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tcp_in: correct some loops continuing without maintaining a prev pointer.

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This problem would appear to have only affected systems with multiple
interfaces. It was noted causing tcp resets when the pcb was lost, and there
might have been other associated problems.

Signed-off-by: Dirk Ziegelmeier <dirk@ziegelmeier.net>
This commit is contained in:
Our Air Quality 2017-09-04 07:26:15 +10:00 committed by Dirk Ziegelmeier
parent 28e519b72d
commit dc7a9c8c37
1 changed files with 3 additions and 1 deletions
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4
src/core/tcp_in.c
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@ -247,6 +247,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
/* check if PCB is bound to specific netif */
if ((pcb->netif_idx != NETIF_NO_INDEX) &&
(pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) {
prev = pcb;
continue;
}
@ -304,6 +305,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
/* check if PCB is bound to specific netif */
if ((lpcb->netif_idx != NETIF_NO_INDEX) &&
(lpcb->netif_idx != netif_get_index(ip_data.current_input_netif))) {
prev = (struct tcp_pcb *)lpcb;
continue;
}
@ -327,7 +329,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
lpcb_prev = prev;
#else /* SO_REUSE */
break;
#endif /* SO_REUSE */
#endif /* SO_REUSE */
}
}
}