mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-08-26 08:02:51 +00:00
udp SO_REUSE_RXTOALL: don't copy IP header in duplicated pbuf
This commit is contained in:
parent
2b9a132772
commit
5c0aab7bd5
@ -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 */
|
||||
|
Loading…
Reference in New Issue
Block a user