Daniele Lacamera
/
PicoTCP-Experimental_CDC_ECM_Branch
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Fork of
PicoTCP
by 
Daniele Lacamera
stack/pico_stack.c@40:c8ab0d2bba0b, 2013-07-16 (annotated)
- Committer:
- tass
- Date:
- Tue Jul 16 06:40:35 2013 +0000
- Revision:
- 40:c8ab0d2bba0b
- Parent:
- 10:dd7111d4279f
Added tcp patch, fixed memory leak, disabled nagle by default.
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| daniele | 10:dd7111d4279f | 1 | /********************************************************************* |
| daniele | 10:dd7111d4279f | 2 | PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved. |
| daniele | 10:dd7111d4279f | 3 | See LICENSE and COPYING for usage. |
| daniele | 10:dd7111d4279f | 4 | |
| daniele | 10:dd7111d4279f | 5 | . |
| daniele | 10:dd7111d4279f | 6 | |
| daniele | 10:dd7111d4279f | 7 | Authors: Daniele Lacamera |
| daniele | 10:dd7111d4279f | 8 | *********************************************************************/ |
| daniele | 10:dd7111d4279f | 9 | |
| daniele | 10:dd7111d4279f | 10 | |
| daniele | 10:dd7111d4279f | 11 | #include "pico_config.h" |
| daniele | 10:dd7111d4279f | 12 | #include "pico_frame.h" |
| daniele | 10:dd7111d4279f | 13 | #include "pico_device.h" |
| daniele | 10:dd7111d4279f | 14 | #include "pico_protocol.h" |
| daniele | 10:dd7111d4279f | 15 | #include "pico_stack.h" |
| daniele | 10:dd7111d4279f | 16 | #include "pico_addressing.h" |
| daniele | 10:dd7111d4279f | 17 | #include "pico_dns_client.h" |
| daniele | 10:dd7111d4279f | 18 | |
| daniele | 10:dd7111d4279f | 19 | #include "pico_eth.h" |
| daniele | 10:dd7111d4279f | 20 | #include "pico_arp.h" |
| daniele | 10:dd7111d4279f | 21 | #include "pico_ipv4.h" |
| daniele | 10:dd7111d4279f | 22 | #include "pico_ipv6.h" |
| daniele | 10:dd7111d4279f | 23 | #include "pico_icmp4.h" |
| daniele | 10:dd7111d4279f | 24 | #include "pico_igmp.h" |
| daniele | 10:dd7111d4279f | 25 | #include "pico_udp.h" |
| daniele | 10:dd7111d4279f | 26 | #include "pico_tcp.h" |
| daniele | 10:dd7111d4279f | 27 | #include "pico_socket.h" |
| daniele | 10:dd7111d4279f | 28 | #include "heap.h" |
| daniele | 10:dd7111d4279f | 29 | |
| daniele | 10:dd7111d4279f | 30 | #define IS_LIMITED_BCAST(f) ( ((struct pico_ipv4_hdr *) f->net_hdr)->dst.addr == PICO_IP4_BCAST ) |
| daniele | 10:dd7111d4279f | 31 | |
| daniele | 10:dd7111d4279f | 32 | #ifdef PICO_SUPPORT_MCAST |
| daniele | 10:dd7111d4279f | 33 | # define PICO_SIZE_MCAST 3 |
| daniele | 10:dd7111d4279f | 34 | const uint8_t PICO_ETHADDR_MCAST[6] = {0x01, 0x00, 0x5e, 0x00, 0x00, 0x00}; |
| daniele | 10:dd7111d4279f | 35 | #endif |
| daniele | 10:dd7111d4279f | 36 | |
| daniele | 10:dd7111d4279f | 37 | volatile unsigned long pico_tick; |
| daniele | 10:dd7111d4279f | 38 | volatile pico_err_t pico_err; |
| daniele | 10:dd7111d4279f | 39 | |
| daniele | 10:dd7111d4279f | 40 | static uint32_t _rand_seed; |
| daniele | 10:dd7111d4279f | 41 | |
| daniele | 10:dd7111d4279f | 42 | void pico_rand_feed(uint32_t feed) |
| daniele | 10:dd7111d4279f | 43 | { |
| daniele | 10:dd7111d4279f | 44 | if (!feed) |
| daniele | 10:dd7111d4279f | 45 | return; |
| daniele | 10:dd7111d4279f | 46 | _rand_seed *= 1664525; |
| daniele | 10:dd7111d4279f | 47 | _rand_seed += 1013904223; |
| daniele | 10:dd7111d4279f | 48 | _rand_seed ^= ~(feed); |
| daniele | 10:dd7111d4279f | 49 | } |
| daniele | 10:dd7111d4279f | 50 | |
| daniele | 10:dd7111d4279f | 51 | uint32_t pico_rand(void) |
| daniele | 10:dd7111d4279f | 52 | { |
| daniele | 10:dd7111d4279f | 53 | pico_rand_feed(pico_tick); |
| daniele | 10:dd7111d4279f | 54 | return _rand_seed; |
| daniele | 10:dd7111d4279f | 55 | } |
| daniele | 10:dd7111d4279f | 56 | |
| daniele | 10:dd7111d4279f | 57 | /* NOTIFICATIONS: distributed notifications for stack internal errors. |
| daniele | 10:dd7111d4279f | 58 | */ |
| daniele | 10:dd7111d4279f | 59 | |
| daniele | 10:dd7111d4279f | 60 | int pico_notify_socket_unreachable(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 61 | { |
| daniele | 10:dd7111d4279f | 62 | if (0) {} |
| daniele | 10:dd7111d4279f | 63 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 64 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 65 | pico_icmp4_port_unreachable(f); |
| daniele | 10:dd7111d4279f | 66 | } |
| daniele | 10:dd7111d4279f | 67 | #endif |
| daniele | 10:dd7111d4279f | 68 | #ifdef PICO_SUPPORT_ICMP6 |
| daniele | 10:dd7111d4279f | 69 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 70 | pico_icmp6_port_unreachable(f); |
| daniele | 10:dd7111d4279f | 71 | } |
| daniele | 10:dd7111d4279f | 72 | #endif |
| daniele | 10:dd7111d4279f | 73 | |
| daniele | 10:dd7111d4279f | 74 | return 0; |
| daniele | 10:dd7111d4279f | 75 | } |
| daniele | 10:dd7111d4279f | 76 | |
| daniele | 10:dd7111d4279f | 77 | int pico_notify_proto_unreachable(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 78 | { |
| daniele | 10:dd7111d4279f | 79 | if (0) {} |
| daniele | 10:dd7111d4279f | 80 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 81 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 82 | pico_icmp4_proto_unreachable(f); |
| daniele | 10:dd7111d4279f | 83 | } |
| daniele | 10:dd7111d4279f | 84 | #endif |
| daniele | 10:dd7111d4279f | 85 | #ifdef PICO_SUPPORT_ICMP6 |
| daniele | 10:dd7111d4279f | 86 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 87 | pico_icmp6_proto_unreachable(f); |
| daniele | 10:dd7111d4279f | 88 | } |
| daniele | 10:dd7111d4279f | 89 | #endif |
| daniele | 10:dd7111d4279f | 90 | return 0; |
| daniele | 10:dd7111d4279f | 91 | } |
| daniele | 10:dd7111d4279f | 92 | |
| daniele | 10:dd7111d4279f | 93 | int pico_notify_dest_unreachable(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 94 | { |
| daniele | 10:dd7111d4279f | 95 | if (0) {} |
| daniele | 10:dd7111d4279f | 96 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 97 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 98 | pico_icmp4_dest_unreachable(f); |
| daniele | 10:dd7111d4279f | 99 | } |
| daniele | 10:dd7111d4279f | 100 | #endif |
| daniele | 10:dd7111d4279f | 101 | #ifdef PICO_SUPPORT_ICMP6 |
| daniele | 10:dd7111d4279f | 102 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 103 | pico_icmp6_dest_unreachable(f); |
| daniele | 10:dd7111d4279f | 104 | } |
| daniele | 10:dd7111d4279f | 105 | #endif |
| daniele | 10:dd7111d4279f | 106 | return 0; |
| daniele | 10:dd7111d4279f | 107 | } |
| daniele | 10:dd7111d4279f | 108 | |
| daniele | 10:dd7111d4279f | 109 | int pico_notify_ttl_expired(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 110 | { |
| daniele | 10:dd7111d4279f | 111 | if (0) {} |
| daniele | 10:dd7111d4279f | 112 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 113 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 114 | pico_icmp4_ttl_expired(f); |
| daniele | 10:dd7111d4279f | 115 | } |
| daniele | 10:dd7111d4279f | 116 | #endif |
| daniele | 10:dd7111d4279f | 117 | #ifdef PICO_SUPPORT_ICMP6 |
| daniele | 10:dd7111d4279f | 118 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 119 | pico_icmp6_ttl_expired(f); |
| daniele | 10:dd7111d4279f | 120 | } |
| daniele | 10:dd7111d4279f | 121 | #endif |
| daniele | 10:dd7111d4279f | 122 | return 0; |
| daniele | 10:dd7111d4279f | 123 | } |
| daniele | 10:dd7111d4279f | 124 | |
| daniele | 10:dd7111d4279f | 125 | |
| daniele | 10:dd7111d4279f | 126 | /* Transport layer */ |
| daniele | 10:dd7111d4279f | 127 | int pico_transport_receive(struct pico_frame *f, uint8_t proto) |
| daniele | 10:dd7111d4279f | 128 | { |
| daniele | 10:dd7111d4279f | 129 | int ret = -1; |
| daniele | 10:dd7111d4279f | 130 | switch (proto) { |
| daniele | 10:dd7111d4279f | 131 | |
| daniele | 10:dd7111d4279f | 132 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 133 | case PICO_PROTO_ICMP4: |
| daniele | 10:dd7111d4279f | 134 | ret = pico_enqueue(pico_proto_icmp4.q_in, f); |
| daniele | 10:dd7111d4279f | 135 | break; |
| daniele | 10:dd7111d4279f | 136 | #endif |
| daniele | 10:dd7111d4279f | 137 | |
| daniele | 10:dd7111d4279f | 138 | #ifdef PICO_SUPPORT_IGMP |
| daniele | 10:dd7111d4279f | 139 | case PICO_PROTO_IGMP: |
| daniele | 10:dd7111d4279f | 140 | ret = pico_enqueue(pico_proto_igmp.q_in, f); |
| daniele | 10:dd7111d4279f | 141 | break; |
| daniele | 10:dd7111d4279f | 142 | #endif |
| daniele | 10:dd7111d4279f | 143 | |
| daniele | 10:dd7111d4279f | 144 | #ifdef PICO_SUPPORT_UDP |
| daniele | 10:dd7111d4279f | 145 | case PICO_PROTO_UDP: |
| daniele | 10:dd7111d4279f | 146 | ret = pico_enqueue(pico_proto_udp.q_in, f); |
| daniele | 10:dd7111d4279f | 147 | break; |
| daniele | 10:dd7111d4279f | 148 | #endif |
| daniele | 10:dd7111d4279f | 149 | |
| daniele | 10:dd7111d4279f | 150 | #ifdef PICO_SUPPORT_TCP |
| daniele | 10:dd7111d4279f | 151 | case PICO_PROTO_TCP: |
| daniele | 10:dd7111d4279f | 152 | ret = pico_enqueue(pico_proto_tcp.q_in, f); |
| daniele | 10:dd7111d4279f | 153 | break; |
| daniele | 10:dd7111d4279f | 154 | #endif |
| daniele | 10:dd7111d4279f | 155 | |
| daniele | 10:dd7111d4279f | 156 | default: |
| daniele | 10:dd7111d4279f | 157 | /* Protocol not available */ |
| daniele | 10:dd7111d4279f | 158 | dbg("pkt: no such protocol (%d)\n", proto); |
| daniele | 10:dd7111d4279f | 159 | pico_notify_proto_unreachable(f); |
| daniele | 10:dd7111d4279f | 160 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 161 | ret = -1; |
| daniele | 10:dd7111d4279f | 162 | } |
| daniele | 10:dd7111d4279f | 163 | return ret; |
| daniele | 10:dd7111d4279f | 164 | } |
| daniele | 10:dd7111d4279f | 165 | |
| daniele | 10:dd7111d4279f | 166 | int pico_transport_send(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 167 | { |
| daniele | 10:dd7111d4279f | 168 | if (!f || !f->sock || !f->sock->proto) { |
| daniele | 10:dd7111d4279f | 169 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 170 | return -1; |
| daniele | 10:dd7111d4279f | 171 | } |
| daniele | 10:dd7111d4279f | 172 | return f->sock->proto->push(f->sock->net, f); |
| daniele | 10:dd7111d4279f | 173 | } |
| daniele | 10:dd7111d4279f | 174 | |
| daniele | 10:dd7111d4279f | 175 | int pico_network_receive(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 176 | { |
| daniele | 10:dd7111d4279f | 177 | if (0) {} |
| daniele | 10:dd7111d4279f | 178 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 179 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 180 | pico_enqueue(pico_proto_ipv4.q_in, f); |
| daniele | 10:dd7111d4279f | 181 | } |
| daniele | 10:dd7111d4279f | 182 | #endif |
| daniele | 10:dd7111d4279f | 183 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 184 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 185 | pico_enqueue(pico_proto_ipv6.q_in, f); |
| daniele | 10:dd7111d4279f | 186 | } |
| daniele | 10:dd7111d4279f | 187 | #endif |
| daniele | 10:dd7111d4279f | 188 | else { |
| daniele | 10:dd7111d4279f | 189 | dbg("Network not found.\n"); |
| daniele | 10:dd7111d4279f | 190 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 191 | return -1; |
| daniele | 10:dd7111d4279f | 192 | } |
| daniele | 10:dd7111d4279f | 193 | return f->buffer_len; |
| daniele | 10:dd7111d4279f | 194 | } |
| daniele | 10:dd7111d4279f | 195 | |
| daniele | 10:dd7111d4279f | 196 | |
| daniele | 10:dd7111d4279f | 197 | /* Network layer: interface towards socket for frame sending */ |
| daniele | 10:dd7111d4279f | 198 | int pico_network_send(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 199 | { |
| daniele | 10:dd7111d4279f | 200 | if (!f || !f->sock || !f->sock->net) { |
| daniele | 10:dd7111d4279f | 201 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 202 | return -1; |
| daniele | 10:dd7111d4279f | 203 | } |
| daniele | 10:dd7111d4279f | 204 | return f->sock->net->push(f->sock->net, f); |
| daniele | 10:dd7111d4279f | 205 | } |
| daniele | 10:dd7111d4279f | 206 | |
| daniele | 10:dd7111d4279f | 207 | int pico_destination_is_local(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 208 | { |
| daniele | 10:dd7111d4279f | 209 | if (0) { } |
| daniele | 10:dd7111d4279f | 210 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 211 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 212 | struct pico_ipv4_hdr *hdr = (struct pico_ipv4_hdr *)f->net_hdr; |
| daniele | 10:dd7111d4279f | 213 | if (pico_ipv4_link_find(&hdr->dst)) |
| daniele | 10:dd7111d4279f | 214 | return 1; |
| daniele | 10:dd7111d4279f | 215 | } |
| daniele | 10:dd7111d4279f | 216 | #endif |
| daniele | 10:dd7111d4279f | 217 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 218 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 219 | } |
| daniele | 10:dd7111d4279f | 220 | #endif |
| daniele | 10:dd7111d4279f | 221 | return 0; |
| daniele | 10:dd7111d4279f | 222 | } |
| daniele | 10:dd7111d4279f | 223 | |
| daniele | 10:dd7111d4279f | 224 | int pico_source_is_local(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 225 | { |
| daniele | 10:dd7111d4279f | 226 | if (0) { } |
| daniele | 10:dd7111d4279f | 227 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 228 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 229 | struct pico_ipv4_hdr *hdr = (struct pico_ipv4_hdr *)f->net_hdr; |
| daniele | 10:dd7111d4279f | 230 | if (hdr->src.addr == PICO_IPV4_INADDR_ANY) |
| daniele | 10:dd7111d4279f | 231 | return 1; |
| daniele | 10:dd7111d4279f | 232 | if (pico_ipv4_link_find(&hdr->src)) |
| daniele | 10:dd7111d4279f | 233 | return 1; |
| daniele | 10:dd7111d4279f | 234 | } |
| daniele | 10:dd7111d4279f | 235 | #endif |
| daniele | 10:dd7111d4279f | 236 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 237 | else if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 238 | /* XXX */ |
| daniele | 10:dd7111d4279f | 239 | } |
| daniele | 10:dd7111d4279f | 240 | #endif |
| daniele | 10:dd7111d4279f | 241 | return 0; |
| daniele | 10:dd7111d4279f | 242 | |
| daniele | 10:dd7111d4279f | 243 | |
| daniele | 10:dd7111d4279f | 244 | } |
| daniele | 10:dd7111d4279f | 245 | |
| daniele | 10:dd7111d4279f | 246 | |
| daniele | 10:dd7111d4279f | 247 | /* DATALINK LEVEL: interface from network to the device |
| daniele | 10:dd7111d4279f | 248 | * and vice versa. |
| daniele | 10:dd7111d4279f | 249 | */ |
| daniele | 10:dd7111d4279f | 250 | |
| daniele | 10:dd7111d4279f | 251 | /* The pico_ethernet_receive() function is used by |
| daniele | 10:dd7111d4279f | 252 | * those devices supporting ETH in order to push packets up |
| daniele | 10:dd7111d4279f | 253 | * into the stack. |
| daniele | 10:dd7111d4279f | 254 | */ |
| daniele | 10:dd7111d4279f | 255 | int pico_ethernet_receive(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 256 | { |
| daniele | 10:dd7111d4279f | 257 | struct pico_eth_hdr *hdr; |
| daniele | 10:dd7111d4279f | 258 | if (!f || !f->dev || !f->datalink_hdr) |
| daniele | 10:dd7111d4279f | 259 | goto discard; |
| daniele | 10:dd7111d4279f | 260 | hdr = (struct pico_eth_hdr *) f->datalink_hdr; |
| daniele | 10:dd7111d4279f | 261 | if ( (memcmp(hdr->daddr, f->dev->eth->mac.addr, PICO_SIZE_ETH) != 0) && |
| daniele | 10:dd7111d4279f | 262 | #ifdef PICO_SUPPORT_MCAST |
| daniele | 10:dd7111d4279f | 263 | (memcmp(hdr->daddr, PICO_ETHADDR_MCAST, PICO_SIZE_MCAST) != 0) && |
| daniele | 10:dd7111d4279f | 264 | #endif |
| daniele | 10:dd7111d4279f | 265 | (memcmp(hdr->daddr, PICO_ETHADDR_ALL, PICO_SIZE_ETH) != 0) ) |
| daniele | 10:dd7111d4279f | 266 | goto discard; |
| daniele | 10:dd7111d4279f | 267 | |
| daniele | 10:dd7111d4279f | 268 | f->net_hdr = f->datalink_hdr + sizeof(struct pico_eth_hdr); |
| daniele | 10:dd7111d4279f | 269 | if (hdr->proto == PICO_IDETH_ARP) |
| daniele | 10:dd7111d4279f | 270 | return pico_arp_receive(f); |
| daniele | 10:dd7111d4279f | 271 | if ((hdr->proto == PICO_IDETH_IPV4) || (hdr->proto == PICO_IDETH_IPV6)) |
| daniele | 10:dd7111d4279f | 272 | return pico_network_receive(f); |
| daniele | 10:dd7111d4279f | 273 | discard: |
| daniele | 10:dd7111d4279f | 274 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 275 | return -1; |
| daniele | 10:dd7111d4279f | 276 | } |
| daniele | 10:dd7111d4279f | 277 | |
| daniele | 10:dd7111d4279f | 278 | static int destination_is_bcast(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 279 | { |
| daniele | 10:dd7111d4279f | 280 | if (!f) |
| daniele | 10:dd7111d4279f | 281 | return 0; |
| daniele | 10:dd7111d4279f | 282 | |
| daniele | 10:dd7111d4279f | 283 | if (IS_IPV6(f)) |
| daniele | 10:dd7111d4279f | 284 | return 0; |
| daniele | 10:dd7111d4279f | 285 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 286 | else { |
| daniele | 10:dd7111d4279f | 287 | struct pico_ipv4_hdr *hdr = (struct pico_ipv4_hdr *) f->net_hdr; |
| daniele | 10:dd7111d4279f | 288 | return pico_ipv4_is_broadcast(hdr->dst.addr); |
| daniele | 10:dd7111d4279f | 289 | } |
| daniele | 10:dd7111d4279f | 290 | #endif |
| daniele | 10:dd7111d4279f | 291 | return 0; |
| daniele | 10:dd7111d4279f | 292 | } |
| daniele | 10:dd7111d4279f | 293 | |
| daniele | 10:dd7111d4279f | 294 | #ifdef PICO_SUPPORT_MCAST |
| daniele | 10:dd7111d4279f | 295 | static int destination_is_mcast(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 296 | { |
| daniele | 10:dd7111d4279f | 297 | if (!f) |
| daniele | 10:dd7111d4279f | 298 | return 0; |
| daniele | 10:dd7111d4279f | 299 | |
| daniele | 10:dd7111d4279f | 300 | if (IS_IPV6(f)) |
| daniele | 10:dd7111d4279f | 301 | return 0; |
| daniele | 10:dd7111d4279f | 302 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 303 | else { |
| daniele | 10:dd7111d4279f | 304 | struct pico_ipv4_hdr *hdr = (struct pico_ipv4_hdr *) f->net_hdr; |
| daniele | 10:dd7111d4279f | 305 | return pico_ipv4_is_multicast(hdr->dst.addr); |
| daniele | 10:dd7111d4279f | 306 | } |
| daniele | 10:dd7111d4279f | 307 | #endif |
| daniele | 10:dd7111d4279f | 308 | return 0; |
| daniele | 10:dd7111d4279f | 309 | } |
| daniele | 10:dd7111d4279f | 310 | |
| daniele | 10:dd7111d4279f | 311 | static struct pico_eth *pico_ethernet_mcast_translate(struct pico_frame *f, uint8_t *pico_mcast_mac) |
| daniele | 10:dd7111d4279f | 312 | { |
| daniele | 10:dd7111d4279f | 313 | struct pico_ipv4_hdr *hdr = (struct pico_ipv4_hdr *) f->net_hdr; |
| daniele | 10:dd7111d4279f | 314 | |
| daniele | 10:dd7111d4279f | 315 | /* place 23 lower bits of IP in lower 23 bits of MAC */ |
| daniele | 10:dd7111d4279f | 316 | pico_mcast_mac[5] = (long_be(hdr->dst.addr) & 0x000000FF); |
| daniele | 10:dd7111d4279f | 317 | pico_mcast_mac[4] = (long_be(hdr->dst.addr) & 0x0000FF00) >> 8; |
| daniele | 10:dd7111d4279f | 318 | pico_mcast_mac[3] = (long_be(hdr->dst.addr) & 0x007F0000) >> 16; |
| daniele | 10:dd7111d4279f | 319 | |
| daniele | 10:dd7111d4279f | 320 | return (struct pico_eth *)pico_mcast_mac; |
| daniele | 10:dd7111d4279f | 321 | } |
| daniele | 10:dd7111d4279f | 322 | |
| daniele | 10:dd7111d4279f | 323 | |
| daniele | 10:dd7111d4279f | 324 | #endif /* PICO_SUPPORT_MCAST */ |
| daniele | 10:dd7111d4279f | 325 | |
| daniele | 10:dd7111d4279f | 326 | /* This is called by dev loop in order to ensure correct ethernet addressing. |
| daniele | 10:dd7111d4279f | 327 | * Returns 0 if the destination is unknown, and -1 if the packet is not deliverable |
| daniele | 10:dd7111d4279f | 328 | * due to ethernet addressing (i.e., no arp association was possible. |
| daniele | 10:dd7111d4279f | 329 | * |
| daniele | 10:dd7111d4279f | 330 | * Only IP packets must pass by this. ARP will always use direct dev->send() function, so |
| daniele | 10:dd7111d4279f | 331 | * we assume IP is used. |
| daniele | 10:dd7111d4279f | 332 | */ |
| daniele | 10:dd7111d4279f | 333 | int pico_ethernet_send(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 334 | { |
| daniele | 10:dd7111d4279f | 335 | struct pico_eth *dstmac = NULL; |
| tass | 40:c8ab0d2bba0b | 336 | int ret = -1; |
| daniele | 10:dd7111d4279f | 337 | |
| daniele | 10:dd7111d4279f | 338 | if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 339 | /*TODO: Neighbor solicitation */ |
| daniele | 10:dd7111d4279f | 340 | dstmac = NULL; |
| daniele | 10:dd7111d4279f | 341 | } |
| daniele | 10:dd7111d4279f | 342 | |
| daniele | 10:dd7111d4279f | 343 | else if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 344 | if (IS_BCAST(f) || destination_is_bcast(f)) { |
| daniele | 10:dd7111d4279f | 345 | dstmac = (struct pico_eth *) PICO_ETHADDR_ALL; |
| daniele | 10:dd7111d4279f | 346 | } |
| daniele | 10:dd7111d4279f | 347 | #ifdef PICO_SUPPORT_MCAST |
| daniele | 10:dd7111d4279f | 348 | else if (destination_is_mcast(f)) { |
| daniele | 10:dd7111d4279f | 349 | uint8_t pico_mcast_mac[6] = {0x01, 0x00, 0x5e, 0x00, 0x00, 0x00}; |
| daniele | 10:dd7111d4279f | 350 | dstmac = pico_ethernet_mcast_translate(f, pico_mcast_mac); |
| daniele | 10:dd7111d4279f | 351 | } |
| daniele | 10:dd7111d4279f | 352 | #endif |
| daniele | 10:dd7111d4279f | 353 | else { |
| daniele | 10:dd7111d4279f | 354 | dstmac = pico_arp_get(f); |
| daniele | 10:dd7111d4279f | 355 | if (!dstmac) |
| daniele | 10:dd7111d4279f | 356 | return 0; |
| daniele | 10:dd7111d4279f | 357 | } |
| daniele | 10:dd7111d4279f | 358 | /* This sets destination and source address, then pushes the packet to the device. */ |
| daniele | 10:dd7111d4279f | 359 | if (dstmac && (f->start > f->buffer) && ((f->start - f->buffer) >= PICO_SIZE_ETHHDR)) { |
| daniele | 10:dd7111d4279f | 360 | struct pico_eth_hdr *hdr; |
| daniele | 10:dd7111d4279f | 361 | f->start -= PICO_SIZE_ETHHDR; |
| daniele | 10:dd7111d4279f | 362 | f->len += PICO_SIZE_ETHHDR; |
| daniele | 10:dd7111d4279f | 363 | f->datalink_hdr = f->start; |
| daniele | 10:dd7111d4279f | 364 | hdr = (struct pico_eth_hdr *) f->datalink_hdr; |
| daniele | 10:dd7111d4279f | 365 | memcpy(hdr->saddr, f->dev->eth->mac.addr, PICO_SIZE_ETH); |
| daniele | 10:dd7111d4279f | 366 | memcpy(hdr->daddr, dstmac, PICO_SIZE_ETH); |
| daniele | 10:dd7111d4279f | 367 | hdr->proto = PICO_IDETH_IPV4; |
| daniele | 10:dd7111d4279f | 368 | if(!memcmp(hdr->daddr, hdr->saddr, PICO_SIZE_ETH)){ |
| daniele | 10:dd7111d4279f | 369 | dbg("sending out packet destined for our own mac\n"); |
| tass | 40:c8ab0d2bba0b | 370 | return pico_ethernet_receive(f); |
| daniele | 10:dd7111d4279f | 371 | }else if(IS_LIMITED_BCAST(f)){ |
| tass | 40:c8ab0d2bba0b | 372 | ret = pico_device_broadcast(f); |
| daniele | 10:dd7111d4279f | 373 | }else { |
| tass | 40:c8ab0d2bba0b | 374 | ret = f->dev->send(f->dev, f->start, f->len); |
| daniele | 10:dd7111d4279f | 375 | /* Frame is discarded after this return by the caller */ |
| daniele | 10:dd7111d4279f | 376 | } |
| tass | 40:c8ab0d2bba0b | 377 | |
| tass | 40:c8ab0d2bba0b | 378 | if(!ret) pico_frame_discard(f); |
| tass | 40:c8ab0d2bba0b | 379 | return ret; |
| daniele | 10:dd7111d4279f | 380 | } else { |
| daniele | 10:dd7111d4279f | 381 | return -1; |
| daniele | 10:dd7111d4279f | 382 | } |
| daniele | 10:dd7111d4279f | 383 | } /* End IPV4 ethernet addressing */ |
| daniele | 10:dd7111d4279f | 384 | return -1; |
| tass | 40:c8ab0d2bba0b | 385 | |
| daniele | 10:dd7111d4279f | 386 | } |
| daniele | 10:dd7111d4279f | 387 | |
| daniele | 10:dd7111d4279f | 388 | void pico_store_network_origin(void *src, struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 389 | { |
| daniele | 10:dd7111d4279f | 390 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 391 | struct pico_ip4 *ip4; |
| daniele | 10:dd7111d4279f | 392 | #endif |
| daniele | 10:dd7111d4279f | 393 | |
| daniele | 10:dd7111d4279f | 394 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 395 | struct pico_ip6 *ip6; |
| daniele | 10:dd7111d4279f | 396 | #endif |
| daniele | 10:dd7111d4279f | 397 | |
| daniele | 10:dd7111d4279f | 398 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 399 | if (IS_IPV4(f)) { |
| daniele | 10:dd7111d4279f | 400 | struct pico_ipv4_hdr *hdr; |
| daniele | 10:dd7111d4279f | 401 | hdr = (struct pico_ipv4_hdr *) f->net_hdr; |
| daniele | 10:dd7111d4279f | 402 | ip4 = (struct pico_ip4 *) src; |
| daniele | 10:dd7111d4279f | 403 | ip4->addr = hdr->src.addr; |
| daniele | 10:dd7111d4279f | 404 | } |
| daniele | 10:dd7111d4279f | 405 | #endif |
| daniele | 10:dd7111d4279f | 406 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 407 | if (IS_IPV6(f)) { |
| daniele | 10:dd7111d4279f | 408 | struct pico_ipv6_hdr *hdr; |
| daniele | 10:dd7111d4279f | 409 | hdr = (struct pico_ipv6_hdr *) f->net_hdr; |
| daniele | 10:dd7111d4279f | 410 | ip6 = (struct pico_ip6 *) src; |
| daniele | 10:dd7111d4279f | 411 | memcpy(ip6->addr, hdr->src.addr, PICO_SIZE_IP6); |
| daniele | 10:dd7111d4279f | 412 | } |
| daniele | 10:dd7111d4279f | 413 | #endif |
| daniele | 10:dd7111d4279f | 414 | } |
| daniele | 10:dd7111d4279f | 415 | |
| daniele | 10:dd7111d4279f | 416 | |
| daniele | 10:dd7111d4279f | 417 | /* LOWEST LEVEL: interface towards devices. */ |
| daniele | 10:dd7111d4279f | 418 | /* Device driver will call this function which returns immediately. |
| daniele | 10:dd7111d4279f | 419 | * Incoming packet will be processed later on in the dev loop. |
| daniele | 10:dd7111d4279f | 420 | */ |
| daniele | 10:dd7111d4279f | 421 | int pico_stack_recv(struct pico_device *dev, uint8_t *buffer, int len) |
| daniele | 10:dd7111d4279f | 422 | { |
| daniele | 10:dd7111d4279f | 423 | struct pico_frame *f; |
| daniele | 10:dd7111d4279f | 424 | int ret; |
| daniele | 10:dd7111d4279f | 425 | if (len <= 0) |
| daniele | 10:dd7111d4279f | 426 | return -1; |
| daniele | 10:dd7111d4279f | 427 | f = pico_frame_alloc(len); |
| daniele | 10:dd7111d4279f | 428 | if (!f) |
| daniele | 10:dd7111d4279f | 429 | return -1; |
| daniele | 10:dd7111d4279f | 430 | |
| daniele | 10:dd7111d4279f | 431 | /* Association to the device that just received the frame. */ |
| daniele | 10:dd7111d4279f | 432 | f->dev = dev; |
| daniele | 10:dd7111d4279f | 433 | |
| daniele | 10:dd7111d4279f | 434 | /* Setup the start pointer, lenght. */ |
| daniele | 10:dd7111d4279f | 435 | f->start = f->buffer; |
| daniele | 10:dd7111d4279f | 436 | f->len = f->buffer_len; |
| daniele | 10:dd7111d4279f | 437 | if (f->len > 8) { |
| daniele | 10:dd7111d4279f | 438 | int mid_frame = (f->buffer_len >> 2)<<1; |
| daniele | 10:dd7111d4279f | 439 | mid_frame -= (mid_frame % 4); |
| daniele | 10:dd7111d4279f | 440 | pico_rand_feed(*(uint32_t*)(f->buffer + mid_frame)); |
| daniele | 10:dd7111d4279f | 441 | } |
| daniele | 10:dd7111d4279f | 442 | memcpy(f->buffer, buffer, len); |
| daniele | 10:dd7111d4279f | 443 | ret = pico_enqueue(dev->q_in, f); |
| daniele | 10:dd7111d4279f | 444 | if (ret <= 0) { |
| daniele | 10:dd7111d4279f | 445 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 446 | } |
| daniele | 10:dd7111d4279f | 447 | return ret; |
| daniele | 10:dd7111d4279f | 448 | } |
| daniele | 10:dd7111d4279f | 449 | |
| daniele | 10:dd7111d4279f | 450 | int pico_sendto_dev(struct pico_frame *f) |
| daniele | 10:dd7111d4279f | 451 | { |
| daniele | 10:dd7111d4279f | 452 | if (!f->dev) { |
| daniele | 10:dd7111d4279f | 453 | pico_frame_discard(f); |
| daniele | 10:dd7111d4279f | 454 | return -1; |
| daniele | 10:dd7111d4279f | 455 | } else { |
| daniele | 10:dd7111d4279f | 456 | if (f->len > 8) { |
| daniele | 10:dd7111d4279f | 457 | int mid_frame = (f->buffer_len >> 2)<<1; |
| daniele | 10:dd7111d4279f | 458 | mid_frame -= (mid_frame % 4); |
| daniele | 10:dd7111d4279f | 459 | pico_rand_feed(*(uint32_t*)(f->buffer + mid_frame)); |
| daniele | 10:dd7111d4279f | 460 | } |
| daniele | 10:dd7111d4279f | 461 | return pico_enqueue(f->dev->q_out, f); |
| daniele | 10:dd7111d4279f | 462 | } |
| daniele | 10:dd7111d4279f | 463 | } |
| daniele | 10:dd7111d4279f | 464 | |
| daniele | 10:dd7111d4279f | 465 | struct pico_timer |
| daniele | 10:dd7111d4279f | 466 | { |
| daniele | 10:dd7111d4279f | 467 | unsigned long expire; |
| daniele | 10:dd7111d4279f | 468 | void *arg; |
| daniele | 10:dd7111d4279f | 469 | void (*timer)(unsigned long timestamp, void *arg); |
| daniele | 10:dd7111d4279f | 470 | }; |
| daniele | 10:dd7111d4279f | 471 | |
| daniele | 10:dd7111d4279f | 472 | typedef struct pico_timer pico_timer; |
| daniele | 10:dd7111d4279f | 473 | |
| daniele | 10:dd7111d4279f | 474 | DECLARE_HEAP(pico_timer, expire); |
| daniele | 10:dd7111d4279f | 475 | |
| daniele | 10:dd7111d4279f | 476 | static heap_pico_timer *Timers; |
| daniele | 10:dd7111d4279f | 477 | |
| daniele | 10:dd7111d4279f | 478 | void pico_check_timers(void) |
| daniele | 10:dd7111d4279f | 479 | { |
| daniele | 10:dd7111d4279f | 480 | struct pico_timer timer; |
| daniele | 10:dd7111d4279f | 481 | struct pico_timer *t = heap_first(Timers); |
| daniele | 10:dd7111d4279f | 482 | pico_tick = PICO_TIME_MS(); |
| daniele | 10:dd7111d4279f | 483 | while((t) && (t->expire < pico_tick)) { |
| daniele | 10:dd7111d4279f | 484 | t->timer(pico_tick, t->arg); |
| daniele | 10:dd7111d4279f | 485 | heap_peek(Timers, &timer); |
| daniele | 10:dd7111d4279f | 486 | t = heap_first(Timers); |
| daniele | 10:dd7111d4279f | 487 | } |
| daniele | 10:dd7111d4279f | 488 | } |
| daniele | 10:dd7111d4279f | 489 | |
| daniele | 10:dd7111d4279f | 490 | |
| daniele | 10:dd7111d4279f | 491 | #define PROTO_DEF_NR 11 |
| daniele | 10:dd7111d4279f | 492 | #define PROTO_DEF_AVG_NR 4 |
| daniele | 10:dd7111d4279f | 493 | #define PROTO_DEF_SCORE 32 |
| daniele | 10:dd7111d4279f | 494 | #define PROTO_MIN_SCORE 32 |
| daniele | 10:dd7111d4279f | 495 | #define PROTO_MAX_SCORE 128 |
| daniele | 10:dd7111d4279f | 496 | #define PROTO_LAT_IND 3 /* latecy indication 0-3 (lower is better latency performance), x1, x2, x4, x8 */ |
| daniele | 10:dd7111d4279f | 497 | #define PROTO_MAX_LOOP (PROTO_MAX_SCORE<<PROTO_LAT_IND) /* max global loop score, so per tick */ |
| daniele | 10:dd7111d4279f | 498 | |
| daniele | 10:dd7111d4279f | 499 | static int calc_score(int *score, int *index, int avg[][PROTO_DEF_AVG_NR], int *ret) |
| daniele | 10:dd7111d4279f | 500 | { |
| daniele | 10:dd7111d4279f | 501 | int temp, i, j, sum; |
| daniele | 10:dd7111d4279f | 502 | int max_total = PROTO_MAX_LOOP, total = 0; |
| daniele | 10:dd7111d4279f | 503 | |
| daniele | 10:dd7111d4279f | 504 | //dbg("USED SCORES> "); |
| daniele | 10:dd7111d4279f | 505 | |
| daniele | 10:dd7111d4279f | 506 | for (i = 0; i < PROTO_DEF_NR; i++) { |
| daniele | 10:dd7111d4279f | 507 | |
| daniele | 10:dd7111d4279f | 508 | /* if used looped score */ |
| daniele | 10:dd7111d4279f | 509 | if (ret[i] < score[i]) { |
| daniele | 10:dd7111d4279f | 510 | temp = score[i] - ret[i]; /* remaining loop score */ |
| daniele | 10:dd7111d4279f | 511 | |
| daniele | 10:dd7111d4279f | 512 | //dbg("%3d - ",temp); |
| daniele | 10:dd7111d4279f | 513 | |
| daniele | 10:dd7111d4279f | 514 | if (index[i] >= PROTO_DEF_AVG_NR) |
| daniele | 10:dd7111d4279f | 515 | index[i] = 0; /* reset index */ |
| daniele | 10:dd7111d4279f | 516 | j = index[i]; |
| daniele | 10:dd7111d4279f | 517 | avg[i][j] = temp; |
| daniele | 10:dd7111d4279f | 518 | |
| daniele | 10:dd7111d4279f | 519 | index[i]++; |
| daniele | 10:dd7111d4279f | 520 | |
| daniele | 10:dd7111d4279f | 521 | if (ret[i] == 0 && (score[i]<<1 <= PROTO_MAX_SCORE) && ((total+(score[i]<<1)) < max_total) ) { /* used all loop score -> increase next score directly */ |
| daniele | 10:dd7111d4279f | 522 | score[i] <<= 1; |
| daniele | 10:dd7111d4279f | 523 | total += score[i]; |
| daniele | 10:dd7111d4279f | 524 | continue; |
| daniele | 10:dd7111d4279f | 525 | } |
| daniele | 10:dd7111d4279f | 526 | |
| daniele | 10:dd7111d4279f | 527 | sum = 0; |
| daniele | 10:dd7111d4279f | 528 | for (j = 0; j < PROTO_DEF_AVG_NR; j++) |
| daniele | 10:dd7111d4279f | 529 | sum += avg[i][j]; /* calculate sum */ |
| daniele | 10:dd7111d4279f | 530 | |
| daniele | 10:dd7111d4279f | 531 | sum >>= 2; /* divide by 4 to get average used score */ |
| daniele | 10:dd7111d4279f | 532 | |
| daniele | 10:dd7111d4279f | 533 | /* criterion to increase next loop score */ |
| daniele | 10:dd7111d4279f | 534 | if (sum > (score[i] - (score[i]>>2)) && (score[i]<<1 <= PROTO_MAX_SCORE) && ((total+(score[i]<<1)) < max_total)) { /* > 3/4 */ |
| daniele | 10:dd7111d4279f | 535 | score[i] <<= 1; /* double loop score */ |
| daniele | 10:dd7111d4279f | 536 | total += score[i]; |
| daniele | 10:dd7111d4279f | 537 | continue; |
| daniele | 10:dd7111d4279f | 538 | } |
| daniele | 10:dd7111d4279f | 539 | |
| daniele | 10:dd7111d4279f | 540 | /* criterion to decrease next loop score */ |
| daniele | 10:dd7111d4279f | 541 | if (sum < (score[i]>>2) && (score[i]>>1 >= PROTO_MIN_SCORE)) { /* < 1/4 */ |
| daniele | 10:dd7111d4279f | 542 | score[i] >>= 1; /* half loop score */ |
| daniele | 10:dd7111d4279f | 543 | total += score[i]; |
| daniele | 10:dd7111d4279f | 544 | continue; |
| daniele | 10:dd7111d4279f | 545 | } |
| daniele | 10:dd7111d4279f | 546 | |
| daniele | 10:dd7111d4279f | 547 | /* also add non-changed scores */ |
| daniele | 10:dd7111d4279f | 548 | total += score[i]; |
| daniele | 10:dd7111d4279f | 549 | } |
| daniele | 10:dd7111d4279f | 550 | else if (ret[i] == score[i]) { |
| daniele | 10:dd7111d4279f | 551 | /* no used loop score - gradually decrease */ |
| daniele | 10:dd7111d4279f | 552 | |
| daniele | 10:dd7111d4279f | 553 | // dbg("%3d - ",0); |
| daniele | 10:dd7111d4279f | 554 | |
| daniele | 10:dd7111d4279f | 555 | if (index[i] >= PROTO_DEF_AVG_NR) |
| daniele | 10:dd7111d4279f | 556 | index[i] = 0; /* reset index */ |
| daniele | 10:dd7111d4279f | 557 | j = index[i]; |
| daniele | 10:dd7111d4279f | 558 | avg[i][j] = 0; |
| daniele | 10:dd7111d4279f | 559 | |
| daniele | 10:dd7111d4279f | 560 | index[i]++; |
| daniele | 10:dd7111d4279f | 561 | |
| daniele | 10:dd7111d4279f | 562 | sum = 0; |
| daniele | 10:dd7111d4279f | 563 | for (j = 0; j < PROTO_DEF_AVG_NR; j++) |
| daniele | 10:dd7111d4279f | 564 | sum += avg[i][j]; /* calculate sum */ |
| daniele | 10:dd7111d4279f | 565 | |
| daniele | 10:dd7111d4279f | 566 | sum >>= 2; /* divide by 4 to get average used score */ |
| daniele | 10:dd7111d4279f | 567 | |
| daniele | 10:dd7111d4279f | 568 | if ((sum == 0) && (score[i]>>1 >= PROTO_MIN_SCORE)) { |
| daniele | 10:dd7111d4279f | 569 | score[i] >>= 1; /* half loop score */ |
| daniele | 10:dd7111d4279f | 570 | total += score[i]; |
| daniele | 10:dd7111d4279f | 571 | for (j = 0; j < PROTO_DEF_AVG_NR; j++) |
| daniele | 10:dd7111d4279f | 572 | avg[i][j] = score[i]; |
| daniele | 10:dd7111d4279f | 573 | } |
| daniele | 10:dd7111d4279f | 574 | |
| daniele | 10:dd7111d4279f | 575 | } |
| daniele | 10:dd7111d4279f | 576 | } |
| daniele | 10:dd7111d4279f | 577 | |
| daniele | 10:dd7111d4279f | 578 | //dbg("\n"); |
| daniele | 10:dd7111d4279f | 579 | |
| daniele | 10:dd7111d4279f | 580 | return 0; |
| daniele | 10:dd7111d4279f | 581 | } |
| daniele | 10:dd7111d4279f | 582 | |
| daniele | 10:dd7111d4279f | 583 | |
| daniele | 10:dd7111d4279f | 584 | |
| daniele | 10:dd7111d4279f | 585 | /* |
| daniele | 10:dd7111d4279f | 586 | |
| daniele | 10:dd7111d4279f | 587 | . |
| daniele | 10:dd7111d4279f | 588 | .vS. |
| daniele | 10:dd7111d4279f | 589 | <aoSo. |
| daniele | 10:dd7111d4279f | 590 | .XoS22. |
| daniele | 10:dd7111d4279f | 591 | .S2S22. ._... ...... ..._. |
| daniele | 10:dd7111d4279f | 592 | :=|2S2X2|=++; <vSX2XX2z+ |vSSSXSSs>. :iXXZUZXXe= |
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| daniele | 10:dd7111d4279f | 600 | .S2S22. .]2S2SS22S222S2SS2o( ]S22S2S2S222So :3XXZZZZZZZZXXv |
| daniele | 10:dd7111d4279f | 601 | .S2S22. =u2SS2e"~---"{2S2So( -"12S2S2SSS2Su. "?SXXXZXZZZZXo |
| daniele | 10:dd7111d4279f | 602 | .S2SSo. )SS22z; :S2S2o( ={vS2S2S22v .<vXZZZZZZZ; |
| daniele | 10:dd7111d4279f | 603 | .S2S2S: ]oSS2c; =22S2o( -"S2SS2n ~4XXZXZ( |
| daniele | 10:dd7111d4279f | 604 | .2S2S2i )2S2S2[. .)XS2So( <;. .2S2S2o :<. ]XZZZX( |
| daniele | 10:dd7111d4279f | 605 | nX2S2S,,_s_=3oSS2SoaasuXXS2S2o( .oXoasi_aioSSS22l.]dZoaas_aadXZZXZ' |
| daniele | 10:dd7111d4279f | 606 | vS2SSSXXX2; )S2S2S2SoS2S2S2S2o( iS2S222XSoSS22So.)nXZZXXXZZXXZZXZo |
| daniele | 10:dd7111d4279f | 607 | +32S22S2Sn -+S2S2S2S2So22S2So( 12S2SS2S2SS22S}- )SXXZZZZZZZZZXX!- |
| daniele | 10:dd7111d4279f | 608 | .)S22222i .i2S2S2o>;:S2S2o( .<vSoSoSo2S(; :nXXXXXZXXX( |
| daniele | 10:dd7111d4279f | 609 | .-~~~~- --- . - - --~~~-- --^^~~- |
| daniele | 10:dd7111d4279f | 610 | . |
| daniele | 10:dd7111d4279f | 611 | |
| daniele | 10:dd7111d4279f | 612 | |
| daniele | 10:dd7111d4279f | 613 | ... curious about our source code? We are hiring! mailto:<recruiting@tass.be> |
| daniele | 10:dd7111d4279f | 614 | |
| daniele | 10:dd7111d4279f | 615 | |
| daniele | 10:dd7111d4279f | 616 | */ |
| daniele | 10:dd7111d4279f | 617 | |
| daniele | 10:dd7111d4279f | 618 | void pico_stack_tick(void) |
| daniele | 10:dd7111d4279f | 619 | { |
| daniele | 10:dd7111d4279f | 620 | static int score[PROTO_DEF_NR] = {PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE, PROTO_DEF_SCORE}; |
| daniele | 10:dd7111d4279f | 621 | static int index[PROTO_DEF_NR] = {0,0,0,0,0,0}; |
| daniele | 10:dd7111d4279f | 622 | static int avg[PROTO_DEF_NR][PROTO_DEF_AVG_NR]; |
| daniele | 10:dd7111d4279f | 623 | static int ret[PROTO_DEF_NR] = {0}; |
| daniele | 10:dd7111d4279f | 624 | |
| daniele | 10:dd7111d4279f | 625 | pico_check_timers(); |
| daniele | 10:dd7111d4279f | 626 | |
| daniele | 10:dd7111d4279f | 627 | //dbg("LOOP_SCORES> %3d - %3d - %3d - %3d - %3d - %3d - %3d - %3d - %3d - %3d - %3d\n",score[0],score[1],score[2],score[3],score[4],score[5],score[6],score[7],score[8],score[9],score[10]); |
| daniele | 10:dd7111d4279f | 628 | |
| daniele | 10:dd7111d4279f | 629 | //score = pico_protocols_loop(100); |
| daniele | 10:dd7111d4279f | 630 | |
| daniele | 10:dd7111d4279f | 631 | ret[0] = pico_devices_loop(score[0],PICO_LOOP_DIR_IN); |
| daniele | 10:dd7111d4279f | 632 | pico_rand_feed(ret[0]); |
| daniele | 10:dd7111d4279f | 633 | |
| daniele | 10:dd7111d4279f | 634 | ret[1] = pico_protocol_datalink_loop(score[1], PICO_LOOP_DIR_IN); |
| daniele | 10:dd7111d4279f | 635 | pico_rand_feed(ret[1]); |
| daniele | 10:dd7111d4279f | 636 | |
| daniele | 10:dd7111d4279f | 637 | ret[2] = pico_protocol_network_loop(score[2], PICO_LOOP_DIR_IN); |
| daniele | 10:dd7111d4279f | 638 | pico_rand_feed(ret[2]); |
| daniele | 10:dd7111d4279f | 639 | |
| daniele | 10:dd7111d4279f | 640 | ret[3] = pico_protocol_transport_loop(score[3], PICO_LOOP_DIR_IN); |
| daniele | 10:dd7111d4279f | 641 | pico_rand_feed(ret[3]); |
| daniele | 10:dd7111d4279f | 642 | |
| daniele | 10:dd7111d4279f | 643 | |
| daniele | 10:dd7111d4279f | 644 | ret[5] = score[5]; |
| daniele | 10:dd7111d4279f | 645 | #if defined (PICO_SUPPORT_IPV4) || defined (PICO_SUPPORT_IPV6) |
| daniele | 10:dd7111d4279f | 646 | #if defined (PICO_SUPPORT_TCP) || defined (PICO_SUPPORT_UDP) |
| daniele | 10:dd7111d4279f | 647 | ret[5] = pico_sockets_loop(score[5]); // swapped |
| daniele | 10:dd7111d4279f | 648 | pico_rand_feed(ret[5]); |
| daniele | 10:dd7111d4279f | 649 | #endif |
| daniele | 10:dd7111d4279f | 650 | #endif |
| daniele | 10:dd7111d4279f | 651 | |
| daniele | 10:dd7111d4279f | 652 | ret[4] = pico_protocol_socket_loop(score[4], PICO_LOOP_DIR_IN); |
| daniele | 10:dd7111d4279f | 653 | pico_rand_feed(ret[4]); |
| daniele | 10:dd7111d4279f | 654 | |
| daniele | 10:dd7111d4279f | 655 | |
| daniele | 10:dd7111d4279f | 656 | ret[6] = pico_protocol_socket_loop(score[6], PICO_LOOP_DIR_OUT); |
| daniele | 10:dd7111d4279f | 657 | pico_rand_feed(ret[6]); |
| daniele | 10:dd7111d4279f | 658 | |
| daniele | 10:dd7111d4279f | 659 | ret[7] = pico_protocol_transport_loop(score[7], PICO_LOOP_DIR_OUT); |
| daniele | 10:dd7111d4279f | 660 | pico_rand_feed(ret[7]); |
| daniele | 10:dd7111d4279f | 661 | |
| daniele | 10:dd7111d4279f | 662 | ret[8] = pico_protocol_network_loop(score[8], PICO_LOOP_DIR_OUT); |
| daniele | 10:dd7111d4279f | 663 | pico_rand_feed(ret[8]); |
| daniele | 10:dd7111d4279f | 664 | |
| daniele | 10:dd7111d4279f | 665 | ret[9] = pico_protocol_datalink_loop(score[9], PICO_LOOP_DIR_OUT); |
| daniele | 10:dd7111d4279f | 666 | pico_rand_feed(ret[9]); |
| daniele | 10:dd7111d4279f | 667 | |
| daniele | 10:dd7111d4279f | 668 | ret[10] = pico_devices_loop(score[10],PICO_LOOP_DIR_OUT); |
| daniele | 10:dd7111d4279f | 669 | pico_rand_feed(ret[10]); |
| daniele | 10:dd7111d4279f | 670 | |
| daniele | 10:dd7111d4279f | 671 | /* calculate new loop scores for next iteration */ |
| daniele | 10:dd7111d4279f | 672 | calc_score(score, index,(int (*)[]) avg, ret); |
| daniele | 10:dd7111d4279f | 673 | } |
| daniele | 10:dd7111d4279f | 674 | |
| daniele | 10:dd7111d4279f | 675 | void pico_stack_loop(void) |
| daniele | 10:dd7111d4279f | 676 | { |
| daniele | 10:dd7111d4279f | 677 | while(1) { |
| daniele | 10:dd7111d4279f | 678 | pico_stack_tick(); |
| daniele | 10:dd7111d4279f | 679 | PICO_IDLE(); |
| daniele | 10:dd7111d4279f | 680 | } |
| daniele | 10:dd7111d4279f | 681 | } |
| daniele | 10:dd7111d4279f | 682 | |
| daniele | 10:dd7111d4279f | 683 | void pico_timer_add(unsigned long expire, void (*timer)(unsigned long, void *), void *arg) |
| daniele | 10:dd7111d4279f | 684 | { |
| daniele | 10:dd7111d4279f | 685 | pico_timer t; |
| daniele | 10:dd7111d4279f | 686 | t.expire = PICO_TIME_MS() + expire; |
| daniele | 10:dd7111d4279f | 687 | t.arg = arg; |
| daniele | 10:dd7111d4279f | 688 | t.timer = timer; |
| daniele | 10:dd7111d4279f | 689 | heap_insert(Timers, &t); |
| daniele | 10:dd7111d4279f | 690 | if (Timers->n > PICO_MAX_TIMERS) { |
| daniele | 10:dd7111d4279f | 691 | dbg("Warning: I have %d timers\n", Timers->n); |
| daniele | 10:dd7111d4279f | 692 | } |
| daniele | 10:dd7111d4279f | 693 | } |
| daniele | 10:dd7111d4279f | 694 | |
| daniele | 10:dd7111d4279f | 695 | void pico_stack_init(void) |
| daniele | 10:dd7111d4279f | 696 | { |
| daniele | 10:dd7111d4279f | 697 | |
| daniele | 10:dd7111d4279f | 698 | #ifdef PICO_SUPPORT_IPV4 |
| daniele | 10:dd7111d4279f | 699 | pico_protocol_init(&pico_proto_ipv4); |
| daniele | 10:dd7111d4279f | 700 | #endif |
| daniele | 10:dd7111d4279f | 701 | |
| daniele | 10:dd7111d4279f | 702 | #ifdef PICO_SUPPORT_IPV6 |
| daniele | 10:dd7111d4279f | 703 | pico_protocol_init(&pico_proto_ipv6); |
| daniele | 10:dd7111d4279f | 704 | #endif |
| daniele | 10:dd7111d4279f | 705 | |
| daniele | 10:dd7111d4279f | 706 | #ifdef PICO_SUPPORT_ICMP4 |
| daniele | 10:dd7111d4279f | 707 | pico_protocol_init(&pico_proto_icmp4); |
| daniele | 10:dd7111d4279f | 708 | #endif |
| daniele | 10:dd7111d4279f | 709 | |
| daniele | 10:dd7111d4279f | 710 | #ifdef PICO_SUPPORT_IGMP |
| daniele | 10:dd7111d4279f | 711 | pico_protocol_init(&pico_proto_igmp); |
| daniele | 10:dd7111d4279f | 712 | #endif |
| daniele | 10:dd7111d4279f | 713 | |
| daniele | 10:dd7111d4279f | 714 | #ifdef PICO_SUPPORT_UDP |
| daniele | 10:dd7111d4279f | 715 | pico_protocol_init(&pico_proto_udp); |
| daniele | 10:dd7111d4279f | 716 | #endif |
| daniele | 10:dd7111d4279f | 717 | |
| daniele | 10:dd7111d4279f | 718 | #ifdef PICO_SUPPORT_TCP |
| daniele | 10:dd7111d4279f | 719 | pico_protocol_init(&pico_proto_tcp); |
| daniele | 10:dd7111d4279f | 720 | #endif |
| daniele | 10:dd7111d4279f | 721 | |
| daniele | 10:dd7111d4279f | 722 | #ifdef PICO_SUPPORT_DNS_CLIENT |
| daniele | 10:dd7111d4279f | 723 | pico_dns_client_init(); |
| daniele | 10:dd7111d4279f | 724 | #endif |
| daniele | 10:dd7111d4279f | 725 | |
| daniele | 10:dd7111d4279f | 726 | pico_rand_feed(123456); |
| daniele | 10:dd7111d4279f | 727 | |
| daniele | 10:dd7111d4279f | 728 | /* Initialize timer heap */ |
| daniele | 10:dd7111d4279f | 729 | Timers = heap_init(); |
| daniele | 10:dd7111d4279f | 730 | pico_stack_tick(); |
| daniele | 10:dd7111d4279f | 731 | pico_stack_tick(); |
| daniele | 10:dd7111d4279f | 732 | pico_stack_tick(); |
| daniele | 10:dd7111d4279f | 733 | } |
| daniele | 10:dd7111d4279f | 734 |