X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fmount%2Fnfsumount.c;fp=utils%2Fmount%2Fnfsumount.c;h=8cd28528b1a01d4c4b86b3306189088b6a927d2a;hp=02d40ff9d2bcb32457f1414b073cbec16cb4f0b9;hb=c01e5ca6179b8f5b041605d9bbd75a0f76812d54;hpb=d6c1b35c6b40243bfd6fba2591c9f8f2653078c0 diff --git a/utils/mount/nfsumount.c b/utils/mount/nfsumount.c index 02d40ff..8cd2852 100644 --- a/utils/mount/nfsumount.c +++ b/utils/mount/nfsumount.c @@ -37,6 +37,7 @@ #include "network.h" #include "parse_opt.h" #include "parse_dev.h" +#include "utils.h" #define MOUNTSFILE "/proc/mounts" #define LINELEN (4096) @@ -138,113 +139,6 @@ static int del_mtab(const char *spec, const char *node) 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. * @@ -340,17 +234,6 @@ static struct option umount_longopts[] = { 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;