2 * Copyright (c) 1992, 1993
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6 * This code is derived from software donated to Berkeley by
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37 * @(#)activate.c 8.3 (Berkeley) 4/28/95
39 * $FreeBSD: src/sbin/mount_portal/activate.c,v 1.7 1999/08/28 00:13:35 peter Exp $
40 * $DragonFly: src/sbin/mount_portal/activate.c,v 1.6 2007/05/18 17:05:12 dillon Exp $
46 #include <sys/types.h>
47 #include <sys/param.h>
48 #include <sys/socket.h>
49 #include <sys/syslog.h>
55 * Scan the providers list and call the
56 * appropriate function.
59 activate_argv(struct portal_cred *pcr, char *key, char **v, int so, int *fdp)
63 for (pr = providers; pr->pr_match; pr++)
64 if (strcmp(v[0], pr->pr_match) == 0)
65 return ((*pr->pr_func)(pcr, key, v, so, fdp));
71 get_request(int so, struct portal_cred *pcr, char *key, int klen)
77 iov[0].iov_base = (caddr_t) pcr;
78 iov[0].iov_len = sizeof(*pcr);
79 iov[1].iov_base = key;
80 iov[1].iov_len = klen;
82 memset(&msg, 0, sizeof(msg));
86 n = recvmsg(so, &msg, 0);
90 if ((size_t)n <= sizeof(*pcr))
100 send_reply(int so, int fd, int error)
111 * Line up error code. Don't worry about byte ordering
112 * because we must be sending to the local machine.
114 iov.iov_base = (caddr_t) &error;
115 iov.iov_len = sizeof(error);
120 memset(&msg, 0, sizeof(msg));
125 * If there is a file descriptor to send then
126 * construct a suitable rights control message.
130 ctl.cmsg.cmsg_len = sizeof(ctl);
131 ctl.cmsg.cmsg_level = SOL_SOCKET;
132 ctl.cmsg.cmsg_type = SCM_RIGHTS;
133 msg.msg_control = (caddr_t) &ctl;
134 msg.msg_controllen = ctl.cmsg.cmsg_len;
140 if ((n = sendmsg(so, &msg, 0)) < 0)
141 syslog(LOG_ERR, "send: %s", strerror(errno));
143 fprintf(stderr, "sent %d bytes\n", n);
147 if (shutdown(so, SHUT_RDWR) < 0)
148 syslog(LOG_ERR, "shutdown: %s", strerror(errno));
151 * Throw away the open file descriptor
157 activate(qelem *q, int so)
159 struct portal_cred pcred;
160 char key[MAXPATHLEN+1];
166 * Read the key from the socket
168 error = get_request(so, &pcred, key, sizeof(key));
170 syslog(LOG_ERR, "activate: recvmsg: %s", strerror(error));
175 fprintf(stderr, "lookup key %s\n", key);
179 * Find a match in the configuration file
181 v = conf_match(q, key);
184 * If a match existed, then find an appropriate portal
185 * otherwise simply return ENOENT.
188 error = activate_argv(&pcred, key, v, so, &fd);
198 send_reply(so, fd, error);