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tcp: make tcp_listen() inherit the netbuf_idx of the original pcb

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This simple patch causes tcp_listen() to inherit the netbuf_idx setting
of the original pcb. Without this, it is not possible to restrict a
socket to a specific interface using SO_BINDTODEVICE before listening.

Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This commit is contained in:
Oliver Hitz 2020-10-27 11:02:02 +01:00 committed by Simon Goldschmidt
parent 3666dcc66c
commit b5176936c7
1 changed files with 1 additions and 1 deletions
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2
src/core/tcp.c
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@ -890,7 +890,7 @@ tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err)
lpcb->state = LISTEN;
lpcb->prio = pcb->prio;
lpcb->so_options = pcb->so_options;
lpcb->netif_idx = NETIF_NO_INDEX;
lpcb->netif_idx = pcb->netif_idx;
lpcb->ttl = pcb->ttl;
lpcb->tos = pcb->tos;
#if LWIP_VLAN_PCP