Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Fork of
OmniWheels
by 
Gustav Atmel
lwip_ip6_frag.c File Reference
IPv6 fragmentation and reassembly. More...
Go to the source code of this file.
Functions | |
| static void | ip6_reass_free_complete_datagram (struct ip6_reassdata *ipr) |
| Free a datagram (struct ip6_reassdata) and all its pbufs. | |
| static void | ip6_reass_remove_oldest_datagram (struct ip6_reassdata *ipr, int pbufs_needed) |
| Free the oldest datagram to make room for enqueueing new fragments. | |
| struct pbuf * | ip6_reass (struct pbuf *p) |
| Reassembles incoming IPv6 fragments into an IPv6 datagram. | |
| static struct pbuf_custom_ref * | ip6_frag_alloc_pbuf_custom_ref (void) |
| Allocate a new struct pbuf_custom_ref. | |
| static void | ip6_frag_free_pbuf_custom_ref (struct pbuf_custom_ref *p) |
| Free a struct pbuf_custom_ref. | |
| static void | ip6_frag_free_pbuf_custom (struct pbuf *p) |
| Free-callback function to free a 'struct pbuf_custom_ref', called by pbuf_free. | |
| err_t | ip6_frag (struct pbuf *p, struct netif *netif, const ip6_addr_t *dest) |
| Fragment an IPv6 datagram if too large for the netif or path MTU. | |
Detailed Description
IPv6 fragmentation and reassembly.
Definition in file lwip_ip6_frag.c.
Function Documentation
| err_t ip6_frag | ( | struct pbuf * | p, |
| struct netif * | netif, | ||
| const ip6_addr_t * | dest | ||
| ) |
Fragment an IPv6 datagram if too large for the netif or path MTU.
Chop the datagram in MTU sized chunks and send them in order by pointing PBUF_REFs into p
- Parameters:
-
p ipv6 packet to send netif the netif on which to send dest destination ipv6 address to which to send
- Returns:
- ERR_OK if sent successfully, err_t otherwise
Definition at line 660 of file lwip_ip6_frag.c.
| static struct pbuf_custom_ref* ip6_frag_alloc_pbuf_custom_ref | ( | void | ) | [static, read] |
Allocate a new struct pbuf_custom_ref.
Definition at line 619 of file lwip_ip6_frag.c.
| static void ip6_frag_free_pbuf_custom | ( | struct pbuf * | p ) | [static] |
Free-callback function to free a 'struct pbuf_custom_ref', called by pbuf_free.
Definition at line 635 of file lwip_ip6_frag.c.
| static void ip6_frag_free_pbuf_custom_ref | ( | struct pbuf_custom_ref * | p ) | [static] |
Free a struct pbuf_custom_ref.
Definition at line 626 of file lwip_ip6_frag.c.
Reassembles incoming IPv6 fragments into an IPv6 datagram.
- Parameters:
-
p points to the IPv6 Fragment Header
- Returns:
- NULL if reassembly is incomplete, pbuf pointing to IPv6 Header if reassembly is complete
Definition at line 259 of file lwip_ip6_frag.c.
| static void ip6_reass_free_complete_datagram | ( | struct ip6_reassdata * | ipr ) | [static] |
Free a datagram (struct ip6_reassdata) and all its pbufs.
Updates the total count of enqueued pbufs (ip6_reass_pbufcount), sends an ICMP time exceeded packet.
- Parameters:
-
ipr datagram to free
Definition at line 146 of file lwip_ip6_frag.c.
| static void ip6_reass_remove_oldest_datagram | ( | struct ip6_reassdata * | ipr, |
| int | pbufs_needed | ||
| ) | [static] |
Free the oldest datagram to make room for enqueueing new fragments.
The datagram ipr is not freed!
- Parameters:
-
ipr ip6_reassdata for the current fragment pbufs_needed number of pbufs needed to enqueue (used for freeing other datagrams if not enough space)
Definition at line 223 of file lwip_ip6_frag.c.
Generated on Fri Jul 22 2022 04:54:07 by
1.7.2