2 * Amanda, The Advanced Maryland Automatic Network Disk Archiver
3 * Copyright (c) 1991-1999 University of Maryland at College Park
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of U.M. not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. U.M. makes no representations about the
13 * suitability of this software for any purpose. It is provided "as is"
14 * without express or implied warranty.
16 * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
18 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Authors: the Amanda Development Team. Its members are listed in a
24 * file named AUTHORS, in the root directory of this distribution.
28 * $Id: amandad.c,v 1.18 2006/08/21 20:17:09 martinea Exp $
30 * handle client-host side of Amanda network communications, including
31 * security checks, execution of the proper service, and acking the
39 #include "amfeatures.h"
47 #define REP_TIMEOUT (6*60*60) /* secs for service to reply */
48 #define ACK_TIMEOUT 10 /* XXX should be configurable */
49 #define STDERR_PIPE (DATA_FD_COUNT + 1)
51 #define amandad_debug(i, ...) do { \
52 if ((i) <= debug_amandad) { \
53 dbprintf(__VA_ARGS__); \
58 * These are the actions for entering the state machine
60 typedef enum { A_START, A_RECVPKT, A_RECVREP, A_PENDING, A_FINISH, A_CONTINUE,
61 A_SENDNAK, A_TIMEOUT } action_t;
64 * This is a state in the state machine. It is a function pointer to
65 * the function that actually implements the state.
67 struct active_service;
68 typedef action_t (*state_t)(struct active_service *, action_t, pkt_t *);
70 /* string that we scan for in sendbackup's MESG stream */
71 static const char info_end_str[] = "sendbackup: info end\n";
72 #define INFO_END_LEN (sizeof(info_end_str)-1)
75 * Here are the services that we allow.
76 * Must be in the same order as services[].
88 static struct services {
93 { "noop", 1, SERVICE_NOOP },
94 { "sendsize", 1, SERVICE_SENDSIZE },
95 { "sendbackup", 1, SERVICE_SENDBACKUP },
96 { "selfcheck", 1, SERVICE_SELFCHECK },
97 { "amindexd", 0, SERVICE_AMINDEXD },
98 { "amidxtaped", 0, SERVICE_AMIDXTAPED },
99 { "amdumpd", 0, SERVICE_AMDUMPD }
101 #define NSERVICES (int)(sizeof(services) / sizeof(services[0]))
104 * This structure describes an active running service.
106 * An active service is something running that we have received
107 * a request for. This structure holds info on that service, including
108 * file descriptors for data, etc, as well as the security handle
109 * for communications with the amanda server.
111 struct active_service {
112 service_t service; /* service name */
113 char *cmd; /* name of command we ran */
114 char *arguments; /* arguments we sent it */
115 security_handle_t *security_handle; /* remote server */
116 state_t state; /* how far this has progressed */
117 pid_t pid; /* pid of subprocess */
118 int send_partial_reply; /* send PREP packet */
119 int reqfd; /* pipe to write requests */
120 int repfd; /* pipe to read replies */
121 int errfd; /* pipe to read stderr */
122 event_handle_t *ev_repfd; /* read event handle for repfd */
123 event_handle_t *ev_reptimeout; /* timeout for rep data */
124 event_handle_t *ev_errfd; /* read event handle for errfd */
125 pkt_t rep_pkt; /* rep packet we're sending out */
126 char *errbuf; /* buffer to read the err into */
127 char *repbuf; /* buffer to read the rep into */
128 size_t bufsize; /* length of repbuf */
129 size_t repbufsize; /* length of repbuf */
130 int repretry; /* times we'll retry sending the rep */
131 int seen_info_end; /* have we seen "sendbackup info end\n"? */
132 char info_end_buf[INFO_END_LEN]; /* last few bytes read, used for scanning for info end */
135 * General user streams to the process, and their equivalent
138 struct datafd_handle {
139 int fd_read; /* pipe to child process */
140 int fd_write; /* pipe to child process */
141 event_handle_t *ev_read; /* it's read event handle */
142 event_handle_t *ev_write; /* it's write event handle */
143 security_stream_t *netfd; /* stream to amanda server */
144 struct active_service *as; /* pointer back to our enclosure */
145 } data[DATA_FD_COUNT];
146 char databuf[NETWORK_BLOCK_BYTES]; /* buffer to relay netfd data in */
150 * Queue of outstanding requests that we are running.
152 GSList *serviceq = NULL;
154 static int wait_30s = 1;
155 static int exit_on_qlength = 1;
156 static char *auth = NULL;
157 static kencrypt_type amandad_kencrypt = KENCRYPT_NONE;
159 int main(int argc, char **argv);
161 static int allocstream(struct active_service *, int);
162 static void exit_check(void *);
163 static void protocol_accept(security_handle_t *, pkt_t *);
164 static void state_machine(struct active_service *, action_t, pkt_t *);
166 static action_t s_sendack(struct active_service *, action_t, pkt_t *);
167 static action_t s_repwait(struct active_service *, action_t, pkt_t *);
168 static action_t s_processrep(struct active_service *, action_t, pkt_t *);
169 static action_t s_sendrep(struct active_service *, action_t, pkt_t *);
170 static action_t s_ackwait(struct active_service *, action_t, pkt_t *);
172 static void repfd_recv(void *);
173 static void process_errfd(void *cookie);
174 static void errfd_recv(void *);
175 static void timeout_repfd(void *);
176 static void protocol_recv(void *, pkt_t *, security_status_t);
177 static void process_readnetfd(void *);
178 static void process_writenetfd(void *, void *, ssize_t);
179 static struct active_service *service_new(security_handle_t *,
180 const char *, service_t, const char *);
181 static void service_delete(struct active_service *);
182 static int writebuf(struct active_service *, const void *, size_t);
183 static ssize_t do_sendpkt(security_handle_t *handle, pkt_t *pkt);
184 static char *amandad_get_security_conf (char *, void *);
186 static const char *state2str(state_t);
187 static const char *action2str(action_t);
197 const security_driver_t *secdrv;
199 char *pgm = "amandad"; /* in case argv[0] is not set */
200 #if defined(USE_REUSEADDR)
206 * Configure program for internationalization:
207 * 1) Only set the message locale for now.
208 * 2) Set textdomain for all amanda related programs to "amanda"
209 * We don't want to be forced to support dozens of message catalogs.
211 setlocale(LC_MESSAGES, "C");
212 textdomain("amanda");
218 * Nexenta needs the SUN_PERSONALITY env variable to be unset, otherwise
219 * the Sun version of tar in /usr/sun/sbin/tar is called instead.
221 * On other operating systems this will have no effect.
225 unsetenv("SUN_PERSONALITY");
229 * When called via inetd, it is not uncommon to forget to put the
230 * argv[0] value on the config line. On some systems (e.g. Solaris)
231 * this causes argv and/or argv[0] to be NULL, so we have to be
232 * careful getting our name.
234 if ((argv == NULL) || (argv[0] == NULL)) {
235 pgm = "amandad"; /* in case argv[0] is not set */
237 pgm = basename(argv[0]); /* Strip of leading path get debug name */
240 dbopen(DBG_SUBDIR_AMANDAD);
243 error(_("argv == NULL\n"));
247 if (argc > 1 && argv && argv[1] && g_str_equal(argv[1], "--version")) {
248 printf("amandad-%s\n", VERSION);
252 /* Don't die when child closes pipe */
253 signal(SIGPIPE, SIG_IGN);
255 /* Parse the configuration; we'll handle errors later */
256 config_init(CONFIG_INIT_CLIENT, NULL);
258 if (geteuid() == 0) {
259 check_running_as(RUNNING_AS_ROOT);
260 initgroups(CLIENT_LOGIN, get_client_gid());
261 setgid(get_client_gid());
262 setegid(get_client_gid());
263 seteuid(get_client_uid());
265 check_running_as(RUNNING_AS_CLIENT_LOGIN);
268 add_amanda_log_handler(amanda_log_stderr);
269 add_amanda_log_handler(amanda_log_syslog);
272 * ad-hoc argument parsing
274 * We accept -auth=[authentication type]
278 * We also add a list of services that amandad can launch
281 in = 0; out = 1; /* default to stdin/stdout */
283 for (i = 1; i < argc; i++) {
285 * Get a driver for a security type specified after -auth=
287 if (strncmp(argv[i], "-auth=", strlen("-auth=")) == 0) {
288 argv[i] += strlen("-auth=");
289 secdrv = security_getdriver(argv[i]);
291 if (secdrv == NULL) {
292 error(_("no driver for security type '%s'\n"), argv[i]);
295 if (strcmp(auth, "local") == 0 ||
296 strcmp(auth, "rsh") == 0 ||
297 strcmp(auth, "ssh") == 0) {
299 for (i=0; i < NSERVICES; i++) {
300 services[i].active = 1;
307 * If -no-exit is specified, always run even after requests have
310 else if (strcmp(argv[i], "-no-exit") == 0) {
316 * Allow us to directly bind to a udp port for debugging.
317 * This may only apply to some security types.
319 else if (strncmp(argv[i], "-udp=", strlen("-udp=")) == 0) {
321 struct sockaddr_in6 sin;
323 struct sockaddr_in sin;
326 argv[i] += strlen("-udp=");
328 in = out = socket(AF_INET6, SOCK_DGRAM, 0);
330 in = out = socket(AF_INET, SOCK_DGRAM, 0);
333 error(_("can't create dgram socket: %s\n"), strerror(errno));
337 r = setsockopt(in, SOL_SOCKET, SO_REUSEADDR,
338 (void *)&on, (socklen_t_equiv)sizeof(on));
340 dbprintf(_("amandad: setsockopt(SO_REUSEADDR) failed: %s\n"),
346 sin.sin6_family = (sa_family_t)AF_INET6;
347 sin.sin6_addr = in6addr_any;
348 sin.sin6_port = (in_port_t)htons((in_port_t)atoi(argv[i]));
350 sin.sin_family = (sa_family_t)AF_INET;
351 sin.sin_addr.s_addr = INADDR_ANY;
352 sin.sin_port = (in_port_t)htons((in_port_t)atoi(argv[i]));
354 if (bind(in, (struct sockaddr *)&sin, (socklen_t_equiv)sizeof(sin)) < 0) {
355 error(_("can't bind to port %d: %s\n"), atoi(argv[i]),
361 * Ditto for tcp ports.
363 else if (strncmp(argv[i], "-tcp=", strlen("-tcp=")) == 0) {
365 struct sockaddr_in6 sin;
367 struct sockaddr_in sin;
372 argv[i] += strlen("-tcp=");
374 sock = socket(AF_INET6, SOCK_STREAM, 0);
376 sock = socket(AF_INET, SOCK_STREAM, 0);
379 error(_("can't create tcp socket: %s\n"), strerror(errno));
383 r = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
384 (void *)&on, (socklen_t_equiv)sizeof(on));
386 dbprintf(_("amandad: setsockopt(SO_REUSEADDR) failed: %s\n"),
391 sin.sin6_family = (sa_family_t)AF_INET6;
392 sin.sin6_addr = in6addr_any;
393 sin.sin6_port = (in_port_t)htons((in_port_t)atoi(argv[i]));
395 sin.sin_family = (sa_family_t)AF_INET;
396 sin.sin_addr.s_addr = INADDR_ANY;
397 sin.sin_port = (in_port_t)htons((in_port_t)atoi(argv[i]));
399 if (bind(sock, (struct sockaddr *)&sin, (socklen_t_equiv)sizeof(sin)) < 0) {
400 error(_("can't bind to port %d: %s\n"), atoi(argv[i]),
405 n = (socklen_t_equiv)sizeof(sin);
406 in = out = accept(sock, (struct sockaddr *)&sin, &n);
409 * It must be a service name
412 /* clear all services */
414 for (j = 0; j < (int)NSERVICES; j++)
415 services[j].active = 0;
419 if(strcmp(argv[i],"amdump") == 0) {
420 services[0].active = 1;
421 services[1].active = 1;
422 services[2].active = 1;
423 services[3].active = 1;
426 for (j = 0; j < (int)NSERVICES; j++)
427 if (strcmp(services[j].name, argv[i]) == 0)
429 if (j == (int)NSERVICES) {
430 dbprintf(_("%s: invalid service\n"), argv[i]);
433 services[j].active = 1;
439 * If no security type specified, use BSDTCP
441 if (secdrv == NULL) {
442 secdrv = security_getdriver("BSDTCP");
444 if (secdrv == NULL) {
445 error(_("no driver for default security type 'BSDTCP'\n"));
450 if(strcasecmp(auth, "rsh") == 0 ||
451 strcasecmp(auth, "ssh") == 0 ||
452 strcasecmp(auth, "local") == 0 ||
453 strcasecmp(auth, "bsdtcp") == 0) {
458 #ifndef SINGLE_USERID
459 if (geteuid() == 0) {
460 if (strcasecmp(auth, "krb5") != 0) {
462 /* lookup our local user name */
463 if ((pwd = getpwnam(CLIENT_LOGIN)) == NULL) {
464 error(_("getpwnam(%s) failed."), CLIENT_LOGIN);
467 if (pwd->pw_uid != 0) {
468 error(_("'amandad' must be run as user '%s' when using '%s' authentication"),
473 if (strcasecmp(auth, "krb5") == 0) {
474 error(_("'amandad' must be run as user 'root' when using 'krb5' authentication"));
483 dbprintf(_("version %s\n"), VERSION);
484 for (i = 0; version_info[i] != NULL; i++) {
485 dbprintf(" %s", version_info[i]);
488 if (! (argc >= 1 && argv != NULL && argv[0] != NULL)) {
489 dbprintf(_("WARNING: argv[0] not defined: check inetd.conf\n"));
492 /* krb5 require the euid to be 0 */
493 if (strcasecmp(auth, "krb5") == 0) {
498 * Schedule to call protocol_accept() when new security handles
499 * are created on stdin.
501 security_accept(secdrv, amandad_get_security_conf, in, out, protocol_accept, NULL);
504 * Schedule an event that will try to exit every 30 seconds if there
505 * are no requests outstanding.
508 (void)event_register((event_id_t)30, EV_TIME, exit_check, &no_exit);
511 * Call event_loop() with an arg of 0, telling it to block until all
512 * events are completed.
523 * This runs periodically and checks to see if we have any active services
524 * still running. If we don't, then we quit.
532 assert(cookie != NULL);
533 no_exit = *(int *)cookie;
536 * If things are still running, then don't exit.
538 if (g_slist_length(serviceq) > 0)
542 * If the caller asked us to never exit, then we're done
552 * Handles new incoming protocol handles. This is a callback for
553 * security_accept(), which gets called when new handles are detected.
557 security_handle_t * handle,
562 struct active_service *as;
563 char *pktbody, *tok, *service, *arguments;
564 char *service_path = NULL;
565 GSList *errlist = NULL;
572 * If handle is NULL, then the connection is closed.
579 * If we have errors (not warnings) from the config file, let the remote system
580 * know immediately. Unfortunately, we only get one ERROR line, so if there
581 * are multiple errors, we just show the first.
583 if (config_errors(&errlist) >= CFGERR_ERRORS) {
584 GSList *iter = errlist;
586 gboolean multiple_errors = FALSE;
589 errmsg = (char *)iter->data;
591 multiple_errors = TRUE;
593 errmsg = "(no error message)";
596 pkt_init(&pkt_out, P_NAK, "ERROR %s%s", errmsg,
597 multiple_errors? _(" (additional errors not displayed)"):"");
598 do_sendpkt(handle, &pkt_out);
599 amfree(pkt_out.body);
600 security_close(handle);
604 peer_name = security_get_authenticated_peer_name(handle);
605 g_debug("authenticated peer name is '%s'", peer_name);
609 * If pkt is NULL, then there was a problem with the new connection.
612 dbprintf(_("accept error: %s\n"), security_geterror(handle));
613 pkt_init(&pkt_out, P_NAK, "ERROR %s\n", security_geterror(handle));
614 do_sendpkt(handle, &pkt_out);
615 amfree(pkt_out.body);
616 security_close(handle);
620 dbprintf(_("accept recv %s pkt:\n<<<<<\n%s>>>>>\n"),
621 pkt_type2str(pkt->type), pkt->body);
624 * If this is not a REQ packet, just forget about it.
626 if (pkt->type != P_REQ) {
627 dbprintf(_("received unexpected %s packet:\n<<<<<\n%s>>>>>\n\n"),
628 pkt_type2str(pkt->type), pkt->body);
629 security_close(handle);
633 pktbody = service = arguments = NULL;
637 * Parse out the service and arguments
640 pktbody = stralloc(pkt->body);
642 tok = strtok(pktbody, " ");
645 if (strcmp(tok, "SERVICE") != 0)
648 tok = strtok(NULL, " \n");
651 service = stralloc(tok);
653 /* we call everything else 'arguments' */
654 tok = strtok(NULL, "");
657 arguments = stralloc(tok);
659 /* see if it's one we allow */
660 for (i = 0; i < (int)NSERVICES; i++)
661 if (services[i].active == 1 && strcmp(services[i].name, service) == 0)
663 if (i == (int)NSERVICES) {
664 dbprintf(_("%s: invalid service\n"), service);
665 pkt_init(&pkt_out, P_NAK, _("ERROR %s: invalid service, add '%s' as argument to amandad\n"), service, service);
669 service_path = vstralloc(amlibexecdir, "/", service, NULL);
670 if (access(service_path, X_OK) < 0) {
671 dbprintf(_("can't execute %s: %s\n"), service_path, strerror(errno));
672 pkt_init(&pkt_out, P_NAK,
673 _("ERROR execute access to \"%s\" denied\n"),
678 /* see if its already running */
679 for (iter = serviceq; iter != NULL; iter = g_slist_next(iter)) {
680 as = (struct active_service *)iter->data;
681 if (strcmp(as->cmd, service_path) == 0 &&
682 strcmp(as->arguments, arguments) == 0) {
683 dbprintf(_("%s %s: already running, acking req\n"),
685 pkt_init_empty(&pkt_out, P_ACK);
686 goto send_pkt_out_no_delete;
691 * create a new service instance, and send the arguments down
694 dbprintf(_("creating new service: %s\n%s\n"), service, arguments);
695 as = service_new(handle, service_path, services[i].service, arguments);
696 if (writebuf(as, arguments, strlen(arguments)) < 0) {
697 const char *errmsg = strerror(errno);
698 dbprintf(_("error sending arguments to %s: %s\n"), service, errmsg);
699 pkt_init(&pkt_out, P_NAK, _("ERROR error writing arguments to %s: %s\n"),
707 amfree(service_path);
711 * Move to the sendack state, and start up the state
714 as->state = s_sendack;
715 state_machine(as, A_START, NULL);
719 pkt_init(&pkt_out, P_NAK, _("ERROR invalid REQ\n"));
720 dbprintf(_("received invalid %s packet:\n<<<<<\n%s>>>>>\n\n"),
721 pkt_type2str(pkt->type), pkt->body);
726 send_pkt_out_no_delete:
728 amfree(service_path);
731 do_sendpkt(handle, &pkt_out);
732 security_close(handle);
733 amfree(pkt_out.body);
737 * Handles incoming protocol packets. Routes responses to the proper
742 struct active_service * as,
750 amandad_debug(1, _("state_machine: %p entering\n"), as);
752 curstate = as->state;
753 amandad_debug(1, _("state_machine: %p curstate=%s action=%s\n"), as,
754 state2str(curstate), action2str(action));
755 retaction = (*curstate)(as, action, pkt);
756 amandad_debug(1, _("state_machine: %p curstate=%s returned %s (nextstate=%s)\n"),
757 as, state2str(curstate), action2str(retaction),
758 state2str(as->state));
762 * State has queued up and is now blocking on input.
765 amandad_debug(1, _("state_machine: %p leaving (A_PENDING)\n"), as);
769 * service has switched states. Loop.
775 * state has determined that the packet it received was bogus.
776 * Send a nak, and return.
779 dbprintf(_("received unexpected %s packet\n"),
780 pkt_type2str(pkt->type));
781 dbprintf(_("<<<<<\n%s----\n\n"), pkt->body);
782 pkt_init(&nak, P_NAK, _("ERROR unexpected packet type %s\n"),
783 pkt_type2str(pkt->type));
784 do_sendpkt(as->security_handle, &nak);
786 security_recvpkt(as->security_handle, protocol_recv, as, -1);
787 amandad_debug(1, _("state_machine: %p leaving (A_SENDNAK)\n"), as);
791 * Service is done. Remove it and finish.
794 amandad_debug(1, _("state_machine: %p leaving (A_FINISH)\n"), as);
807 * This state just sends an ack. After that, we move to the repwait
808 * state to wait for REP data to arrive from the subprocess.
812 struct active_service * as,
818 (void)action; /* Quiet unused parameter warning */
819 (void)pkt; /* Quiet unused parameter warning */
821 pkt_init_empty(&ack, P_ACK);
822 if (do_sendpkt(as->security_handle, &ack) < 0) {
823 dbprintf(_("error sending ACK: %s\n"),
824 security_geterror(as->security_handle));
831 * move to the repwait state
832 * Setup a listener for data on the reply fd, but also
833 * listen for packets over the wire, as the server may
834 * poll us if we take a long time.
835 * Setup a timeout that will fire if it takes too long to
838 as->state = s_repwait;
839 as->ev_repfd = event_register((event_id_t)as->repfd, EV_READFD, repfd_recv, as);
840 as->ev_reptimeout = event_register(REP_TIMEOUT, EV_TIME,
843 as->ev_errfd = event_register((event_id_t)as->errfd, EV_READFD, errfd_recv, as);
844 security_recvpkt(as->security_handle, protocol_recv, as, -1);
849 * This is the repwait state. We have responded to the initial REQ with
850 * an ACK, and we are now waiting for the process we spawned to pass us
851 * data to send in a REP.
855 struct active_service * as,
868 * We normally shouldn't receive any packets while waiting
869 * for our REP data, but in some cases we do.
871 if (action == A_RECVPKT) {
874 * Another req for something that's running. Just send an ACK
875 * and go back and wait for more data.
877 if (pkt->type == P_REQ) {
878 dbprintf(_("received dup P_REQ packet, ACKing it\n"));
879 amfree(as->rep_pkt.body);
880 pkt_init_empty(&as->rep_pkt, P_ACK);
881 do_sendpkt(as->security_handle, &as->rep_pkt);
882 security_recvpkt(as->security_handle, protocol_recv, as, -1);
885 /* something unexpected. Nak it */
889 if (action == A_TIMEOUT) {
890 amfree(as->rep_pkt.body);
891 pkt_init(&as->rep_pkt, P_NAK, _("ERROR timeout on reply pipe\n"));
892 dbprintf(_("%s timed out waiting for REP data\n"), as->cmd);
893 do_sendpkt(as->security_handle, &as->rep_pkt);
897 assert(action == A_RECVREP);
898 if(as->bufsize == 0) {
899 as->bufsize = NETWORK_BLOCK_BYTES;
900 as->repbuf = alloc(as->bufsize);
904 n = read(as->repfd, as->repbuf + as->repbufsize,
905 as->bufsize - as->repbufsize - 1);
906 } while ((n < 0) && ((errno == EINTR) || (errno == EAGAIN)));
908 const char *errstr = strerror(errno);
909 dbprintf(_("read error on reply pipe: %s\n"), errstr);
910 amfree(as->rep_pkt.body);
911 pkt_init(&as->rep_pkt, P_NAK, _("ERROR read error on reply pipe: %s\n"),
913 do_sendpkt(as->security_handle, &as->rep_pkt);
917 /* If end of service, wait for process status */
919 pid = waitpid(as->pid, &retstat, WNOHANG);
920 if (as->service == SERVICE_NOOP ||
921 as->service == SERVICE_SENDSIZE ||
922 as->service == SERVICE_SELFCHECK) {
924 while (t<5 && pid == 0) {
927 pid = waitpid(as->pid, &retstat, WNOHANG);
934 pid = waitpid(as->pid, &retstat, WNOHANG);
938 if (! WIFEXITED(retstat)) {
940 code = WTERMSIG(retstat);
941 } else if (WEXITSTATUS(retstat) != 0) {
943 code = WEXITSTATUS(retstat);
946 dbprintf(_("service %s failed: pid %u exited with %s %d\n"),
947 (as->cmd)?as->cmd:_("??UNKONWN??"),
951 _("ERROR service %s failed: pid %u exited with %s %d\n"),
952 (as->cmd)?as->cmd:_("??UNKONWN??"), (unsigned)as->pid,
954 if (as->repbufsize + strlen(msg) >= (as->bufsize - 1)) {
956 repbuf_temp = alloc(as->bufsize);
957 memcpy(repbuf_temp, as->repbuf, as->repbufsize + 1);
959 as->repbuf = repbuf_temp;
961 strcpy(as->repbuf + as->repbufsize, msg);
962 as->repbufsize += strlen(msg);
969 * If we got some data, go back and wait for more, or EOF. Nul terminate
972 as->repbuf[n + as->repbufsize] = '\0';
975 if(as->repbufsize >= (as->bufsize - 1)) {
977 repbuf_temp = alloc(as->bufsize);
978 memcpy(repbuf_temp, as->repbuf, as->repbufsize + 1);
980 as->repbuf = repbuf_temp;
982 else if(as->send_partial_reply) {
983 amfree(as->rep_pkt.body);
984 pkt_init(&as->rep_pkt, P_PREP, "%s", as->repbuf);
985 do_sendpkt(as->security_handle, &as->rep_pkt);
986 amfree(as->rep_pkt.body);
987 pkt_init_empty(&as->rep_pkt, P_REP);
994 * If we got 0, then we hit EOF. Process the data and release
999 assert(as->ev_repfd != NULL);
1000 event_release(as->ev_repfd);
1001 as->ev_repfd = NULL;
1003 assert(as->ev_reptimeout != NULL);
1004 event_release(as->ev_reptimeout);
1005 as->ev_reptimeout = NULL;
1007 as->state = s_processrep;
1009 return (A_CONTINUE);
1013 * After we have read in all of the rep data, we process it and send
1014 * it out as a REP packet.
1018 struct active_service * as,
1024 (void)action; /* Quiet unused parameter warning */
1025 (void)pkt; /* Quiet unused parameter warning */
1028 * Copy the rep lines into the outgoing packet.
1030 * If this line is a CONNECT, translate it
1031 * Format is "CONNECT <tag> <handle> <tag> <handle> etc...
1034 * CONNECT DATA 4 MESG 5 INDEX 6
1036 * The tags are arbitrary. The handles are in the DATA_FD pool.
1037 * We need to map these to security streams and pass them back
1038 * to the amanda server. If the handle is -1, then we don't map.
1040 if (strncmp_const(as->repbuf,"KENCRYPT\n") == 0) {
1041 amandad_kencrypt = KENCRYPT_WILL_DO;
1042 repbuf = stralloc(as->repbuf + 9);
1044 repbuf = stralloc(as->repbuf);
1046 amfree(as->rep_pkt.body);
1047 pkt_init_empty(&as->rep_pkt, P_REP);
1048 tok = strtok(repbuf, " ");
1051 if (strcmp(tok, "CONNECT") == 0) {
1052 char *line, *nextbuf;
1054 /* Save the entire line */
1055 line = strtok(NULL, "\n");
1056 /* Save the buf following the line */
1057 nextbuf = strtok(NULL, "");
1059 if (line == NULL || nextbuf == NULL)
1062 pkt_cat(&as->rep_pkt, "CONNECT");
1064 /* loop over the id/handle pairs */
1067 tok = strtok(line, " ");
1068 line = NULL; /* keep working from line */
1071 pkt_cat(&as->rep_pkt, " %s", tok);
1074 tok = strtok(NULL, " \n");
1077 /* convert the handle into something the server can process */
1078 pkt_cat(&as->rep_pkt, " %d", allocstream(as, atoi(tok)));
1080 pkt_cat(&as->rep_pkt, "\n%s", nextbuf);
1083 pkt_cat(&as->rep_pkt, "%s", as->repbuf);
1087 * We've setup our REP packet in as->rep_pkt. Now move to the transmission
1090 as->state = s_sendrep;
1091 as->repretry = getconf_int(CNF_REP_TRIES);
1093 return (A_CONTINUE);
1097 * This is the state where we send the REP we just collected from our child.
1101 struct active_service * as,
1105 (void)action; /* Quiet unused parameter warning */
1106 (void)pkt; /* Quiet unused parameter warning */
1109 * Transmit it and move to the ack state.
1111 do_sendpkt(as->security_handle, &as->rep_pkt);
1112 security_recvpkt(as->security_handle, protocol_recv, as, ACK_TIMEOUT);
1113 as->state = s_ackwait;
1118 * This is the state in which we wait for the server to ACK the REP
1123 struct active_service * as,
1127 struct datafd_handle *dh;
1131 * If we got a timeout, try again, but eventually give up.
1133 if (action == A_TIMEOUT) {
1134 if (--as->repretry > 0) {
1135 as->state = s_sendrep;
1136 return (A_CONTINUE);
1138 dbprintf(_("timeout waiting for ACK for our REP\n"));
1141 amandad_debug(1, _("received ACK, now opening streams\n"));
1143 assert(action == A_RECVPKT);
1145 if (pkt->type == P_REQ) {
1146 dbprintf(_("received dup P_REQ packet, resending REP\n"));
1147 as->state = s_sendrep;
1148 return (A_CONTINUE);
1151 if (pkt->type != P_ACK)
1154 if (amandad_kencrypt == KENCRYPT_WILL_DO) {
1155 amandad_kencrypt = KENCRYPT_YES;
1159 * Got the ack, now open the pipes
1161 for (dh = &as->data[0]; dh < &as->data[DATA_FD_COUNT]; dh++) {
1162 if (dh->netfd == NULL)
1164 dbprintf("opening security stream for fd %d\n", (int)(dh - as->data) + DATA_FD_OFFSET);
1165 if (security_stream_accept(dh->netfd) < 0) {
1166 dbprintf(_("stream %td accept failed: %s\n"),
1167 dh - &as->data[0], security_geterror(as->security_handle));
1168 security_stream_close(dh->netfd);
1173 /* setup an event for reads from it. As a special case, don't start
1174 * listening on as->data[0] until we read some data on another fd, if
1175 * the service is sendbackup. This ensures that we send a MESG or
1176 * INDEX token before any DATA tokens, as dumper assumes. This is a
1177 * hack, if that wasn't already obvious! */
1178 if (dh != &as->data[0] || as->service != SERVICE_SENDBACKUP) {
1179 dh->ev_read = event_register((event_id_t)dh->fd_read, EV_READFD,
1180 process_readnetfd, dh);
1182 amandad_debug(1, "Skipping registration of sendbackup's data FD\n");
1185 security_stream_read(dh->netfd, process_writenetfd, dh);
1190 * Pipes are open, so auth them. Count them at the same time.
1192 for (npipes = 0, dh = &as->data[0]; dh < &as->data[DATA_FD_COUNT]; dh++) {
1193 if (dh->netfd == NULL)
1195 if (security_stream_auth(dh->netfd) < 0) {
1196 security_stream_close(dh->netfd);
1198 event_release(dh->ev_read);
1199 event_release(dh->ev_write);
1201 dh->ev_write = NULL;
1208 * If no pipes are open, then we're done. Otherwise, just start running.
1209 * The event handlers on all of the pipes will take it from here.
1211 amandad_debug(1, _("at end of s_ackwait, npipes is %d\n"), npipes);
1215 security_close(as->security_handle);
1216 as->security_handle = NULL;
1222 * Called when a repfd has received data
1228 struct active_service *as = cookie;
1231 assert(as->ev_repfd != NULL);
1233 state_machine(as, A_RECVREP, NULL);
1240 struct active_service *as = cookie;
1242 /* Process errfd before sending the REP packet */
1244 SELECT_ARG_TYPE readset;
1248 memset(&tv, 0, SIZEOF(tv));
1250 FD_SET(as->errfd, &readset);
1251 nfound = select(as->errfd+1, &readset, NULL, NULL, &tv);
1252 if (nfound && FD_ISSET(as->errfd, &readset)) {
1259 * Called when a errfd has received data
1265 struct active_service *as = cookie;
1271 assert(as->ev_errfd != NULL);
1273 n = read(as->errfd, &buf, 32768);
1276 /* Terminate it with '\0' */
1280 as->errbuf = vstrextend(&as->errbuf, buf, NULL);
1282 as->errbuf = stralloc(buf);
1284 } else if (n == 0) {
1285 event_release(as->ev_errfd);
1286 as->ev_errfd = NULL;
1287 } else { /* n < 0 */
1288 event_release(as->ev_errfd);
1289 as->ev_errfd = NULL;
1290 g_snprintf(buf, 32768,
1291 "error reading stderr or service: %s\n", strerror(errno));
1294 /* for each line terminate by '\n' */
1295 while (as->errbuf != NULL && (r = strchr(as->errbuf, '\n')) != NULL) {
1299 s = vstrallocf("ERROR service %s: %s\n",
1300 services[as->service].name, as->errbuf);
1302 /* Add to repbuf, error message will be in the REP packet if it
1303 * is not already sent
1306 if (as->bufsize == 0) {
1307 as->bufsize = NETWORK_BLOCK_BYTES;
1308 as->repbuf = alloc(as->bufsize);
1310 while (as->bufsize < as->repbufsize + n) {
1313 repbuf_temp = alloc(as->bufsize);
1314 memcpy(repbuf_temp, as->repbuf, as->repbufsize + 1);
1316 as->repbuf = repbuf_temp;
1318 memcpy(as->repbuf + as->repbufsize, s, n);
1319 as->repbufsize += n;
1323 /* remove first line from buffer */
1332 * Called when a repfd has timed out
1338 struct active_service *as = cookie;
1341 assert(as->ev_reptimeout != NULL);
1343 state_machine(as, A_TIMEOUT, NULL);
1347 * Called when a handle has received data
1353 security_status_t status)
1355 struct active_service *as = cookie;
1361 dbprintf(_("received %s pkt:\n<<<<<\n%s>>>>>\n"),
1362 pkt_type2str(pkt->type), pkt->body);
1363 state_machine(as, A_RECVPKT, pkt);
1366 dbprintf(_("timeout\n"));
1367 state_machine(as, A_TIMEOUT, NULL);
1370 dbprintf(_("receive error: %s\n"),
1371 security_geterror(as->security_handle));
1377 * This is a generic relay function that just reads data from one of
1378 * the process's pipes and passes it up the equivalent security_stream_t
1385 struct datafd_handle *dh = cookie;
1386 struct active_service *as = dh->as;
1392 n = read(dh->fd_read, as->databuf, SIZEOF(as->databuf));
1393 } while ((n < 0) && ((errno == EINTR) || (errno == EAGAIN)));
1399 pkt_init(&nak, P_NAK, _("A ERROR data descriptor %d broken: %s\n"),
1400 dh->fd_read, strerror(errno));
1404 * Process has closed the pipe. Just remove this event handler.
1405 * If all pipes are closed, shut down this service.
1408 event_release(dh->ev_read);
1410 if(dh->ev_write == NULL) {
1411 security_stream_close(dh->netfd);
1414 for (dh = &as->data[0]; dh < &as->data[DATA_FD_COUNT]; dh++) {
1415 if (dh->netfd != NULL)
1422 /* Handle the special case of recognizing "sendbackup info end"
1423 * from sendbackup's MESG fd */
1424 if (as->service == SERVICE_SENDBACKUP && !as->seen_info_end && dh == &as->data[1]) {
1425 /* make a buffer containing the combined data from info_end_buf
1426 * and what we've read this time, and search it for info_end_strj
1427 * This includes a NULL byte for strstr's sanity. */
1428 char *combined_buf = malloc(INFO_END_LEN + n + 1);
1429 memcpy(combined_buf, as->info_end_buf, INFO_END_LEN);
1430 memcpy(combined_buf+INFO_END_LEN, as->databuf, n);
1431 combined_buf[INFO_END_LEN+n] = '\0';
1433 as->seen_info_end = (strstr(combined_buf, info_end_str) != NULL);
1435 /* fill info_end_buf from the tail end of combined_buf */
1436 memcpy(as->info_end_buf, combined_buf + n, INFO_END_LEN);
1437 amfree(combined_buf);
1439 /* if we did see info_end_str, start reading the data fd (fd 0) */
1440 if (as->seen_info_end) {
1441 struct datafd_handle *dh = &as->data[0];
1442 amandad_debug(1, "Opening datafd to sendbackup (delayed until sendbackup sent header info)\n");
1443 dh->ev_read = event_register((event_id_t)dh->fd_read, EV_READFD,
1444 process_readnetfd, dh);
1446 amandad_debug(1, "sendbackup header info still not complete\n");
1450 if (security_stream_write(dh->netfd, as->databuf, (size_t)n) < 0) {
1451 /* stream has croaked */
1452 pkt_init(&nak, P_NAK, _("ERROR write error on stream %d: %s\n"),
1453 security_stream_id(dh->netfd),
1454 security_stream_geterror(dh->netfd));
1460 do_sendpkt(as->security_handle, &nak);
1466 * This is a generic relay function that just read data from one of
1467 * the security_stream_t and passes it up the equivalent process's pipes
1475 struct datafd_handle *dh;
1477 assert(cookie != NULL);
1480 if (dh->fd_write <= 0) {
1481 dbprintf(_("process_writenetfd: dh->fd_write <= 0\n"));
1482 } else if (size > 0) {
1483 full_write(dh->fd_write, buf, (size_t)size);
1484 security_stream_read(dh->netfd, process_writenetfd, dh);
1487 aclose(dh->fd_write);
1493 * Convert a local stream handle (DATA_FD...) into something that
1494 * can be sent to the amanda server.
1496 * Returns a number that should be sent to the server in the REP packet.
1500 struct active_service * as,
1503 struct datafd_handle *dh;
1505 /* note that handle is in the range DATA_FD_OFFSET to DATA_FD_COUNT, but
1506 * it is NOT a file descriptor! */
1508 /* if the handle is -1, then we don't bother */
1512 /* make sure the handle's kosher */
1513 if (handle < DATA_FD_OFFSET || handle >= DATA_FD_OFFSET + DATA_FD_COUNT)
1516 /* get a pointer into our handle array */
1517 dh = &as->data[handle - DATA_FD_OFFSET];
1519 /* make sure we're not already using the net handle */
1520 if (dh->netfd != NULL)
1523 /* allocate a stream from the security layer and return */
1524 dh->netfd = security_stream_server(as->security_handle);
1525 if (dh->netfd == NULL) {
1526 dbprintf(_("couldn't open stream to server: %s\n"),
1527 security_geterror(as->security_handle));
1532 * convert the stream into a numeric id that can be sent to the
1535 return (security_stream_id(dh->netfd));
1539 * Create a new service instance
1541 static struct active_service *
1543 security_handle_t * security_handle,
1546 const char * arguments)
1549 int data_read[DATA_FD_COUNT + 2][2];
1550 int data_write[DATA_FD_COUNT + 2][2];
1551 struct active_service *as;
1555 char *amanda_remote_host_env[2];
1557 assert(security_handle != NULL);
1558 assert(cmd != NULL);
1559 assert(arguments != NULL);
1561 /* a plethora of pipes */
1562 /* data_read[0] : stdin
1563 * data_write[0] : stdout
1564 * data_read[1], data_write[1] : first stream
1565 * data_read[2], data_write[2] : second stream
1566 * data_read[3], data_write[3] : third stream
1567 * data_write[4] : stderr
1569 for (i = 0; i < DATA_FD_COUNT + 1; i++) {
1570 if (pipe(data_read[i]) < 0) {
1571 error(_("pipe: %s\n"), strerror(errno));
1574 if (pipe(data_write[i]) < 0) {
1575 error(_("pipe: %s\n"), strerror(errno));
1579 if (pipe(data_write[STDERR_PIPE]) < 0) {
1580 error(_("pipe: %s\n"), strerror(errno));
1584 switch(pid = fork()) {
1586 error(_("could not fork service %s: %s\n"), cmd, strerror(errno));
1590 * The parent. Close the far ends of our pipes and return.
1592 as = g_new0(struct active_service, 1);
1593 as->cmd = stralloc(cmd);
1594 as->arguments = stralloc(arguments);
1595 as->security_handle = security_handle;
1597 as->service = service;
1599 as->send_partial_reply = 0;
1600 as->seen_info_end = FALSE;
1601 /* fill in info_end_buf with non-null characters */
1602 memset(as->info_end_buf, '-', sizeof(as->info_end_buf));
1603 if(service == SERVICE_SENDSIZE) {
1604 g_option_t *g_options;
1605 char *option_str, *p;
1607 option_str = stralloc(as->arguments+8);
1608 p = strchr(option_str,'\n');
1611 g_options = parse_g_options(option_str, 1);
1612 if(am_has_feature(g_options->features, fe_partial_estimate)) {
1613 as->send_partial_reply = 1;
1615 free_g_options(g_options);
1619 /* write to the request pipe */
1620 aclose(data_read[0][0]);
1621 as->reqfd = data_read[0][1];
1624 * read from the reply pipe
1626 as->repfd = data_write[0][0];
1627 aclose(data_write[0][1]);
1628 as->ev_repfd = NULL;
1633 as->rep_pkt.body = NULL;
1636 * read from the stderr pipe
1638 as->errfd = data_write[STDERR_PIPE][0];
1639 aclose(data_write[STDERR_PIPE][1]);
1640 as->ev_errfd = NULL;
1644 * read from the rest of the general-use pipes
1645 * (netfds are opened as the client requests them)
1647 for (i = 0; i < DATA_FD_COUNT; i++) {
1648 aclose(data_read[i + 1][1]);
1649 aclose(data_write[i + 1][0]);
1650 as->data[i].fd_read = data_read[i + 1][0];
1651 as->data[i].fd_write = data_write[i + 1][1];
1652 as->data[i].ev_read = NULL;
1653 as->data[i].ev_write = NULL;
1654 as->data[i].netfd = NULL;
1655 as->data[i].as = as;
1658 /* add it to the service queue */
1659 /* increment the active service count */
1660 serviceq = g_slist_append(serviceq, (gpointer)as);
1665 * The child. Put our pipes in their advertised locations
1669 /* set up the AMANDA_AUTHENTICATED_PEER env var so child services
1670 * can use it to authenticate */
1671 peer_name = security_get_authenticated_peer_name(security_handle);
1672 amanda_remote_host_env[0] = NULL;
1673 amanda_remote_host_env[1] = NULL;
1675 amanda_remote_host_env[0] =
1676 g_strdup_printf("AMANDA_AUTHENTICATED_PEER=%s", peer_name);
1680 * The data stream is stdin in the new process
1682 if (dup2(data_read[0][0], 0) < 0) {
1683 error(_("dup %d to %d failed: %s\n"), data_read[0][0], 0,
1687 aclose(data_read[0][0]);
1688 aclose(data_read[0][1]);
1691 * The reply stream is stdout
1693 if (dup2(data_write[0][1], 1) < 0) {
1694 error(_("dup %d to %d failed: %s\n"), data_write[0][1], 1,
1697 aclose(data_write[0][0]);
1698 aclose(data_write[0][1]);
1700 for (i = 0; i < DATA_FD_COUNT; i++) {
1701 aclose(data_read[i + 1][0]);
1702 aclose(data_write[i + 1][1]);
1706 * Make sure they are not open in the range DATA_FD_OFFSET to
1707 * DATA_FD_OFFSET + DATA_FD_COUNT*2 - 1
1709 for (i = 0; i < DATA_FD_COUNT; i++) {
1710 while(data_read[i + 1][1] >= DATA_FD_OFFSET &&
1711 data_read[i + 1][1] <= DATA_FD_OFFSET + DATA_FD_COUNT*2 - 1) {
1712 newfd = dup(data_read[i + 1][1]);
1714 error(_("Can't dup out off DATA_FD range"));
1715 data_read[i + 1][1] = newfd;
1717 while(data_write[i + 1][0] >= DATA_FD_OFFSET &&
1718 data_write[i + 1][0] <= DATA_FD_OFFSET + DATA_FD_COUNT*2 - 1) {
1719 newfd = dup(data_write[i + 1][0]);
1721 error(_("Can't dup out off DATA_FD range"));
1722 data_write[i + 1][0] = newfd;
1725 while(data_write[4][0] >= DATA_FD_OFFSET &&
1726 data_write[4][0] <= DATA_FD_OFFSET + DATA_FD_COUNT*2 - 1) {
1727 newfd = dup(data_write[4][0]);
1729 error(_("Can't dup out off DATA_FD range"));
1730 data_write[4][0] = newfd;
1732 while(data_write[4][1] >= DATA_FD_OFFSET &&
1733 data_write[4][1] <= DATA_FD_OFFSET + DATA_FD_COUNT*2 - 1) {
1734 newfd = dup(data_write[4][1]);
1736 error(_("Can't dup out off DATA_FD range"));
1737 data_write[4][1] = newfd;
1740 for (i = 0; i < DATA_FD_COUNT*2; i++)
1741 close(DATA_FD_OFFSET + i);
1744 * The rest start at the offset defined in amandad.h, and continue
1745 * through the internal defined.
1747 for (i = 0; i < DATA_FD_COUNT; i++) {
1748 if (dup2(data_read[i + 1][1], i*2 + DATA_FD_OFFSET) < 0) {
1749 error(_("dup %d to %d failed: %s\n"), data_read[i + 1][1],
1750 i + DATA_FD_OFFSET, strerror(errno));
1752 aclose(data_read[i + 1][1]);
1754 if (dup2(data_write[i + 1][0], i*2 + 1 + DATA_FD_OFFSET) < 0) {
1755 error(_("dup %d to %d failed: %s\n"), data_write[i + 1][0],
1756 i + DATA_FD_OFFSET, strerror(errno));
1758 aclose(data_write[i + 1][0]);
1761 /* close all unneeded fd */
1762 close(STDERR_FILENO);
1763 dup2(data_write[STDERR_PIPE][1], 2);
1764 aclose(data_write[STDERR_PIPE][0]);
1765 aclose(data_write[STDERR_PIPE][1]);
1766 safe_fd(DATA_FD_OFFSET, DATA_FD_COUNT*2);
1768 execle(cmd, cmd, "amandad", auth, (char *)NULL, safe_env_full(amanda_remote_host_env));
1769 error(_("could not exec service %s: %s\n"), cmd, strerror(errno));
1776 * Unallocate a service instance
1780 struct active_service * as)
1785 struct datafd_handle *dh;
1787 amandad_debug(1, _("closing service: %s\n"),
1788 (as->cmd)?as->cmd:_("??UNKONWN??"));
1792 assert(as->cmd != NULL);
1795 assert(as->arguments != NULL);
1796 amfree(as->arguments);
1798 if (as->reqfd != -1)
1800 if (as->repfd != -1)
1802 if (as->errfd != -1) {
1807 if (as->ev_repfd != NULL)
1808 event_release(as->ev_repfd);
1809 if (as->ev_reptimeout != NULL)
1810 event_release(as->ev_reptimeout);
1811 if (as->ev_errfd != NULL)
1812 event_release(as->ev_errfd);
1814 for (i = 0; i < DATA_FD_COUNT; i++) {
1817 aclose(dh->fd_read);
1818 aclose(dh->fd_write);
1820 if (dh->netfd != NULL)
1821 security_stream_close(dh->netfd);
1823 if (dh->ev_read != NULL)
1824 event_release(dh->ev_read);
1825 if (dh->ev_write != NULL)
1826 event_release(dh->ev_write);
1829 if (as->security_handle != NULL)
1830 security_close(as->security_handle);
1832 /* try to kill the process; if this fails, then it's already dead and
1833 * likely some of the other zombie cleanup ate its brains, so we don't
1834 * bother to waitpid for it */
1835 assert(as->pid > 0);
1836 pid = waitpid(as->pid, NULL, WNOHANG);
1837 if (pid != as->pid && kill(as->pid, SIGTERM) == 0) {
1838 pid = waitpid(as->pid, NULL, WNOHANG);
1840 while (pid != as->pid && count > 0) {
1843 pid = waitpid(as->pid, NULL, WNOHANG);
1845 if (pid != as->pid) {
1846 g_debug("Process %d failed to exit", (int)as->pid);
1850 serviceq = g_slist_remove(serviceq, (gpointer)as);
1853 amfree(as->arguments);
1855 amfree(as->rep_pkt.body);
1858 if(exit_on_qlength == 0 && g_slist_length(serviceq) == 0) {
1865 * Like 'fullwrite', but does the work in a child process so pipelines
1870 struct active_service * as,
1877 switch (pid=fork()) {
1882 waitpid(pid, NULL, WNOHANG);
1883 return 0; /* this is the parent */
1885 case 0: /* this is the child */
1887 writesize = full_write(as->reqfd, bufp, size);
1888 exit(writesize != size);
1896 security_handle_t * handle,
1899 dbprintf(_("sending %s pkt:\n<<<<<\n%s>>>>>\n"),
1900 pkt_type2str(pkt->type), pkt->body);
1902 return security_sendpkt(handle, pkt);
1908 * Convert a state into a string
1914 static const struct {
1918 #define X(state) { state, stringize(state) }
1928 for (i = 0; i < (int)(sizeof(states) / sizeof(states[0])); i++)
1929 if (state == states[i].state)
1930 return (states[i].str);
1931 return (_("INVALID STATE"));
1935 * Convert an action into a string
1941 static const struct {
1945 #define X(action) { action, stringize(action) }
1958 for (i = 0; i < (int)(sizeof(actions) / sizeof(actions[0])); i++)
1959 if (action == actions[i].action)
1960 return (actions[i].str);
1961 return (_("UNKNOWN ACTION"));
1965 amandad_get_security_conf(
1969 (void)arg; /* Quiet unused parameter warning */
1971 if (!string || !*string)
1974 if (strcmp(string, "kencrypt")==0) {
1975 if (amandad_kencrypt == KENCRYPT_YES)