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state.c: Print error messages if we fail to send DHCP packets.

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This commit is contained in:
Nicholas J. Kain 2014-04-15 17:59:15 -04:00
parent 18604c5245
commit b3ce601f20
1 changed files with 18 additions and 6 deletions
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24
src/state.c
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@ -124,7 +124,9 @@ static void set_released(struct client_state_t *cs)
static void requesting_timeout(struct client_state_t *cs, long long nowts) static void requesting_timeout(struct client_state_t *cs, long long nowts)
{ {
if (num_dhcp_requests < 5) { if (num_dhcp_requests < 5) {
send_selecting(cs); if (send_selecting(cs) < 0)
log_warning("%s: Failed to send a selecting request packet.",
client_config.interface);
dhcp_wake_ts = nowts + delay_timeout(cs, num_dhcp_requests); dhcp_wake_ts = nowts + delay_timeout(cs, num_dhcp_requests);
num_dhcp_requests++; num_dhcp_requests++;
} else } else
@ -159,7 +161,9 @@ static void renewing_timeout(struct client_state_t *cs, long long nowts)
dhcp_wake_ts = rbt; dhcp_wake_ts = rbt;
return; return;
} }
send_renew(cs); if (send_renew(cs) < 0)
log_warning("%s: Failed to send a renew request packet.",
client_config.interface);
dhcp_wake_ts = nowts + ((rbt - nowts) / 2); dhcp_wake_ts = nowts + ((rbt - nowts) / 2);
} else { } else {
cs->dhcpState = DS_REBINDING; cs->dhcpState = DS_REBINDING;
@ -179,7 +183,9 @@ static void rebinding_timeout(struct client_state_t *cs, long long nowts)
dhcp_wake_ts = elt; dhcp_wake_ts = elt;
return; return;
} }
send_rebind(cs); if (send_rebind(cs) < 0)
log_warning("%s: Failed to send a rebind request packet.",
client_config.interface);
dhcp_wake_ts = nowts + ((elt - nowts) / 2); dhcp_wake_ts = nowts + ((elt - nowts) / 2);
} else { } else {
log_line("%s: Lease expired. Searching for a new lease...", log_line("%s: Lease expired. Searching for a new lease...",
@ -318,7 +324,9 @@ static void selecting_timeout(struct client_state_t *cs, long long nowts)
} }
if (num_dhcp_requests == 0) if (num_dhcp_requests == 0)
cs->xid = nk_random_u32(&cs->rnd32_state); cs->xid = nk_random_u32(&cs->rnd32_state);
send_discover(cs); if (send_discover(cs) < 0)
log_warning("%s: Failed to send a discover request packet.",
client_config.interface);
dhcp_wake_ts = nowts + delay_timeout(cs, num_dhcp_requests); dhcp_wake_ts = nowts + delay_timeout(cs, num_dhcp_requests);
num_dhcp_requests++; num_dhcp_requests++;
} }
@ -333,7 +341,9 @@ static void xmit_release(struct client_state_t *cs)
svrbuf, sizeof svrbuf); svrbuf, sizeof svrbuf);
log_line("%s: Unicasting a release of %s to %s.", client_config.interface, log_line("%s: Unicasting a release of %s to %s.", client_config.interface,
clibuf, svrbuf); clibuf, svrbuf);
send_release(cs); if (send_release(cs) < 0)
log_warning("%s: Failed to send a release request packet.",
client_config.interface);
print_release(cs); print_release(cs);
} }
@ -349,7 +359,9 @@ static void frenew(struct client_state_t *cs)
log_line("%s: Forcing a DHCP renew...", client_config.interface); log_line("%s: Forcing a DHCP renew...", client_config.interface);
cs->dhcpState = DS_RENEWING; cs->dhcpState = DS_RENEWING;
set_listen_cooked(cs); set_listen_cooked(cs);
send_renew(cs); if (send_renew(cs) < 0)
log_warning("%s: Failed to send a renew request packet.",
client_config.interface);
} else if (cs->dhcpState == DS_RELEASED) } else if (cs->dhcpState == DS_RELEASED)
reinit_selecting(cs, 0); reinit_selecting(cs, 0);
} }