mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2025-01-27 12:35:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

udp SO_REUSE_RXTOALL: don't copy IP header in duplicated pbuf

Browse Source
This commit is contained in:
goldsimon 2017-05-03 09:54:46 +02:00
parent 2b9a132772
commit 5c0aab7bd5
1 changed files with 0 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/core/udp.c
View File

@ -359,8 +359,6 @@ udp_input(struct pbuf *p, struct netif *inp)
/* pass broadcast- or multicast packets to all multicast pcbs
if SOF_REUSEADDR is set on the first match */
struct udp_pcb *mpcb;
u8_t p_header_changed = 0;
s16_t hdrs_len = (s16_t)(ip_current_header_tot_len() + UDP_HLEN);
for (mpcb = udp_pcbs; mpcb != NULL; mpcb = mpcb->next) {
if (mpcb != pcb) {
/* compare PCB local addr+port to UDP destination addr+port */
@ -369,25 +367,14 @@ udp_input(struct pbuf *p, struct netif *inp)
/* pass a copy of the packet to all local matches */
if (mpcb->recv != NULL) {
struct pbuf *q;
/* for that, move payload to IP header again */
if (p_header_changed == 0) {
pbuf_header_force(p, hdrs_len);
p_header_changed = 1;
}
q = pbuf_clone(PBUF_RAW, PBUF_POOL, p);
if (q != NULL) {
/* move payload to UDP data */
pbuf_header(q, -hdrs_len);
mpcb->recv(mpcb->recv_arg, mpcb, q, ip_current_src_addr(), src);
}
}
}
}
}
if (p_header_changed) {
/* and move payload to UDP data again */
pbuf_header(p, -hdrs_len);
}
}
#endif /* SO_REUSE && SO_REUSE_RXTOALL */
/* callback */