26 lines
940 B
C
26 lines
940 B
C
--- ospfd/packet.c.orig 9 Mar 2006 13:31:57 -0000 1.20
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+++ ospfd/packet.c 16 Mar 2006 18:21:38 -0000
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@@ -34,7 +34,7 @@
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#include "log.h"
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#include "ospfe.h"
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-int ip_hdr_sanity_check(const struct ip *, u_int16_t);
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+int ip_hdr_sanity_check(struct ip *, u_int16_t);
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int ospf_hdr_sanity_check(const struct ip *,
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struct ospf_hdr *, u_int16_t, const struct iface *);
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struct iface *find_iface(struct ospfd_conf *, struct in_addr);
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@@ -196,8 +196,13 @@ recv_packet(int fd, short event, void *b
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}
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int
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-ip_hdr_sanity_check(const struct ip *ip_hdr, u_int16_t len)
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+ip_hdr_sanity_check(struct ip *ip_hdr, u_int16_t len)
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{
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+#if defined(__NetBSD__) || defined(__FreeBSD__)
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+ /* FreeBSD and NetBSD modify the IP header. Undo it! */
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+ ip_hdr->ip_len = htons(ip_hdr->ip_len + (ip_hdr->ip_hl << 2));
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+#endif
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+
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if (ntohs(ip_hdr->ip_len) != len) {
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log_debug("recv_packet: invalid IP packet length %u",
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ntohs(ip_hdr->ip_len));
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