request.c (c2934490) request.c (69bb4bb4)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

--- 23 unchanged lines hidden (view full) ---

32#include <netinet/in.h>
33#include <netinet/dhcp.h>
34#include <netinet/udp.h>
35#include <netinet/ip_var.h>
36#include <netinet/udp_var.h>
37#include <dhcp_hostconf.h>
38#include <arpa/inet.h>
39#include <string.h>
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

--- 23 unchanged lines hidden (view full) ---

32#include <netinet/in.h>
33#include <netinet/dhcp.h>
34#include <netinet/udp.h>
35#include <netinet/ip_var.h>
36#include <netinet/udp_var.h>
37#include <dhcp_hostconf.h>
38#include <arpa/inet.h>
39#include <string.h>
40#include <stdlib.h>
41#include <unistd.h>
42#include <dhcpmsg.h>
43
44#include "states.h"
45#include "util.h"
46#include "packet.h"
47#include "interface.h"
48#include "agent.h"
40#include <unistd.h>
41#include <dhcpmsg.h>
42
43#include "states.h"
44#include "util.h"
45#include "packet.h"
46#include "interface.h"
47#include "agent.h"
49#include "defaults.h"
50
51static PKT_LIST *select_best(PKT_LIST **);
48
49static PKT_LIST *select_best(PKT_LIST **);
52static void restart_dhcp(struct ifslist *);
53static stop_func_t stop_requesting;
54
55/*
56 * dhcp_requesting(): checks if OFFER packets to come in from DHCP servers.
57 * if so, chooses the best one, sends a REQUEST to the
58 * server and registers an event handler to receive
59 * the ACK/NAK
60 *

--- 73 unchanged lines hidden (view full) ---

134
135 if (offer->opts[CD_DHCP_TYPE] == NULL) {
136
137 ifsp->if_state = REQUESTING;
138
139 if (dhcp_bound(ifsp, offer) == 0) {
140 dhcpmsg(MSG_WARNING, "dhcp_requesting: dhcp_bound "
141 "failed for %s", ifsp->if_name);
50static stop_func_t stop_requesting;
51
52/*
53 * dhcp_requesting(): checks if OFFER packets to come in from DHCP servers.
54 * if so, chooses the best one, sends a REQUEST to the
55 * server and registers an event handler to receive
56 * the ACK/NAK
57 *

--- 73 unchanged lines hidden (view full) ---

131
132 if (offer->opts[CD_DHCP_TYPE] == NULL) {
133
134 ifsp->if_state = REQUESTING;
135
136 if (dhcp_bound(ifsp, offer) == 0) {
137 dhcpmsg(MSG_WARNING, "dhcp_requesting: dhcp_bound "
138 "failed for %s", ifsp->if_name);
142 restart_dhcp(ifsp);
139 dhcp_restart(ifsp);
143 return;
144 }
145
146 return;
147 }
148
149 /*
150 * if we got a message from the server, display it.

--- 252 unchanged lines hidden (view full) ---

403 stop_pkt_retransmission(ifsp);
404 (void) unregister_acknak(ifsp);
405
406 if (*(plp->opts[CD_DHCP_TYPE]->value) == NAK) {
407 dhcpmsg(MSG_WARNING, "dhcp_acknak: NAK on interface %s",
408 ifsp->if_name);
409 ifsp->if_bad_offers++;
410 free_pkt_list(&plp);
140 return;
141 }
142
143 return;
144 }
145
146 /*
147 * if we got a message from the server, display it.

--- 252 unchanged lines hidden (view full) ---

400 stop_pkt_retransmission(ifsp);
401 (void) unregister_acknak(ifsp);
402
403 if (*(plp->opts[CD_DHCP_TYPE]->value) == NAK) {
404 dhcpmsg(MSG_WARNING, "dhcp_acknak: NAK on interface %s",
405 ifsp->if_name);
406 ifsp->if_bad_offers++;
407 free_pkt_list(&plp);
411 restart_dhcp(ifsp);
408 dhcp_restart(ifsp);
412
413 /*
414 * remove any bogus cached configuration we might have
415 * around (right now would only happen if we got here
416 * from INIT_REBOOT).
417 */
418
419 (void) remove_hostconf(ifsp->if_name);
420 return;
421 }
422
423 if (plp->opts[CD_SERVER_ID] == NULL ||
424 plp->opts[CD_SERVER_ID]->len != sizeof (ipaddr_t)) {
425 dhcpmsg(MSG_ERROR, "dhcp_acknak: ACK with no valid server id, "
426 "restarting DHCP on %s", ifsp->if_name);
427 ifsp->if_bad_offers++;
428 free_pkt_list(&plp);
409
410 /*
411 * remove any bogus cached configuration we might have
412 * around (right now would only happen if we got here
413 * from INIT_REBOOT).
414 */
415
416 (void) remove_hostconf(ifsp->if_name);
417 return;
418 }
419
420 if (plp->opts[CD_SERVER_ID] == NULL ||
421 plp->opts[CD_SERVER_ID]->len != sizeof (ipaddr_t)) {
422 dhcpmsg(MSG_ERROR, "dhcp_acknak: ACK with no valid server id, "
423 "restarting DHCP on %s", ifsp->if_name);
424 ifsp->if_bad_offers++;
425 free_pkt_list(&plp);
429 restart_dhcp(ifsp);
426 dhcp_restart(ifsp);
430 return;
431 }
432
433 if (plp->opts[CD_MESSAGE] != NULL)
434 print_server_msg(ifsp, plp->opts[CD_MESSAGE]);
435
436 if (dhcp_bound(ifsp, plp) == 0) {
437 dhcpmsg(MSG_WARNING, "dhcp_acknak: dhcp_bound failed "
438 "for %s", ifsp->if_name);
427 return;
428 }
429
430 if (plp->opts[CD_MESSAGE] != NULL)
431 print_server_msg(ifsp, plp->opts[CD_MESSAGE]);
432
433 if (dhcp_bound(ifsp, plp) == 0) {
434 dhcpmsg(MSG_WARNING, "dhcp_acknak: dhcp_bound failed "
435 "for %s", ifsp->if_name);
439 restart_dhcp(ifsp);
436 dhcp_restart(ifsp);
440 return;
441 }
442
443 dhcpmsg(MSG_VERBOSE, "ACK on interface %s", ifsp->if_name);
444}
445
446/*
437 return;
438 }
439
440 dhcpmsg(MSG_VERBOSE, "ACK on interface %s", ifsp->if_name);
441}
442
443/*
447 * restart_dhcp(): restarts DHCP (from INIT) on a given interface
444 * dhcp_restart(): restarts DHCP (from INIT) on a given interface
448 *
449 * input: struct ifslist *: the interface to restart DHCP on
450 * output: void
451 */
452
445 *
446 * input: struct ifslist *: the interface to restart DHCP on
447 * output: void
448 */
449
453static void
454restart_dhcp(struct ifslist *ifsp)
450void
451dhcp_restart(struct ifslist *ifsp)
455{
456 if (iu_schedule_timer(tq, DHCP_RESTART_WAIT, dhcp_start, ifsp) == -1) {
457
458 ifsp->if_state = INIT;
459 ifsp->if_dflags |= DHCP_IF_FAILED;
460
461 ipc_action_finish(ifsp, DHCP_IPC_E_MEMORY);
462 async_finish(ifsp);
463
452{
453 if (iu_schedule_timer(tq, DHCP_RESTART_WAIT, dhcp_start, ifsp) == -1) {
454
455 ifsp->if_state = INIT;
456 ifsp->if_dflags |= DHCP_IF_FAILED;
457
458 ipc_action_finish(ifsp, DHCP_IPC_E_MEMORY);
459 async_finish(ifsp);
460
464 dhcpmsg(MSG_ERROR, "restart_dhcp: cannot schedule dhcp_start, "
461 dhcpmsg(MSG_ERROR, "dhcp_restart: cannot schedule dhcp_start, "
465 "reverting to INIT state on %s", ifsp->if_name);
466 } else
467 hold_ifs(ifsp);
468}
469
470/*
471 * stop_requesting(): decides when to stop retransmitting REQUESTs
472 *

--- 21 unchanged lines hidden --- 		462 "reverting to INIT state on %s", ifsp->if_name);
463 } else
464 hold_ifs(ifsp);
465}
466
467/*
468 * stop_requesting(): decides when to stop retransmitting REQUESTs
469 *

--- 21 unchanged lines hidden ---