) or implicit by socket?
tass 68:0847e35d08a6 1531 {
tass 68:0847e35d08a6 1532 if (s == NULL) {
tass 68:0847e35d08a6 1533 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1534 return -1;
tass 68:0847e35d08a6 1535 }
tass 68:0847e35d08a6 1536
tass 68:0847e35d08a6 1537 pico_err = PICO_ERR_NOERR;
tass 68:0847e35d08a6 1538
tass 68:0847e35d08a6 1539 switch (option)
tass 68:0847e35d08a6 1540 {
tass 68:0847e35d08a6 1541 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1542 case PICO_TCP_NODELAY:
tass 68:0847e35d08a6 1543 if (!value) {
tass 68:0847e35d08a6 1544 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1545 return -1;
tass 68:0847e35d08a6 1546 }
tass 68:0847e35d08a6 1547 if (s->proto->proto_number == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 1548 int *val = (int*)value;
tass 68:0847e35d08a6 1549 if (*val > 0) {
tass 68:0847e35d08a6 1550 dbg("setsockopt: Nagle algorithm disabled.\n");
tass 68:0847e35d08a6 1551 PICO_SOCKET_SETOPT_EN(s,PICO_SOCKET_OPT_TCPNODELAY);
tass 68:0847e35d08a6 1552 } else {
tass 68:0847e35d08a6 1553 dbg("setsockopt: Nagle algorithm enabled.\n");
tass 68:0847e35d08a6 1554 PICO_SOCKET_SETOPT_DIS(s,PICO_SOCKET_OPT_TCPNODELAY);
tass 68:0847e35d08a6 1555 }
tass 68:0847e35d08a6 1556 } else {
tass 68:0847e35d08a6 1557 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1558 }
tass 68:0847e35d08a6 1559 break;
tass 68:0847e35d08a6 1560 #endif
tass 68:0847e35d08a6 1561
tass 68:0847e35d08a6 1562
tass 68:0847e35d08a6 1563 #ifdef PICO_SUPPORT_MCAST
tass 68:0847e35d08a6 1564 case PICO_IP_MULTICAST_IF:
tass 68:0847e35d08a6 1565 pico_err = PICO_ERR_EOPNOTSUPP;
tass 68:0847e35d08a6 1566 return -1;
tass 68:0847e35d08a6 1567 break;
tass 68:0847e35d08a6 1568
tass 68:0847e35d08a6 1569 case PICO_IP_MULTICAST_TTL:
tass 68:0847e35d08a6 1570 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1571 return pico_udp_set_mc_ttl(s, *((uint8_t *) value));
tass 68:0847e35d08a6 1572 }
tass 68:0847e35d08a6 1573 break;
tass 68:0847e35d08a6 1574
tass 68:0847e35d08a6 1575 case PICO_IP_MULTICAST_LOOP:
tass 68:0847e35d08a6 1576 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1577 switch (*(uint8_t *) value)
tass 68:0847e35d08a6 1578 {
tass 68:0847e35d08a6 1579 case 0:
tass 68:0847e35d08a6 1580 /* do not loop back multicast datagram */
tass 68:0847e35d08a6 1581 PICO_SOCKET_SETOPT_DIS(s,PICO_SOCKET_OPT_MULTICAST_LOOP);
tass 68:0847e35d08a6 1582 break;
tass 68:0847e35d08a6 1583
tass 68:0847e35d08a6 1584 case 1:
tass 68:0847e35d08a6 1585 /* do loop back multicast datagram */
tass 68:0847e35d08a6 1586 PICO_SOCKET_SETOPT_EN(s,PICO_SOCKET_OPT_MULTICAST_LOOP);
tass 68:0847e35d08a6 1587 break;
tass 68:0847e35d08a6 1588
tass 68:0847e35d08a6 1589 default:
tass 68:0847e35d08a6 1590 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1591 return -1;
tass 68:0847e35d08a6 1592 }
tass 68:0847e35d08a6 1593 }
tass 68:0847e35d08a6 1594 break;
tass 68:0847e35d08a6 1595
tass 68:0847e35d08a6 1596 case PICO_IP_ADD_MEMBERSHIP:
tass 68:0847e35d08a6 1597 /* EXCLUDE mode */
tass 68:0847e35d08a6 1598 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1599 int filter_mode;
tass 74:c146c4e346c4 1600 struct pico_mcast_listen *listen;
tass 74:c146c4e346c4 1601 struct pico_ip_mreq *mreq = (struct pico_ip_mreq *)value;
tass 74:c146c4e346c4 1602 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 1, 0);
tass 74:c146c4e346c4 1603 if (!mcast_link)
tass 68:0847e35d08a6 1604 return -1;
tass 74:c146c4e346c4 1605 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1606 if (listen) {
tass 68:0847e35d08a6 1607 if (listen->filter_mode != PICO_IP_MULTICAST_EXCLUDE) {
tass 68:0847e35d08a6 1608 so_mcast_dbg("pico_socket_setoption: ERROR any-source multicast (exclude) on source-specific multicast (include)\n");
tass 68:0847e35d08a6 1609 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1610 return -1;
tass 68:0847e35d08a6 1611 } else {
tass 68:0847e35d08a6 1612 so_mcast_dbg("pico_socket_setoption: ERROR duplicate PICO_IP_ADD_MEMBERSHIP\n");
tass 68:0847e35d08a6 1613 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1614 return -1;
tass 68:0847e35d08a6 1615 }
tass 68:0847e35d08a6 1616 } else {
tass 68:0847e35d08a6 1617 listen = pico_zalloc(sizeof(struct pico_mcast_listen));
tass 68:0847e35d08a6 1618 if (!listen) {
tass 68:0847e35d08a6 1619 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1620 return -1;
tass 68:0847e35d08a6 1621 }
tass 68:0847e35d08a6 1622 listen->filter_mode = PICO_IP_MULTICAST_EXCLUDE;
tass 68:0847e35d08a6 1623 listen->mcast_link = mreq->mcast_link_addr;
tass 68:0847e35d08a6 1624 listen->mcast_group = mreq->mcast_group_addr;
tass 68:0847e35d08a6 1625 listen->MCASTSources.root = &LEAF;
tass 68:0847e35d08a6 1626 listen->MCASTSources.compare = mcast_sources_cmp;
tass 68:0847e35d08a6 1627 pico_tree_insert(s->MCASTListen, listen);
tass 68:0847e35d08a6 1628 }
tass 68:0847e35d08a6 1629
tass 68:0847e35d08a6 1630 pico_tree_insert(&MCASTSockets, s);
tass 68:0847e35d08a6 1631 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1632 if (filter_mode < 0)
tass 68:0847e35d08a6 1633 return -1;
tass 68:0847e35d08a6 1634
tass 70:cd218dd180e5 1635 return pico_ipv4_mcast_join(&mreq->mcast_link_addr, &mreq->mcast_group_addr, 1, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1636 }
tass 68:0847e35d08a6 1637 break;
tass 68:0847e35d08a6 1638
tass 68:0847e35d08a6 1639 case PICO_IP_DROP_MEMBERSHIP:
tass 68:0847e35d08a6 1640 /* EXCLUDE mode */
tass 68:0847e35d08a6 1641 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1642 int filter_mode = 0;
tass 74:c146c4e346c4 1643 struct pico_mcast_listen *listen;
tass 74:c146c4e346c4 1644 struct pico_ip_mreq *mreq = (struct pico_ip_mreq *)value;
tass 68:0847e35d08a6 1645 struct pico_ip4 *source = NULL;
tass 68:0847e35d08a6 1646 struct pico_tree_node *index, *_tmp;
tass 74:c146c4e346c4 1647 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 0, 0);
tass 74:c146c4e346c4 1648 if (!mcast_link)
tass 68:0847e35d08a6 1649 return -1;
tass 68:0847e35d08a6 1650
tass 74:c146c4e346c4 1651 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1652 if (!listen) {
tass 68:0847e35d08a6 1653 so_mcast_dbg("pico_socket_setoption: ERROR PICO_IP_DROP_MEMBERSHIP before PICO_IP_ADD_MEMBERSHIP/SOURCE_MEMBERSHIP\n");
tass 68:0847e35d08a6 1654 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1655 return -1;
tass 68:0847e35d08a6 1656 } else {
tass 68:0847e35d08a6 1657 pico_tree_foreach_safe(index, &listen->MCASTSources, _tmp)
tass 68:0847e35d08a6 1658 {
tass 68:0847e35d08a6 1659 source = index->keyValue;
tass 68:0847e35d08a6 1660 pico_tree_delete(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1661 pico_free(source);
tass 68:0847e35d08a6 1662 }
tass 68:0847e35d08a6 1663 pico_tree_delete(s->MCASTListen, listen);
tass 68:0847e35d08a6 1664 pico_free(listen);
tass 68:0847e35d08a6 1665 if (pico_tree_empty(s->MCASTListen)) {
tass 68:0847e35d08a6 1666 pico_free(s->MCASTListen);
tass 68:0847e35d08a6 1667 s->MCASTListen = NULL;
tass 68:0847e35d08a6 1668 pico_tree_delete(&MCASTSockets, s);
tass 68:0847e35d08a6 1669 }
tass 68:0847e35d08a6 1670 }
tass 68:0847e35d08a6 1671
tass 68:0847e35d08a6 1672 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1673 if (filter_mode < 0)
tass 68:0847e35d08a6 1674 return -1;
tass 68:0847e35d08a6 1675
tass 70:cd218dd180e5 1676 return pico_ipv4_mcast_leave(&mreq->mcast_link_addr, &mreq->mcast_group_addr, 1, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1677 }
tass 68:0847e35d08a6 1678 break;
tass 68:0847e35d08a6 1679
tass 68:0847e35d08a6 1680 case PICO_IP_UNBLOCK_SOURCE:
tass 68:0847e35d08a6 1681 /* EXCLUDE mode */
tass 68:0847e35d08a6 1682 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1683 int filter_mode = 0;
tass 74:c146c4e346c4 1684 struct pico_ip_mreq_source *mreq = (struct pico_ip_mreq_source *)value;
tass 74:c146c4e346c4 1685 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 1686 struct pico_ip4 *source = NULL, stest = {0};
tass 74:c146c4e346c4 1687 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 0, 1);
tass 74:c146c4e346c4 1688 if (!mcast_link)
tass 68:0847e35d08a6 1689 return -1;
tass 74:c146c4e346c4 1690 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1691 if (!listen) {
tass 68:0847e35d08a6 1692 so_mcast_dbg("pico_socket_setoption: ERROR PICO_IP_UNBLOCK_SOURCE before PICO_IP_ADD_MEMBERSHIP\n");
tass 68:0847e35d08a6 1693 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1694 return -1;
tass 68:0847e35d08a6 1695 } else {
tass 68:0847e35d08a6 1696 if (listen->filter_mode != PICO_IP_MULTICAST_EXCLUDE) {
tass 68:0847e35d08a6 1697 so_mcast_dbg("pico_socket_setoption: ERROR any-source multicast (exclude) on source-specific multicast (include)\n");
tass 68:0847e35d08a6 1698 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1699 return -1;
tass 68:0847e35d08a6 1700 }
tass 68:0847e35d08a6 1701 stest.addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1702 source = pico_tree_findKey(&listen->MCASTSources, &stest);
tass 68:0847e35d08a6 1703 if (!source) {
tass 68:0847e35d08a6 1704 so_mcast_dbg("pico_socket_setoption: ERROR address to unblock not in source list\n");
tass 68:0847e35d08a6 1705 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1706 return -1;
tass 68:0847e35d08a6 1707 } else {
tass 68:0847e35d08a6 1708 pico_tree_delete(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1709 pico_free(source);
tass 68:0847e35d08a6 1710 }
tass 68:0847e35d08a6 1711 }
tass 68:0847e35d08a6 1712
tass 68:0847e35d08a6 1713 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1714 if (filter_mode < 0)
tass 68:0847e35d08a6 1715 return -1;
tass 68:0847e35d08a6 1716
tass 70:cd218dd180e5 1717 return pico_ipv4_mcast_leave(&mreq->mcast_link_addr, &mreq->mcast_group_addr, 0, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1718 }
tass 68:0847e35d08a6 1719 break;
tass 68:0847e35d08a6 1720
tass 68:0847e35d08a6 1721 case PICO_IP_BLOCK_SOURCE:
tass 68:0847e35d08a6 1722 /* EXCLUDE mode */
tass 68:0847e35d08a6 1723 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1724 int filter_mode = 0;
tass 74:c146c4e346c4 1725 struct pico_ip_mreq_source *mreq = (struct pico_ip_mreq_source *)value;
tass 74:c146c4e346c4 1726 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 1727 struct pico_ip4 *source = NULL, stest = {0};
tass 74:c146c4e346c4 1728 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 0, 1);
tass 74:c146c4e346c4 1729 if (!mcast_link)
tass 68:0847e35d08a6 1730 return -1;
tass 74:c146c4e346c4 1731 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1732 if (!listen) {
tass 74:c146c4e346c4 1733 dbg("pico_socket_setoption: ERROR PICO_IP_BLOCK_SOURCE before PICO_IP_ADD_MEMBERSHIP\n");
tass 68:0847e35d08a6 1734 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1735 return -1;
tass 68:0847e35d08a6 1736 } else {
tass 68:0847e35d08a6 1737 if (listen->filter_mode != PICO_IP_MULTICAST_EXCLUDE) {
tass 68:0847e35d08a6 1738 so_mcast_dbg("pico_socket_setoption: ERROR any-source multicast (exclude) on source-specific multicast (include)\n");
tass 68:0847e35d08a6 1739 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1740 return -1;
tass 68:0847e35d08a6 1741 }
tass 68:0847e35d08a6 1742 stest.addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1743 source = pico_tree_findKey(&listen->MCASTSources, &stest);
tass 68:0847e35d08a6 1744 if (source) {
tass 68:0847e35d08a6 1745 so_mcast_dbg("pico_socket_setoption: ERROR address to block already in source list\n");
tass 68:0847e35d08a6 1746 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1747 return -1;
tass 68:0847e35d08a6 1748 } else {
tass 68:0847e35d08a6 1749 source = pico_zalloc(sizeof(struct pico_ip4));
tass 68:0847e35d08a6 1750 if (!source) {
tass 68:0847e35d08a6 1751 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1752 return -1;
tass 68:0847e35d08a6 1753 }
tass 68:0847e35d08a6 1754 source->addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1755 pico_tree_insert(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1756 }
tass 68:0847e35d08a6 1757 }
tass 68:0847e35d08a6 1758
tass 68:0847e35d08a6 1759 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1760 if (filter_mode < 0)
tass 68:0847e35d08a6 1761 return -1;
tass 68:0847e35d08a6 1762
tass 70:cd218dd180e5 1763 return pico_ipv4_mcast_join(&mreq->mcast_link_addr, &mreq->mcast_group_addr, 0, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1764 }
tass 68:0847e35d08a6 1765 break;
tass 68:0847e35d08a6 1766
tass 68:0847e35d08a6 1767 case PICO_IP_ADD_SOURCE_MEMBERSHIP:
tass 68:0847e35d08a6 1768 /* INCLUDE mode */
tass 68:0847e35d08a6 1769 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1770 int filter_mode = 0, reference_count = 0;
tass 74:c146c4e346c4 1771 struct pico_ip_mreq_source *mreq = (struct pico_ip_mreq_source *)value;
tass 74:c146c4e346c4 1772 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 1773 struct pico_ip4 *source = NULL, stest = {0};
tass 74:c146c4e346c4 1774 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 1, 1);
tass 74:c146c4e346c4 1775 if (!mcast_link)
tass 68:0847e35d08a6 1776 return -1;
tass 74:c146c4e346c4 1777 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1778 if (listen) {
tass 68:0847e35d08a6 1779 if (listen->filter_mode != PICO_IP_MULTICAST_INCLUDE) {
tass 68:0847e35d08a6 1780 so_mcast_dbg("pico_socket_setoption: ERROR source-specific multicast (include) on any-source multicast (exclude)\n");
tass 68:0847e35d08a6 1781 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1782 return -1;
tass 68:0847e35d08a6 1783 }
tass 68:0847e35d08a6 1784 stest.addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1785 source = pico_tree_findKey(&listen->MCASTSources, &stest);
tass 68:0847e35d08a6 1786 if (source) {
tass 68:0847e35d08a6 1787 so_mcast_dbg("pico_socket_setoption: ERROR source address to allow already in source list\n");
tass 68:0847e35d08a6 1788 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1789 return -1;
tass 68:0847e35d08a6 1790 } else {
tass 68:0847e35d08a6 1791 source = pico_zalloc(sizeof(struct pico_ip4));
tass 68:0847e35d08a6 1792 if (!source) {
tass 68:0847e35d08a6 1793 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1794 return -1;
tass 68:0847e35d08a6 1795 }
tass 68:0847e35d08a6 1796 source->addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1797 pico_tree_insert(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1798 }
tass 68:0847e35d08a6 1799 } else {
tass 68:0847e35d08a6 1800 listen = pico_zalloc(sizeof(struct pico_mcast_listen));
tass 68:0847e35d08a6 1801 if (!listen) {
tass 68:0847e35d08a6 1802 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1803 return -1;
tass 68:0847e35d08a6 1804 }
tass 68:0847e35d08a6 1805 listen->filter_mode = PICO_IP_MULTICAST_INCLUDE;
tass 68:0847e35d08a6 1806 listen->mcast_link = mreq->mcast_link_addr;
tass 68:0847e35d08a6 1807 listen->mcast_group = mreq->mcast_group_addr;
tass 68:0847e35d08a6 1808 listen->MCASTSources.root = &LEAF;
tass 68:0847e35d08a6 1809 listen->MCASTSources.compare = mcast_sources_cmp;
tass 68:0847e35d08a6 1810 source = pico_zalloc(sizeof(struct pico_ip4));
tass 68:0847e35d08a6 1811 if (!source) {
tass 68:0847e35d08a6 1812 pico_free(listen);
tass 68:0847e35d08a6 1813 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 1814 return -1;
tass 68:0847e35d08a6 1815 }
tass 68:0847e35d08a6 1816 source->addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1817 pico_tree_insert(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1818 pico_tree_insert(s->MCASTListen, listen);
tass 68:0847e35d08a6 1819 reference_count = 1;
tass 68:0847e35d08a6 1820 }
tass 68:0847e35d08a6 1821
tass 68:0847e35d08a6 1822 pico_tree_insert(&MCASTSockets, s);
tass 68:0847e35d08a6 1823 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1824 if (filter_mode < 0)
tass 68:0847e35d08a6 1825 return -1;
tass 68:0847e35d08a6 1826
tass 70:cd218dd180e5 1827 return pico_ipv4_mcast_join(&mreq->mcast_link_addr, &mreq->mcast_group_addr, (uint8_t)reference_count, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1828 }
tass 68:0847e35d08a6 1829 break;
tass 68:0847e35d08a6 1830
tass 68:0847e35d08a6 1831 case PICO_IP_DROP_SOURCE_MEMBERSHIP:
tass 68:0847e35d08a6 1832 /* INCLUDE mode */
tass 68:0847e35d08a6 1833 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1834 int filter_mode = 0, reference_count = 0;
tass 74:c146c4e346c4 1835 struct pico_ip_mreq_source *mreq = (struct pico_ip_mreq_source *)value;
tass 74:c146c4e346c4 1836 struct pico_mcast_listen *listen = NULL;
tass 68:0847e35d08a6 1837 struct pico_ip4 *source = NULL, stest = {0};
tass 74:c146c4e346c4 1838 struct pico_ipv4_link *mcast_link = setopt_multicast_check(s, value, 0, 1);
tass 74:c146c4e346c4 1839 if (!mcast_link)
tass 68:0847e35d08a6 1840 return -1;
tass 74:c146c4e346c4 1841 listen = listen_find(s, &mreq->mcast_link_addr, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1842 if (!listen) {
tass 68:0847e35d08a6 1843 so_mcast_dbg("pico_socket_setoption: ERROR PICO_IP_DROP_SOURCE_MEMBERSHIP before PICO_IP_ADD_SOURCE_MEMBERSHIP\n");
tass 68:0847e35d08a6 1844 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1845 return -1;
tass 68:0847e35d08a6 1846 } else {
tass 68:0847e35d08a6 1847 if (listen->filter_mode != PICO_IP_MULTICAST_INCLUDE) {
tass 68:0847e35d08a6 1848 so_mcast_dbg("pico_socket_setoption: ERROR source-specific multicast (include) on any-source multicast (exclude)\n");
tass 68:0847e35d08a6 1849 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1850 return -1;
tass 68:0847e35d08a6 1851 }
tass 68:0847e35d08a6 1852 stest.addr = mreq->mcast_source_addr.addr;
tass 68:0847e35d08a6 1853 source = pico_tree_findKey(&listen->MCASTSources, &stest);
tass 68:0847e35d08a6 1854 if (!source) {
tass 68:0847e35d08a6 1855 so_mcast_dbg("pico_socket_setoption: ERROR address to drop not in source list\n");
tass 68:0847e35d08a6 1856 pico_err = PICO_ERR_EADDRNOTAVAIL;
tass 68:0847e35d08a6 1857 return -1;
tass 68:0847e35d08a6 1858 } else {
tass 68:0847e35d08a6 1859 pico_tree_delete(&listen->MCASTSources, source);
tass 68:0847e35d08a6 1860 pico_free(source);
tass 68:0847e35d08a6 1861 if (pico_tree_empty(&listen->MCASTSources)) { /* 1 if empty, 0 otherwise */
tass 68:0847e35d08a6 1862 reference_count = 1;
tass 68:0847e35d08a6 1863 pico_tree_delete(s->MCASTListen, listen);
tass 68:0847e35d08a6 1864 pico_free(listen);
tass 68:0847e35d08a6 1865 if (pico_tree_empty(s->MCASTListen)) {
tass 68:0847e35d08a6 1866 pico_free(s->MCASTListen);
tass 68:0847e35d08a6 1867 s->MCASTListen = NULL;
tass 68:0847e35d08a6 1868 pico_tree_delete(&MCASTSockets, s);
tass 68:0847e35d08a6 1869 }
tass 68:0847e35d08a6 1870 }
tass 68:0847e35d08a6 1871 }
tass 68:0847e35d08a6 1872 }
tass 68:0847e35d08a6 1873
tass 68:0847e35d08a6 1874 filter_mode = pico_socket_aggregate_mcastfilters(&mcast_link->address, &mreq->mcast_group_addr);
tass 68:0847e35d08a6 1875 if (filter_mode < 0)
tass 68:0847e35d08a6 1876 return -1;
tass 68:0847e35d08a6 1877
tass 70:cd218dd180e5 1878 return pico_ipv4_mcast_leave(&mreq->mcast_link_addr, &mreq->mcast_group_addr, (uint8_t)reference_count, (uint8_t)filter_mode, &MCASTFilter);
tass 68:0847e35d08a6 1879 }
tass 68:0847e35d08a6 1880 break;
tass 68:0847e35d08a6 1881 #endif /* PICO_SUPPORT_MCAST */
tass 68:0847e35d08a6 1882
tass 68:0847e35d08a6 1883 default:
tass 68:0847e35d08a6 1884 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1885 return -1;
tass 68:0847e35d08a6 1886 }
tass 68:0847e35d08a6 1887
tass 68:0847e35d08a6 1888 if (pico_err != PICO_ERR_NOERR)
tass 68:0847e35d08a6 1889 return -1;
tass 68:0847e35d08a6 1890 else
tass 68:0847e35d08a6 1891 return 0;
tass 68:0847e35d08a6 1892 }
tass 68:0847e35d08a6 1893
tass 68:0847e35d08a6 1894 #define PICO_SOCKET_GETOPT(socket,index) ((socket->opt_flags & (1 << index)) != 0)
tass 68:0847e35d08a6 1895
tass 68:0847e35d08a6 1896 int pico_socket_getoption(struct pico_socket *s, int option, void *value)
tass 68:0847e35d08a6 1897 {
tass 68:0847e35d08a6 1898 if (!s || !value) {
tass 68:0847e35d08a6 1899 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1900 return -1;
tass 68:0847e35d08a6 1901 }
tass 68:0847e35d08a6 1902
tass 68:0847e35d08a6 1903 switch (option)
tass 68:0847e35d08a6 1904 {
tass 68:0847e35d08a6 1905 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1906 case PICO_TCP_NODELAY:
tass 68:0847e35d08a6 1907 if (s->proto->proto_number == PICO_PROTO_TCP)
tass 68:0847e35d08a6 1908 /* state of the NODELAY option */
tass 68:0847e35d08a6 1909 *(int *)value = PICO_SOCKET_GETOPT(s,PICO_SOCKET_OPT_TCPNODELAY);
tass 68:0847e35d08a6 1910 else
tass 68:0847e35d08a6 1911 *(int *)value = 0;
tass 68:0847e35d08a6 1912 break;
tass 68:0847e35d08a6 1913 #endif
tass 68:0847e35d08a6 1914
tass 68:0847e35d08a6 1915 #ifdef PICO_SUPPORT_MCAST
tass 68:0847e35d08a6 1916 case PICO_IP_MULTICAST_IF:
tass 68:0847e35d08a6 1917 pico_err = PICO_ERR_EOPNOTSUPP;
tass 68:0847e35d08a6 1918 return -1;
tass 68:0847e35d08a6 1919 break;
tass 68:0847e35d08a6 1920
tass 68:0847e35d08a6 1921 case PICO_IP_MULTICAST_TTL:
tass 68:0847e35d08a6 1922 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1923 pico_udp_get_mc_ttl(s, (uint8_t *) value);
tass 68:0847e35d08a6 1924 } else {
tass 68:0847e35d08a6 1925 *(uint8_t *)value = 0;
tass 68:0847e35d08a6 1926 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1927 return -1;
tass 68:0847e35d08a6 1928 }
tass 68:0847e35d08a6 1929 break;
tass 68:0847e35d08a6 1930
tass 68:0847e35d08a6 1931 case PICO_IP_MULTICAST_LOOP:
tass 68:0847e35d08a6 1932 if (s->proto->proto_number == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1933 *(uint8_t *)value = PICO_SOCKET_GETOPT(s,PICO_SOCKET_OPT_MULTICAST_LOOP);
tass 68:0847e35d08a6 1934 } else {
tass 68:0847e35d08a6 1935 *(uint8_t *)value = 0;
tass 68:0847e35d08a6 1936 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1937 return -1;
tass 68:0847e35d08a6 1938 }
tass 68:0847e35d08a6 1939 break;
tass 68:0847e35d08a6 1940 #endif /* PICO_SUPPORT_MCAST */
tass 68:0847e35d08a6 1941
tass 68:0847e35d08a6 1942 default:
tass 68:0847e35d08a6 1943 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1944 return -1;
tass 68:0847e35d08a6 1945 }
tass 68:0847e35d08a6 1946
tass 68:0847e35d08a6 1947 return 0;
tass 68:0847e35d08a6 1948 }
tass 68:0847e35d08a6 1949
tass 68:0847e35d08a6 1950
tass 68:0847e35d08a6 1951 int pico_socket_shutdown(struct pico_socket *s, int mode)
tass 68:0847e35d08a6 1952 {
tass 68:0847e35d08a6 1953 if (!s) {
tass 68:0847e35d08a6 1954 pico_err = PICO_ERR_EINVAL;
tass 68:0847e35d08a6 1955 return -1;
tass 68:0847e35d08a6 1956 } else {
tass 68:0847e35d08a6 1957 /* check if exists in tree */
tass 68:0847e35d08a6 1958 /* See task #178 */
tass 68:0847e35d08a6 1959 if (pico_check_socket(s) != 0) {
tass 68:0847e35d08a6 1960 pico_free(s); /* close socket after bind or connect failed */
tass 68:0847e35d08a6 1961 return 0;
tass 68:0847e35d08a6 1962 }
tass 68:0847e35d08a6 1963 }
tass 68:0847e35d08a6 1964
tass 68:0847e35d08a6 1965 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 1966 if (PROTO(s) == PICO_PROTO_UDP) {
tass 68:0847e35d08a6 1967 if (mode & PICO_SHUT_RDWR)
tass 68:0847e35d08a6 1968 pico_socket_alter_state(s, PICO_SOCKET_STATE_CLOSED, PICO_SOCKET_STATE_CLOSING |PICO_SOCKET_STATE_BOUND | PICO_SOCKET_STATE_CONNECTED, 0);
tass 68:0847e35d08a6 1969 else if (mode & PICO_SHUT_RD)
tass 68:0847e35d08a6 1970 pico_socket_alter_state(s, 0, PICO_SOCKET_STATE_BOUND, 0);
tass 68:0847e35d08a6 1971 }
tass 68:0847e35d08a6 1972 #endif
tass 68:0847e35d08a6 1973 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 1974 if (PROTO(s) == PICO_PROTO_TCP) {
tass 68:0847e35d08a6 1975 if(mode & PICO_SHUT_RDWR)
tass 76:938a140caf12 1976 {
tass 68:0847e35d08a6 1977 pico_socket_alter_state(s, PICO_SOCKET_STATE_SHUT_LOCAL | PICO_SOCKET_STATE_SHUT_REMOTE, 0, 0);
tass 76:938a140caf12 1978 pico_tcp_notify_closing(s);
tass 76:938a140caf12 1979 }
tass 68:0847e35d08a6 1980 else if (mode & PICO_SHUT_WR)
tass 68:0847e35d08a6 1981 pico_socket_alter_state(s, PICO_SOCKET_STATE_SHUT_LOCAL, 0, 0);
tass 68:0847e35d08a6 1982 else if (mode & PICO_SHUT_RD)
tass 68:0847e35d08a6 1983 pico_socket_alter_state(s, PICO_SOCKET_STATE_SHUT_REMOTE, 0, 0);
tass 68:0847e35d08a6 1984
tass 68:0847e35d08a6 1985 }
tass 68:0847e35d08a6 1986 #endif
tass 68:0847e35d08a6 1987 return 0;
tass 68:0847e35d08a6 1988 }
tass 68:0847e35d08a6 1989
tass 68:0847e35d08a6 1990 int pico_socket_close(struct pico_socket *s)
tass 68:0847e35d08a6 1991 {
tass 68:0847e35d08a6 1992 return pico_socket_shutdown(s, PICO_SHUT_RDWR);
tass 68:0847e35d08a6 1993 }
tass 68:0847e35d08a6 1994
tass 68:0847e35d08a6 1995 #ifdef PICO_SUPPORT_CRC
tass 68:0847e35d08a6 1996 static inline int pico_transport_crc_check(struct pico_frame *f)
tass 68:0847e35d08a6 1997 {
tass 68:0847e35d08a6 1998 struct pico_ipv4_hdr *net_hdr = (struct pico_ipv4_hdr *) f->net_hdr;
tass 68:0847e35d08a6 1999 struct pico_udp_hdr *udp_hdr = NULL;
tass 68:0847e35d08a6 2000 uint16_t checksum_invalid = 1;
tass 68:0847e35d08a6 2001
tass 68:0847e35d08a6 2002 switch (net_hdr->proto)
tass 68:0847e35d08a6 2003 {
tass 68:0847e35d08a6 2004 case PICO_PROTO_TCP:
tass 68:0847e35d08a6 2005 checksum_invalid = short_be(pico_tcp_checksum_ipv4(f));
tass 68:0847e35d08a6 2006 //dbg("TCP CRC validation == %u\n", checksum_invalid);
tass 68:0847e35d08a6 2007 if (checksum_invalid) {
tass 68:0847e35d08a6 2008 //dbg("TCP CRC: validation failed!\n");
tass 68:0847e35d08a6 2009 pico_frame_discard(f);
tass 68:0847e35d08a6 2010 return 0;
tass 68:0847e35d08a6 2011 }
tass 68:0847e35d08a6 2012 break;
tass 68:0847e35d08a6 2013
tass 68:0847e35d08a6 2014 case PICO_PROTO_UDP:
tass 68:0847e35d08a6 2015 udp_hdr = (struct pico_udp_hdr *) f->transport_hdr;
tass 68:0847e35d08a6 2016 if (short_be(udp_hdr->crc)) {
tass 68:0847e35d08a6 2017 checksum_invalid = short_be(pico_udp_checksum_ipv4(f));
tass 68:0847e35d08a6 2018 //dbg("UDP CRC validation == %u\n", checksum_invalid);
tass 68:0847e35d08a6 2019 if (checksum_invalid) {
tass 68:0847e35d08a6 2020 //dbg("UDP CRC: validation failed!\n");
tass 68:0847e35d08a6 2021 pico_frame_discard(f);
tass 68:0847e35d08a6 2022 return 0;
tass 68:0847e35d08a6 2023 }
tass 68:0847e35d08a6 2024 }
tass 68:0847e35d08a6 2025 break;
tass 68:0847e35d08a6 2026
tass 68:0847e35d08a6 2027 default:
tass 68:0847e35d08a6 2028 // Do nothing
tass 68:0847e35d08a6 2029 break;
tass 68:0847e35d08a6 2030 }
tass 68:0847e35d08a6 2031 return 1;
tass 68:0847e35d08a6 2032 }
tass 68:0847e35d08a6 2033 #else
tass 68:0847e35d08a6 2034 static inline int pico_transport_crc_check(struct pico_frame *f)
tass 68:0847e35d08a6 2035 {
tass 68:0847e35d08a6 2036 IGNORE_PARAMETER(f);
tass 68:0847e35d08a6 2037 return 1;
tass 68:0847e35d08a6 2038 }
tass 68:0847e35d08a6 2039 #endif /* PICO_SUPPORT_CRC */
tass 68:0847e35d08a6 2040
tass 68:0847e35d08a6 2041 int pico_transport_process_in(struct pico_protocol *self, struct pico_frame *f)
tass 68:0847e35d08a6 2042 {
tass 68:0847e35d08a6 2043 struct pico_trans *hdr = (struct pico_trans *) f->transport_hdr;
tass 68:0847e35d08a6 2044 int ret = 0;
tass 68:0847e35d08a6 2045
tass 68:0847e35d08a6 2046 if (!hdr) {
tass 68:0847e35d08a6 2047 pico_err = PICO_ERR_EFAULT;
tass 68:0847e35d08a6 2048 return -1;
tass 68:0847e35d08a6 2049 }
tass 68:0847e35d08a6 2050
tass 68:0847e35d08a6 2051 ret = pico_transport_crc_check(f);
tass 68:0847e35d08a6 2052 if (ret < 1)
tass 68:0847e35d08a6 2053 return ret;
tass 68:0847e35d08a6 2054 else
tass 68:0847e35d08a6 2055 ret = 0;
tass 68:0847e35d08a6 2056
tass 68:0847e35d08a6 2057 if ((hdr) && (pico_socket_deliver(self, f, hdr->dport) == 0))
tass 68:0847e35d08a6 2058 return ret;
tass 68:0847e35d08a6 2059
tass 68:0847e35d08a6 2060 if (!IS_BCAST(f)) {
tass 68:0847e35d08a6 2061 dbg("Socket not found... \n");
tass 68:0847e35d08a6 2062 pico_notify_socket_unreachable(f);
tass 68:0847e35d08a6 2063 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 2064 /* if tcp protocol send RST segment */
tass 68:0847e35d08a6 2065 //if (self->proto_number == PICO_PROTO_TCP)
tass 68:0847e35d08a6 2066 // pico_tcp_reply_rst(f);
tass 68:0847e35d08a6 2067 #endif
tass 68:0847e35d08a6 2068 ret = -1;
tass 68:0847e35d08a6 2069 pico_err = PICO_ERR_ENOENT;
tass 68:0847e35d08a6 2070 }
tass 68:0847e35d08a6 2071 pico_frame_discard(f);
tass 68:0847e35d08a6 2072 return ret;
tass 68:0847e35d08a6 2073 }
tass 68:0847e35d08a6 2074
tass 68:0847e35d08a6 2075 #define SL_LOOP_MIN 1
tass 68:0847e35d08a6 2076
tass 68:0847e35d08a6 2077
tass 95:f4ca916a26fe 2078 static int checkSocketSanity(struct pico_socket *s)
tass 95:f4ca916a26fe 2079 {
tass 95:f4ca916a26fe 2080
tass 95:f4ca916a26fe 2081 // checking for pending connections
tass 95:f4ca916a26fe 2082 if(TCP_STATE(s) == PICO_SOCKET_STATE_TCP_SYN_RECV)
tass 95:f4ca916a26fe 2083 if((uint32_t)(PICO_TIME_MS() - s->timestamp) >= PICO_SOCKET_BOUND_TIMEOUT){
tass 95:f4ca916a26fe 2084 s->parent->number_of_pending_conn--;
tass 95:f4ca916a26fe 2085 return -1;
tass 95:f4ca916a26fe 2086 }
tass 95:f4ca916a26fe 2087 if((uint32_t)(PICO_TIME_MS() - s->timestamp) >= PICO_SOCKET_TIMEOUT) {
tass 95:f4ca916a26fe 2088 // checking for hanging sockets
tass 95:f4ca916a26fe 2089 if( (TCP_STATE(s) != PICO_SOCKET_STATE_TCP_LISTEN) && (TCP_STATE(s) != PICO_SOCKET_STATE_TCP_ESTABLISHED ) )
tass 95:f4ca916a26fe 2090 return -1;
tass 95:f4ca916a26fe 2091 // if no activity, force the socket into closing state
tass 95:f4ca916a26fe 2092 if( TCP_STATE(s) == PICO_SOCKET_STATE_TCP_ESTABLISHED )
tass 95:f4ca916a26fe 2093 {
tass 95:f4ca916a26fe 2094 pico_socket_close(s);
tass 95:f4ca916a26fe 2095 s->timestamp = PICO_TIME_MS();
tass 95:f4ca916a26fe 2096 }
tass 95:f4ca916a26fe 2097 }
tass 95:f4ca916a26fe 2098 return 0;
tass 95:f4ca916a26fe 2099 }
tass 95:f4ca916a26fe 2100
tass 68:0847e35d08a6 2101 int pico_sockets_loop(int loop_score)
tass 68:0847e35d08a6 2102 {
tass 68:0847e35d08a6 2103 static struct pico_tree_node *index_udp, * index_tcp;
tass 68:0847e35d08a6 2104
tass 68:0847e35d08a6 2105 struct pico_sockport *start;
tass 68:0847e35d08a6 2106 struct pico_socket *s;
tass 68:0847e35d08a6 2107
tass 68:0847e35d08a6 2108 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 2109 struct pico_frame *f;
tass 68:0847e35d08a6 2110
tass 68:0847e35d08a6 2111 if (sp_udp == NULL)
tass 68:0847e35d08a6 2112 {
tass 68:0847e35d08a6 2113 index_udp = pico_tree_firstNode(UDPTable.root);
tass 68:0847e35d08a6 2114 sp_udp = index_udp->keyValue;
tass 68:0847e35d08a6 2115 }
tass 68:0847e35d08a6 2116
tass 68:0847e35d08a6 2117 /* init start node */
tass 68:0847e35d08a6 2118 start = sp_udp;
tass 68:0847e35d08a6 2119
tass 68:0847e35d08a6 2120 /* round-robin all transport protocols, break if traversed all protocols */
tass 68:0847e35d08a6 2121 while (loop_score > SL_LOOP_MIN && sp_udp != NULL) {
tass 68:0847e35d08a6 2122 struct pico_tree_node * index;
tass 68:0847e35d08a6 2123
tass 68:0847e35d08a6 2124 pico_tree_foreach(index,&sp_udp->socks){
tass 68:0847e35d08a6 2125 s = index->keyValue;
tass 68:0847e35d08a6 2126 f = pico_dequeue(&s->q_out);
tass 68:0847e35d08a6 2127 while (f && (loop_score > 0)) {
tass 68:0847e35d08a6 2128 pico_proto_udp.push(&pico_proto_udp, f);
tass 68:0847e35d08a6 2129 loop_score -= 1;
tass 68:0847e35d08a6 2130 f = pico_dequeue(&s->q_out);
tass 68:0847e35d08a6 2131 }
tass 68:0847e35d08a6 2132 }
tass 68:0847e35d08a6 2133
tass 68:0847e35d08a6 2134 index_udp = pico_tree_next(index_udp);
tass 68:0847e35d08a6 2135 sp_udp = index_udp->keyValue;
tass 68:0847e35d08a6 2136
tass 68:0847e35d08a6 2137 if (sp_udp == NULL)
tass 68:0847e35d08a6 2138 {
tass 68:0847e35d08a6 2139 index_udp = pico_tree_firstNode(UDPTable.root);
tass 68:0847e35d08a6 2140 sp_udp = index_udp->keyValue;
tass 68:0847e35d08a6 2141 }
tass 68:0847e35d08a6 2142 if (sp_udp == start)
tass 68:0847e35d08a6 2143 break;
tass 68:0847e35d08a6 2144 }
tass 68:0847e35d08a6 2145 #endif
tass 68:0847e35d08a6 2146
tass 68:0847e35d08a6 2147 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 2148 if (sp_tcp == NULL)
tass 68:0847e35d08a6 2149 {
tass 68:0847e35d08a6 2150 index_tcp = pico_tree_firstNode(TCPTable.root);
tass 68:0847e35d08a6 2151 sp_tcp = index_tcp->keyValue;
tass 68:0847e35d08a6 2152 }
tass 68:0847e35d08a6 2153
tass 68:0847e35d08a6 2154 /* init start node */
tass 68:0847e35d08a6 2155 start = sp_tcp;
tass 68:0847e35d08a6 2156
tass 68:0847e35d08a6 2157 while (loop_score > SL_LOOP_MIN && sp_tcp != NULL) {
tass 68:0847e35d08a6 2158 struct pico_tree_node * index = NULL, * safe_index = NULL;
tass 68:0847e35d08a6 2159 pico_tree_foreach_safe(index, &sp_tcp->socks,safe_index){
tass 68:0847e35d08a6 2160 s = index->keyValue;
tass 68:0847e35d08a6 2161 loop_score = pico_tcp_output(s, loop_score);
tass 68:0847e35d08a6 2162 if ((s->ev_pending) && s->wakeup) {
tass 68:0847e35d08a6 2163 s->wakeup(s->ev_pending, s);
tass 68:0847e35d08a6 2164 }
tass 68:0847e35d08a6 2165 if (loop_score <= 0) {
tass 68:0847e35d08a6 2166 loop_score = 0;
tass 68:0847e35d08a6 2167 break;
tass 68:0847e35d08a6 2168 }
tass 95:f4ca916a26fe 2169 if(checkSocketSanity(s) < 0)
tass 95:f4ca916a26fe 2170 {
tass 95:f4ca916a26fe 2171 pico_socket_del(s);
tass 95:f4ca916a26fe 2172 index_tcp = NULL; // forcing the restart of loop
tass 95:f4ca916a26fe 2173 sp_tcp = NULL;
tass 95:f4ca916a26fe 2174 break;
tass 68:0847e35d08a6 2175 }
tass 95:f4ca916a26fe 2176 }
tass 68:0847e35d08a6 2177
tass 68:0847e35d08a6 2178 /* check if RB_FOREACH ended, if not, break to keep the cur sp_tcp */
tass 95:f4ca916a26fe 2179 if (!index_tcp || (index && index->keyValue) )
tass 68:0847e35d08a6 2180 break;
tass 68:0847e35d08a6 2181
tass 68:0847e35d08a6 2182 index_tcp = pico_tree_next(index_tcp);
tass 68:0847e35d08a6 2183 sp_tcp = index_tcp->keyValue;
tass 68:0847e35d08a6 2184
tass 68:0847e35d08a6 2185 if (sp_tcp == NULL)
tass 68:0847e35d08a6 2186 {
tass 68:0847e35d08a6 2187 index_tcp = pico_tree_firstNode(TCPTable.root);
tass 68:0847e35d08a6 2188 sp_tcp = index_tcp->keyValue;
tass 68:0847e35d08a6 2189 }
tass 68:0847e35d08a6 2190 if (sp_tcp == start)
tass 68:0847e35d08a6 2191 break;
tass 68:0847e35d08a6 2192 }
tass 68:0847e35d08a6 2193 #endif
tass 68:0847e35d08a6 2194
tass 68:0847e35d08a6 2195 return loop_score;
tass 68:0847e35d08a6 2196 }
tass 68:0847e35d08a6 2197
tass 68:0847e35d08a6 2198
tass 70:cd218dd180e5 2199 struct pico_frame *pico_socket_frame_alloc(struct pico_socket *s, uint16_t len)
tass 68:0847e35d08a6 2200 {
tass 68:0847e35d08a6 2201 struct pico_frame *f = NULL;
tass 68:0847e35d08a6 2202
tass 68:0847e35d08a6 2203 #ifdef PICO_SUPPORT_IPV6
tass 68:0847e35d08a6 2204 if (IS_SOCK_IPV6(s))
tass 68:0847e35d08a6 2205 f = pico_proto_ipv6.alloc(&pico_proto_ipv6, len);
tass 68:0847e35d08a6 2206 #endif
tass 68:0847e35d08a6 2207
tass 68:0847e35d08a6 2208 #ifdef PICO_SUPPORT_IPV4
tass 68:0847e35d08a6 2209 if (IS_SOCK_IPV4(s))
tass 70:cd218dd180e5 2210 f = pico_proto_ipv4.alloc(&pico_proto_ipv4, (uint16_t)len);
tass 68:0847e35d08a6 2211 #endif
tass 68:0847e35d08a6 2212 if (!f) {
tass 68:0847e35d08a6 2213 pico_err = PICO_ERR_ENOMEM;
tass 68:0847e35d08a6 2214 return f;
tass 68:0847e35d08a6 2215 }
tass 68:0847e35d08a6 2216 f->payload = f->transport_hdr;
tass 68:0847e35d08a6 2217 f->payload_len = len;
tass 68:0847e35d08a6 2218 f->sock = s;
tass 68:0847e35d08a6 2219 return f;
tass 68:0847e35d08a6 2220 }
tass 68:0847e35d08a6 2221
tass 68:0847e35d08a6 2222 int pico_transport_error(struct pico_frame *f, uint8_t proto, int code)
tass 68:0847e35d08a6 2223 {
tass 68:0847e35d08a6 2224 int ret = -1;
tass 68:0847e35d08a6 2225 struct pico_trans *trans = (struct pico_trans*) f->transport_hdr;
tass 68:0847e35d08a6 2226 struct pico_sockport *port = NULL;
tass 68:0847e35d08a6 2227 struct pico_socket *s = NULL;
tass 68:0847e35d08a6 2228 switch (proto) {
tass 68:0847e35d08a6 2229
tass 68:0847e35d08a6 2230
tass 68:0847e35d08a6 2231 #ifdef PICO_SUPPORT_UDP
tass 68:0847e35d08a6 2232 case PICO_PROTO_UDP:
tass 68:0847e35d08a6 2233 port = pico_get_sockport(proto, trans->sport);
tass 68:0847e35d08a6 2234 break;
tass 68:0847e35d08a6 2235 #endif
tass 68:0847e35d08a6 2236
tass 68:0847e35d08a6 2237 #ifdef PICO_SUPPORT_TCP
tass 68:0847e35d08a6 2238 case PICO_PROTO_TCP:
tass 68:0847e35d08a6 2239 port = pico_get_sockport(proto, trans->sport);
tass 68:0847e35d08a6 2240 break;
tass 68:0847e35d08a6 2241 #endif
tass 68:0847e35d08a6 2242
tass 68:0847e35d08a6 2243 default:
tass 68:0847e35d08a6 2244 /* Protocol not available */
tass 68:0847e35d08a6 2245 ret = -1;
tass 68:0847e35d08a6 2246 }
tass 68:0847e35d08a6 2247 if (port) {
tass 68:0847e35d08a6 2248 struct pico_tree_node * index;
tass 68:0847e35d08a6 2249 ret = 0;
tass 68:0847e35d08a6 2250
tass 68:0847e35d08a6 2251 pico_tree_foreach(index,&port->socks) {
tass 68:0847e35d08a6 2252 s = index->keyValue;
tass 68:0847e35d08a6 2253 if (trans->dport == s->remote_port) {
tass 68:0847e35d08a6 2254 if (s->wakeup) {
tass 68:0847e35d08a6 2255 //dbg("SOCKET ERROR FROM ICMP NOTIFICATION. (icmp code= %d)\n\n", code);
tass 68:0847e35d08a6 2256 switch(code) {
tass 68:0847e35d08a6 2257 case PICO_ICMP_UNREACH_PROTOCOL:
tass 68:0847e35d08a6 2258 pico_err = PICO_ERR_EPROTO;
tass 68:0847e35d08a6 2259 break;
tass 68:0847e35d08a6 2260
tass 68:0847e35d08a6 2261 case PICO_ICMP_UNREACH_PORT:
tass 68:0847e35d08a6 2262 pico_err = PICO_ERR_ECONNREFUSED;
tass 68:0847e35d08a6 2263 break;
tass 68:0847e35d08a6 2264
tass 68:0847e35d08a6 2265 case PICO_ICMP_UNREACH_NET:
tass 68:0847e35d08a6 2266 case PICO_ICMP_UNREACH_NET_PROHIB:
tass 68:0847e35d08a6 2267 case PICO_ICMP_UNREACH_NET_UNKNOWN:
tass 68:0847e35d08a6 2268 pico_err = PICO_ERR_ENETUNREACH;
tass 68:0847e35d08a6 2269 break;
tass 68:0847e35d08a6 2270
tass 68:0847e35d08a6 2271 default:
tass 68:0847e35d08a6 2272 pico_err = PICO_ERR_EHOSTUNREACH;
tass 68:0847e35d08a6 2273 }
tass 68:0847e35d08a6 2274 s->wakeup(PICO_SOCK_EV_ERR, s);
tass 68:0847e35d08a6 2275 }
tass 68:0847e35d08a6 2276 break;
tass 68:0847e35d08a6 2277 }
tass 68:0847e35d08a6 2278 }
tass 68:0847e35d08a6 2279 }
tass 68:0847e35d08a6 2280 pico_frame_discard(f);
tass 68:0847e35d08a6 2281 return ret;
tass 68:0847e35d08a6 2282 }
tass 68:0847e35d08a6 2283 #endif
tass 68:0847e35d08a6 2284 #endif