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lwip: Drop packets larger than MTU

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This commit is contained in:
xiehang
2020-01-02 18:00:53 +08:00
parent c9e3b53c6f
commit b4eaf11fe5
1 changed files with 2 additions and 0 deletions
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src/core/ipv4/ip4.c
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@@ -1052,6 +1052,8 @@ ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *d
if (netif->mtu && (p->tot_len > netif->mtu)) {
return ip4_frag(p, netif, dest);
}
#else
LWIP_ERROR("ip4_output_if: Packets larger than MTU, discarded!!!",!(netif->mtu && p->tot_len > netif->mtu),return ERR_IF;);
#endif /* IP_FRAG */
LWIP_DEBUGF(IP_DEBUG, ("ip4_output_if: call netif->output()\n"));