#include "network.h"
#include "parse_opt.h"
#include "parse_dev.h"
+#include "utils.h"
#define MOUNTSFILE "/proc/mounts"
#define LINELEN (4096)
return EX_FILEIO;
}
-/*
- * Discover mount server's hostname/address by examining mount options
- *
- * Returns a pointer to a string that the caller must free, on
- * success; otherwise NULL is returned.
- */
-static char *nfs_umount_hostname(struct mount_options *options,
- char *hostname)
-{
- char *option;
-
- option = po_get(options, "mountaddr");
- if (option)
- goto out;
- option = po_get(options, "mounthost");
- if (option)
- goto out;
- option = po_get(options, "addr");
- if (option)
- goto out;
-
- return hostname;
-
-out:
- free(hostname);
- return strdup(option);
-}
-
-/*
- * Returns EX_SUCCESS if mount options and device name have been
- * parsed successfully; otherwise EX_FAIL.
- */
-static int nfs_umount_do_umnt(struct mount_options *options,
- char **hostname, char **dirname)
-{
- union {
- struct sockaddr sa;
- struct sockaddr_in s4;
- struct sockaddr_in6 s6;
- } address;
- struct sockaddr *sap = &address.sa;
- socklen_t salen = sizeof(address);
- struct pmap nfs_pmap, mnt_pmap;
- sa_family_t family;
-
- if (!nfs_options2pmap(options, &nfs_pmap, &mnt_pmap))
- return EX_FAIL;
-
- /* Skip UMNT call for vers=4 mounts */
- if (nfs_pmap.pm_vers == 4)
- return EX_SUCCESS;
-
- *hostname = nfs_umount_hostname(options, *hostname);
- if (!*hostname) {
- nfs_error(_("%s: out of memory"), progname);
- return EX_FAIL;
- }
-
- if (!nfs_mount_proto_family(options, &family))
- return 0;
- if (!nfs_lookup(*hostname, family, sap, &salen))
- /* nfs_lookup reports any errors */
- return EX_FAIL;
-
- if (nfs_advise_umount(sap, salen, &mnt_pmap, dirname) == 0)
- /* nfs_advise_umount reports any errors */
- return EX_FAIL;
-
- return EX_SUCCESS;
-}
-
-/*
- * Pick up certain mount options used during the original mount
- * from /etc/mtab. The basics include the server's IP address and
- * the server pathname of the share to unregister.
- *
- * These options might also describe the mount port, mount protocol
- * version, and transport protocol used to punch through a firewall.
- * We will need this information to get through the firewall again
- * to do the umount.
- *
- * Note that option parsing failures won't necessarily cause the
- * umount request to fail. Those values will be left zero in the
- * pmap tuple. If the GETPORT call later fails to disambiguate them,
- * then we fail.
- */
-static int nfs_umount23(const char *devname, char *string)
-{
- char *hostname, *dirname;
- struct mount_options *options;
- int result = EX_FAIL;
-
- if (!nfs_parse_devname(devname, &hostname, &dirname))
- return EX_USAGE;
-
- options = po_split(string);
- if (options) {
- result = nfs_umount_do_umnt(options, &hostname, &dirname);
- po_destroy(options);
- } else
- nfs_error(_("%s: option parsing error"), progname);
-
- free(hostname);
- free(dirname);
- return result;
-}
-
/*
* Detect NFSv4 mounts.
*
{ NULL, 0, 0, 0 }
};
-static void umount_usage(void)
-{
- printf(_("usage: %s dir [-fvnrlh]\n"), progname);
- printf(_("options:\n\t-f\t\tforce unmount\n"));
- printf(_("\t-v\tverbose\n"));
- printf(_("\t-n\tDo not update /etc/mtab\n"));
- printf(_("\t-r\tremount\n"));
- printf(_("\t-l\tlazy unmount\n"));
- printf(_("\t-h\tprint this help\n\n"));
-}
-
int nfsumount(int argc, char *argv[])
{
int c, ret;