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function old new delta udhcpd_main 1431 1403 -28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
663 lines
21 KiB
C
663 lines
21 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* udhcp server
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* Copyright (C) 1999 Matthew Ramsay <matthewr@moreton.com.au>
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* Chris Trew <ctrew@moreton.com.au>
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*
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* Rewrite by Russ Dill <Russ.Dill@asu.edu> July 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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//usage:#define udhcpd_trivial_usage
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//usage: "[-fS]" IF_FEATURE_UDHCP_PORT(" [-P N]") " [CONFFILE]"
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//usage:#define udhcpd_full_usage "\n\n"
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//usage: "DHCP server\n"
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//usage: "\n -f Run in foreground"
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//usage: "\n -S Log to syslog too"
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//usage: IF_FEATURE_UDHCP_PORT(
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//usage: "\n -P N Use port N (default 67)"
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//usage: )
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#include <syslog.h>
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#include "common.h"
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#include "dhcpc.h"
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#include "dhcpd.h"
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/* Send a packet to a specific mac address and ip address by creating our own ip packet */
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static void send_packet_to_client(struct dhcp_packet *dhcp_pkt, int force_broadcast)
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{
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const uint8_t *chaddr;
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uint32_t ciaddr;
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// Was:
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//if (force_broadcast) { /* broadcast */ }
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//else if (dhcp_pkt->ciaddr) { /* unicast to dhcp_pkt->ciaddr */ }
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//else if (dhcp_pkt->flags & htons(BROADCAST_FLAG)) { /* broadcast */ }
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//else { /* unicast to dhcp_pkt->yiaddr */ }
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// But this is wrong: yiaddr is _our_ idea what client's IP is
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// (for example, from lease file). Client may not know that,
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// and may not have UDP socket listening on that IP!
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// We should never unicast to dhcp_pkt->yiaddr!
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// dhcp_pkt->ciaddr, OTOH, comes from client's request packet,
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// and can be used.
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if (force_broadcast
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|| (dhcp_pkt->flags & htons(BROADCAST_FLAG))
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|| dhcp_pkt->ciaddr == 0
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) {
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log1("Broadcasting packet to client");
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ciaddr = INADDR_BROADCAST;
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chaddr = MAC_BCAST_ADDR;
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} else {
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log1("Unicasting packet to client ciaddr");
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ciaddr = dhcp_pkt->ciaddr;
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chaddr = dhcp_pkt->chaddr;
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}
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udhcp_send_raw_packet(dhcp_pkt,
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/*src*/ server_config.server_nip, SERVER_PORT,
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/*dst*/ ciaddr, CLIENT_PORT, chaddr,
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server_config.ifindex);
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}
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/* Send a packet to gateway_nip using the kernel ip stack */
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static void send_packet_to_relay(struct dhcp_packet *dhcp_pkt)
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{
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log1("Forwarding packet to relay");
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udhcp_send_kernel_packet(dhcp_pkt,
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server_config.server_nip, SERVER_PORT,
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dhcp_pkt->gateway_nip, SERVER_PORT);
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}
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static void send_packet(struct dhcp_packet *dhcp_pkt, int force_broadcast)
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{
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if (dhcp_pkt->gateway_nip)
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send_packet_to_relay(dhcp_pkt);
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else
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send_packet_to_client(dhcp_pkt, force_broadcast);
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}
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static void init_packet(struct dhcp_packet *packet, struct dhcp_packet *oldpacket, char type)
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{
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/* Sets op, htype, hlen, cookie fields
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* and adds DHCP_MESSAGE_TYPE option */
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udhcp_init_header(packet, type);
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packet->xid = oldpacket->xid;
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memcpy(packet->chaddr, oldpacket->chaddr, sizeof(oldpacket->chaddr));
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packet->flags = oldpacket->flags;
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packet->gateway_nip = oldpacket->gateway_nip;
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packet->ciaddr = oldpacket->ciaddr;
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udhcp_add_simple_option(packet, DHCP_SERVER_ID, server_config.server_nip);
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}
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/* Fill options field, siaddr_nip, and sname and boot_file fields.
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* TODO: teach this code to use overload option.
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*/
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static void add_server_options(struct dhcp_packet *packet)
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{
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struct option_set *curr = server_config.options;
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while (curr) {
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if (curr->data[OPT_CODE] != DHCP_LEASE_TIME)
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udhcp_add_binary_option(packet, curr->data);
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curr = curr->next;
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}
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packet->siaddr_nip = server_config.siaddr_nip;
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if (server_config.sname)
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strncpy((char*)packet->sname, server_config.sname, sizeof(packet->sname) - 1);
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if (server_config.boot_file)
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strncpy((char*)packet->file, server_config.boot_file, sizeof(packet->file) - 1);
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}
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static uint32_t select_lease_time(struct dhcp_packet *packet)
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{
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uint32_t lease_time_sec = server_config.max_lease_sec;
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uint8_t *lease_time_opt = udhcp_get_option(packet, DHCP_LEASE_TIME);
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if (lease_time_opt) {
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move_from_unaligned32(lease_time_sec, lease_time_opt);
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lease_time_sec = ntohl(lease_time_sec);
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if (lease_time_sec > server_config.max_lease_sec)
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lease_time_sec = server_config.max_lease_sec;
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if (lease_time_sec < server_config.min_lease_sec)
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lease_time_sec = server_config.min_lease_sec;
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}
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return lease_time_sec;
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}
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/* We got a DHCP DISCOVER. Send an OFFER. */
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/* NOINLINE: limit stack usage in caller */
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static NOINLINE void send_offer(struct dhcp_packet *oldpacket,
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uint32_t static_lease_nip,
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struct dyn_lease *lease,
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uint8_t *requested_ip_opt)
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{
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struct dhcp_packet packet;
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uint32_t lease_time_sec;
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struct in_addr addr;
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init_packet(&packet, oldpacket, DHCPOFFER);
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/* If it is a static lease, use its IP */
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packet.yiaddr = static_lease_nip;
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/* Else: */
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if (!static_lease_nip) {
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/* We have no static lease for client's chaddr */
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uint32_t req_nip;
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const char *p_host_name;
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if (lease) {
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/* We have a dynamic lease for client's chaddr.
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* Reuse its IP (even if lease is expired).
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* Note that we ignore requested IP in this case.
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*/
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packet.yiaddr = lease->lease_nip;
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}
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/* Or: if client has requested an IP */
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else if (requested_ip_opt != NULL
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/* (read IP) */
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&& (move_from_unaligned32(req_nip, requested_ip_opt), 1)
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/* and the IP is in the lease range */
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&& ntohl(req_nip) >= server_config.start_ip
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&& ntohl(req_nip) <= server_config.end_ip
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/* and */
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&& ( !(lease = find_lease_by_nip(req_nip)) /* is not already taken */
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|| is_expired_lease(lease) /* or is taken, but expired */
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)
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) {
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packet.yiaddr = req_nip;
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}
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else {
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/* Otherwise, find a free IP */
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packet.yiaddr = find_free_or_expired_nip(oldpacket->chaddr);
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}
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if (!packet.yiaddr) {
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bb_error_msg("no free IP addresses. OFFER abandoned");
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return;
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}
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/* Reserve the IP for a short time hoping to get DHCPREQUEST soon */
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p_host_name = (const char*) udhcp_get_option(oldpacket, DHCP_HOST_NAME);
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lease = add_lease(packet.chaddr, packet.yiaddr,
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server_config.offer_time,
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p_host_name,
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p_host_name ? (unsigned char)p_host_name[OPT_LEN - OPT_DATA] : 0
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);
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if (!lease) {
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bb_error_msg("no free IP addresses. OFFER abandoned");
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return;
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}
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}
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lease_time_sec = select_lease_time(oldpacket);
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udhcp_add_simple_option(&packet, DHCP_LEASE_TIME, htonl(lease_time_sec));
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add_server_options(&packet);
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addr.s_addr = packet.yiaddr;
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bb_info_msg("Sending OFFER of %s", inet_ntoa(addr));
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/* send_packet emits error message itself if it detects failure */
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send_packet(&packet, /*force_bcast:*/ 0);
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}
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/* NOINLINE: limit stack usage in caller */
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static NOINLINE void send_NAK(struct dhcp_packet *oldpacket)
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{
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struct dhcp_packet packet;
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init_packet(&packet, oldpacket, DHCPNAK);
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log1("Sending NAK");
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send_packet(&packet, /*force_bcast:*/ 1);
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}
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/* NOINLINE: limit stack usage in caller */
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static NOINLINE void send_ACK(struct dhcp_packet *oldpacket, uint32_t yiaddr)
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{
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struct dhcp_packet packet;
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uint32_t lease_time_sec;
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struct in_addr addr;
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const char *p_host_name;
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init_packet(&packet, oldpacket, DHCPACK);
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packet.yiaddr = yiaddr;
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lease_time_sec = select_lease_time(oldpacket);
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udhcp_add_simple_option(&packet, DHCP_LEASE_TIME, htonl(lease_time_sec));
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add_server_options(&packet);
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addr.s_addr = yiaddr;
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bb_info_msg("Sending ACK to %s", inet_ntoa(addr));
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send_packet(&packet, /*force_bcast:*/ 0);
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p_host_name = (const char*) udhcp_get_option(oldpacket, DHCP_HOST_NAME);
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add_lease(packet.chaddr, packet.yiaddr,
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lease_time_sec,
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p_host_name,
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p_host_name ? (unsigned char)p_host_name[OPT_LEN - OPT_DATA] : 0
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);
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if (ENABLE_FEATURE_UDHCPD_WRITE_LEASES_EARLY) {
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/* rewrite the file with leases at every new acceptance */
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write_leases();
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}
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}
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/* NOINLINE: limit stack usage in caller */
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static NOINLINE void send_inform(struct dhcp_packet *oldpacket)
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{
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struct dhcp_packet packet;
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/* "If a client has obtained a network address through some other means
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* (e.g., manual configuration), it may use a DHCPINFORM request message
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* to obtain other local configuration parameters. Servers receiving a
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* DHCPINFORM message construct a DHCPACK message with any local
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* configuration parameters appropriate for the client without:
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* allocating a new address, checking for an existing binding, filling
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* in 'yiaddr' or including lease time parameters. The servers SHOULD
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* unicast the DHCPACK reply to the address given in the 'ciaddr' field
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* of the DHCPINFORM message.
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* ...
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* The server responds to a DHCPINFORM message by sending a DHCPACK
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* message directly to the address given in the 'ciaddr' field
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* of the DHCPINFORM message. The server MUST NOT send a lease
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* expiration time to the client and SHOULD NOT fill in 'yiaddr'."
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*/
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//TODO: do a few sanity checks: is ciaddr set?
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//Better yet: is ciaddr == IP source addr?
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init_packet(&packet, oldpacket, DHCPACK);
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add_server_options(&packet);
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send_packet(&packet, /*force_bcast:*/ 0);
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}
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/* globals */
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struct dyn_lease *g_leases;
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/* struct server_config_t server_config is in bb_common_bufsiz1 */
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int udhcpd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int udhcpd_main(int argc UNUSED_PARAM, char **argv)
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{
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int server_socket = -1, retval, max_sock;
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uint8_t *state;
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unsigned timeout_end;
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unsigned num_ips;
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unsigned opt;
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struct option_set *option;
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IF_FEATURE_UDHCP_PORT(char *str_P;)
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#if ENABLE_FEATURE_UDHCP_PORT
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SERVER_PORT = 67;
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CLIENT_PORT = 68;
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#endif
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#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
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opt_complementary = "vv";
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#endif
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opt = getopt32(argv, "fSv"
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IF_FEATURE_UDHCP_PORT("P:", &str_P)
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IF_UDHCP_VERBOSE(, &dhcp_verbose)
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);
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if (!(opt & 1)) { /* no -f */
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bb_daemonize_or_rexec(0, argv);
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logmode = LOGMODE_NONE;
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}
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/* update argv after the possible vfork+exec in daemonize */
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argv += optind;
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if (opt & 2) { /* -S */
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openlog(applet_name, LOG_PID, LOG_DAEMON);
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logmode |= LOGMODE_SYSLOG;
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}
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#if ENABLE_FEATURE_UDHCP_PORT
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if (opt & 8) { /* -P */
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SERVER_PORT = xatou16(str_P);
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CLIENT_PORT = SERVER_PORT + 1;
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}
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#endif
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/* Would rather not do read_config before daemonization -
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* otherwise NOMMU machines will parse config twice */
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read_config(argv[0] ? argv[0] : DHCPD_CONF_FILE);
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/* Make sure fd 0,1,2 are open */
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bb_sanitize_stdio();
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/* Equivalent of doing a fflush after every \n */
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setlinebuf(stdout);
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/* Create pidfile */
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write_pidfile(server_config.pidfile);
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/* if (!..) bb_perror_msg("can't create pidfile %s", pidfile); */
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bb_info_msg("%s (v"BB_VER") started", applet_name);
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option = udhcp_find_option(server_config.options, DHCP_LEASE_TIME);
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server_config.max_lease_sec = DEFAULT_LEASE_TIME;
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if (option) {
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move_from_unaligned32(server_config.max_lease_sec, option->data + OPT_DATA);
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server_config.max_lease_sec = ntohl(server_config.max_lease_sec);
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}
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/* Sanity check */
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num_ips = server_config.end_ip - server_config.start_ip + 1;
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if (server_config.max_leases > num_ips) {
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bb_error_msg("max_leases=%u is too big, setting to %u",
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(unsigned)server_config.max_leases, num_ips);
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server_config.max_leases = num_ips;
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}
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g_leases = xzalloc(server_config.max_leases * sizeof(g_leases[0]));
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read_leases(server_config.lease_file);
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if (udhcp_read_interface(server_config.interface,
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&server_config.ifindex,
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&server_config.server_nip,
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server_config.server_mac)
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) {
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retval = 1;
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goto ret;
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}
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/* Setup the signal pipe */
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udhcp_sp_setup();
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continue_with_autotime:
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timeout_end = monotonic_sec() + server_config.auto_time;
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while (1) { /* loop until universe collapses */
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fd_set rfds;
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struct dhcp_packet packet;
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int bytes;
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struct timeval tv;
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uint8_t *server_id_opt;
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uint8_t *requested_ip_opt;
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uint32_t requested_nip = requested_nip; /* for compiler */
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uint32_t static_lease_nip;
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struct dyn_lease *lease, fake_lease;
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if (server_socket < 0) {
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server_socket = udhcp_listen_socket(/*INADDR_ANY,*/ SERVER_PORT,
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server_config.interface);
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}
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max_sock = udhcp_sp_fd_set(&rfds, server_socket);
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if (server_config.auto_time) {
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tv.tv_sec = timeout_end - monotonic_sec();
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tv.tv_usec = 0;
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}
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retval = 0;
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if (!server_config.auto_time || tv.tv_sec > 0) {
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retval = select(max_sock + 1, &rfds, NULL, NULL,
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server_config.auto_time ? &tv : NULL);
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}
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if (retval == 0) {
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write_leases();
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goto continue_with_autotime;
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}
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if (retval < 0 && errno != EINTR) {
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log1("Error on select");
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continue;
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}
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switch (udhcp_sp_read(&rfds)) {
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case SIGUSR1:
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bb_info_msg("Received SIGUSR1");
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write_leases();
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/* why not just reset the timeout, eh */
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goto continue_with_autotime;
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case SIGTERM:
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bb_info_msg("Received SIGTERM");
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write_leases();
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goto ret0;
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case 0: /* no signal: read a packet */
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break;
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default: /* signal or error (probably EINTR): back to select */
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continue;
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}
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bytes = udhcp_recv_kernel_packet(&packet, server_socket);
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if (bytes < 0) {
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/* bytes can also be -2 ("bad packet data") */
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if (bytes == -1 && errno != EINTR) {
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log1("Read error: %s, reopening socket", strerror(errno));
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close(server_socket);
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server_socket = -1;
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}
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continue;
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}
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if (packet.hlen != 6) {
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bb_error_msg("MAC length != 6, ignoring packet");
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continue;
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}
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if (packet.op != BOOTREQUEST) {
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bb_error_msg("not a REQUEST, ignoring packet");
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continue;
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}
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state = udhcp_get_option(&packet, DHCP_MESSAGE_TYPE);
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if (state == NULL || state[0] < DHCP_MINTYPE || state[0] > DHCP_MAXTYPE) {
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bb_error_msg("no or bad message type option, ignoring packet");
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continue;
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}
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/* Get SERVER_ID if present */
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server_id_opt = udhcp_get_option(&packet, DHCP_SERVER_ID);
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if (server_id_opt) {
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uint32_t server_id_network_order;
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move_from_unaligned32(server_id_network_order, server_id_opt);
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if (server_id_network_order != server_config.server_nip) {
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/* client talks to somebody else */
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log1("server ID doesn't match, ignoring");
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continue;
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}
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}
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/* Look for a static/dynamic lease */
|
|
static_lease_nip = get_static_nip_by_mac(server_config.static_leases, &packet.chaddr);
|
|
if (static_lease_nip) {
|
|
bb_info_msg("Found static lease: %x", static_lease_nip);
|
|
memcpy(&fake_lease.lease_mac, &packet.chaddr, 6);
|
|
fake_lease.lease_nip = static_lease_nip;
|
|
fake_lease.expires = 0;
|
|
lease = &fake_lease;
|
|
} else {
|
|
lease = find_lease_by_mac(packet.chaddr);
|
|
}
|
|
|
|
/* Get REQUESTED_IP if present */
|
|
requested_ip_opt = udhcp_get_option(&packet, DHCP_REQUESTED_IP);
|
|
if (requested_ip_opt) {
|
|
move_from_unaligned32(requested_nip, requested_ip_opt);
|
|
}
|
|
|
|
switch (state[0]) {
|
|
|
|
case DHCPDISCOVER:
|
|
log1("Received DISCOVER");
|
|
|
|
send_offer(&packet, static_lease_nip, lease, requested_ip_opt);
|
|
break;
|
|
|
|
case DHCPREQUEST:
|
|
log1("Received REQUEST");
|
|
/* RFC 2131:
|
|
|
|
o DHCPREQUEST generated during SELECTING state:
|
|
|
|
Client inserts the address of the selected server in 'server
|
|
identifier', 'ciaddr' MUST be zero, 'requested IP address' MUST be
|
|
filled in with the yiaddr value from the chosen DHCPOFFER.
|
|
|
|
Note that the client may choose to collect several DHCPOFFER
|
|
messages and select the "best" offer. The client indicates its
|
|
selection by identifying the offering server in the DHCPREQUEST
|
|
message. If the client receives no acceptable offers, the client
|
|
may choose to try another DHCPDISCOVER message. Therefore, the
|
|
servers may not receive a specific DHCPREQUEST from which they can
|
|
decide whether or not the client has accepted the offer.
|
|
|
|
o DHCPREQUEST generated during INIT-REBOOT state:
|
|
|
|
'server identifier' MUST NOT be filled in, 'requested IP address'
|
|
option MUST be filled in with client's notion of its previously
|
|
assigned address. 'ciaddr' MUST be zero. The client is seeking to
|
|
verify a previously allocated, cached configuration. Server SHOULD
|
|
send a DHCPNAK message to the client if the 'requested IP address'
|
|
is incorrect, or is on the wrong network.
|
|
|
|
Determining whether a client in the INIT-REBOOT state is on the
|
|
correct network is done by examining the contents of 'giaddr', the
|
|
'requested IP address' option, and a database lookup. If the DHCP
|
|
server detects that the client is on the wrong net (i.e., the
|
|
result of applying the local subnet mask or remote subnet mask (if
|
|
'giaddr' is not zero) to 'requested IP address' option value
|
|
doesn't match reality), then the server SHOULD send a DHCPNAK
|
|
message to the client.
|
|
|
|
If the network is correct, then the DHCP server should check if
|
|
the client's notion of its IP address is correct. If not, then the
|
|
server SHOULD send a DHCPNAK message to the client. If the DHCP
|
|
server has no record of this client, then it MUST remain silent,
|
|
and MAY output a warning to the network administrator. This
|
|
behavior is necessary for peaceful coexistence of non-
|
|
communicating DHCP servers on the same wire.
|
|
|
|
If 'giaddr' is 0x0 in the DHCPREQUEST message, the client is on
|
|
the same subnet as the server. The server MUST broadcast the
|
|
DHCPNAK message to the 0xffffffff broadcast address because the
|
|
client may not have a correct network address or subnet mask, and
|
|
the client may not be answering ARP requests.
|
|
|
|
If 'giaddr' is set in the DHCPREQUEST message, the client is on a
|
|
different subnet. The server MUST set the broadcast bit in the
|
|
DHCPNAK, so that the relay agent will broadcast the DHCPNAK to the
|
|
client, because the client may not have a correct network address
|
|
or subnet mask, and the client may not be answering ARP requests.
|
|
|
|
o DHCPREQUEST generated during RENEWING state:
|
|
|
|
'server identifier' MUST NOT be filled in, 'requested IP address'
|
|
option MUST NOT be filled in, 'ciaddr' MUST be filled in with
|
|
client's IP address. In this situation, the client is completely
|
|
configured, and is trying to extend its lease. This message will
|
|
be unicast, so no relay agents will be involved in its
|
|
transmission. Because 'giaddr' is therefore not filled in, the
|
|
DHCP server will trust the value in 'ciaddr', and use it when
|
|
replying to the client.
|
|
|
|
A client MAY choose to renew or extend its lease prior to T1. The
|
|
server may choose not to extend the lease (as a policy decision by
|
|
the network administrator), but should return a DHCPACK message
|
|
regardless.
|
|
|
|
o DHCPREQUEST generated during REBINDING state:
|
|
|
|
'server identifier' MUST NOT be filled in, 'requested IP address'
|
|
option MUST NOT be filled in, 'ciaddr' MUST be filled in with
|
|
client's IP address. In this situation, the client is completely
|
|
configured, and is trying to extend its lease. This message MUST
|
|
be broadcast to the 0xffffffff IP broadcast address. The DHCP
|
|
server SHOULD check 'ciaddr' for correctness before replying to
|
|
the DHCPREQUEST.
|
|
|
|
The DHCPREQUEST from a REBINDING client is intended to accommodate
|
|
sites that have multiple DHCP servers and a mechanism for
|
|
maintaining consistency among leases managed by multiple servers.
|
|
A DHCP server MAY extend a client's lease only if it has local
|
|
administrative authority to do so.
|
|
*/
|
|
if (!requested_ip_opt) {
|
|
requested_nip = packet.ciaddr;
|
|
if (requested_nip == 0) {
|
|
log1("no requested IP and no ciaddr, ignoring");
|
|
break;
|
|
}
|
|
}
|
|
if (lease && requested_nip == lease->lease_nip) {
|
|
/* client requested or configured IP matches the lease.
|
|
* ACK it, and bump lease expiration time. */
|
|
send_ACK(&packet, lease->lease_nip);
|
|
break;
|
|
}
|
|
/* No lease for this MAC, or lease IP != requested IP */
|
|
|
|
if (server_id_opt /* client is in SELECTING state */
|
|
|| requested_ip_opt /* client is in INIT-REBOOT state */
|
|
) {
|
|
/* "No, we don't have this IP for you" */
|
|
send_NAK(&packet);
|
|
} /* else: client is in RENEWING or REBINDING, do not answer */
|
|
|
|
break;
|
|
|
|
case DHCPDECLINE:
|
|
/* RFC 2131:
|
|
* "If the server receives a DHCPDECLINE message,
|
|
* the client has discovered through some other means
|
|
* that the suggested network address is already
|
|
* in use. The server MUST mark the network address
|
|
* as not available and SHOULD notify the local
|
|
* sysadmin of a possible configuration problem."
|
|
*
|
|
* SERVER_ID must be present,
|
|
* REQUESTED_IP must be present,
|
|
* chaddr must be filled in,
|
|
* ciaddr must be 0 (we do not check this)
|
|
*/
|
|
log1("Received DECLINE");
|
|
if (server_id_opt
|
|
&& requested_ip_opt
|
|
&& lease /* chaddr matches this lease */
|
|
&& requested_nip == lease->lease_nip
|
|
) {
|
|
memset(lease->lease_mac, 0, sizeof(lease->lease_mac));
|
|
lease->expires = time(NULL) + server_config.decline_time;
|
|
}
|
|
break;
|
|
|
|
case DHCPRELEASE:
|
|
/* "Upon receipt of a DHCPRELEASE message, the server
|
|
* marks the network address as not allocated."
|
|
*
|
|
* SERVER_ID must be present,
|
|
* REQUESTED_IP must not be present (we do not check this),
|
|
* chaddr must be filled in,
|
|
* ciaddr must be filled in
|
|
*/
|
|
log1("Received RELEASE");
|
|
if (server_id_opt
|
|
&& lease /* chaddr matches this lease */
|
|
&& packet.ciaddr == lease->lease_nip
|
|
) {
|
|
lease->expires = time(NULL);
|
|
}
|
|
break;
|
|
|
|
case DHCPINFORM:
|
|
log1("Received INFORM");
|
|
send_inform(&packet);
|
|
break;
|
|
}
|
|
}
|
|
ret0:
|
|
retval = 0;
|
|
ret:
|
|
/*if (server_config.pidfile) - server_config.pidfile is never NULL */
|
|
remove_pidfile(server_config.pidfile);
|
|
return retval;
|
|
}
|