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Print a warning if the BPF is not installed for an ARP socket.

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This commit is contained in:
Nicholas J. Kain 2014-04-04 03:55:32 -04:00
parent dc2ac46fd4
commit 2200b68aff
1 changed files with 3 additions and 0 deletions
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3
ndhc/arp.c
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@ -151,6 +151,9 @@ static void arp_set_bpf_basic(int fd)
}; };
using_arp_bpf = setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &sfp_arp, using_arp_bpf = setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &sfp_arp,
sizeof sfp_arp) != -1; sizeof sfp_arp) != -1;
if (!using_arp_bpf)
log_warning("%s: Failed to set BPF for ARP socket: %s",
client_config.interface, strerror(errno));
} }
static void arp_set_bpf_defense(struct client_state_t *cs, int fd) static void arp_set_bpf_defense(struct client_state_t *cs, int fd)