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dhcp_snoop: Make IPv4 addresses human readable in debug log

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Use standard numbers-and-dots format for IPv4 in debug logs instead
of hexdump in two different byte orders.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-01-30 18:38:47 +02:00 committed by Jouni Malinen
parent 3a4bace428
commit a565e03086
1 changed files with 16 additions and 4 deletions
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20
src/ap/dhcp_snoop.c
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@ -42,6 +42,17 @@ struct bootp_pkt {
static const u8 ic_bootp_cookie[] = { 99, 130, 83, 99 }; static const u8 ic_bootp_cookie[] = { 99, 130, 83, 99 };
static const char * ipaddr_str(u32 addr)
{
static char buf[17];
os_snprintf(buf, sizeof(buf), "%u.%u.%u.%u",
(addr >> 24) & 0xff, (addr >> 16) & 0xff,
(addr >> 8) & 0xff, addr & 0xff);
return buf;
}
static void handle_dhcp(void *ctx, const u8 *src_addr, const u8 *buf, static void handle_dhcp(void *ctx, const u8 *src_addr, const u8 *buf,
size_t len) size_t len)
{ {
@ -109,16 +120,17 @@ static void handle_dhcp(void *ctx, const u8 *src_addr, const u8 *buf,
return; return;
wpa_printf(MSG_DEBUG, "dhcp_snoop: Found DHCPACK for " MACSTR wpa_printf(MSG_DEBUG, "dhcp_snoop: Found DHCPACK for " MACSTR
" @ IPv4 address %X/%d", " @ IPv4 address %s/%d",
MAC2STR(sta->addr), ntohl(b->your_ip), prefixlen); MAC2STR(sta->addr), ipaddr_str(ntohl(b->your_ip)),
prefixlen);
if (sta->ipaddr == b->your_ip) if (sta->ipaddr == b->your_ip)
return; return;
if (sta->ipaddr != 0) { if (sta->ipaddr != 0) {
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"dhcp_snoop: Removing IPv4 address %X from the ip neigh table", "dhcp_snoop: Removing IPv4 address %s from the ip neigh table",
sta->ipaddr); ipaddr_str(be_to_host32(sta->ipaddr)));
hostapd_drv_br_delete_ip_neigh(hapd, 4, hostapd_drv_br_delete_ip_neigh(hapd, 4,
(u8 *) &sta->ipaddr); (u8 *) &sta->ipaddr);
} }