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mount: for cifs, dont insert "ip=ADDR" option if user gave it explicitly

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This makes it possible to use scoped IPv6 addresses:

mount -t cifs -o ip=<ADDR>%<iface_id> //<ADDR>/test test

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-09-27 21:02:35 +02:00
parent dea3bdbefe
commit b09ab448b8
1 changed files with 14 additions and 8 deletions
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8
util-linux/mount.c
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@ -1931,7 +1931,6 @@ static int singlemount(struct mntent *mp, int ignore_busy)
int len;
char c;
char *hostname, *share;
char *dotted, *ip;
len_and_sockaddr *lsa;
// Parse mp->mnt_fsname of the form "//hostname/share[/dir1/dir2]"
@ -1971,6 +1970,11 @@ static int singlemount(struct mntent *mp, int ignore_busy)
if (!lsa)
goto report_error;
// If there is no "ip=..." option yet
if (!is_prefixed_with(filteropts, ",ip="+1)
&& !strstr(filteropts, ",ip=")
) {
char *dotted, *ip;
// Insert "ip=..." option into options
dotted = xmalloc_sockaddr2dotted_noport(&lsa->u.sa);
if (ENABLE_FEATURE_CLEAN_UP) free(lsa);
@ -1982,8 +1986,10 @@ static int singlemount(struct mntent *mp, int ignore_busy)
// musl apparently does. This results in "ip=numericIPv6%iface_name"
// (instead of _numeric_ iface_id) with glibc.
// This probably should be fixed in glibc, not here.
// The workaround is to manually specify correct "ip=ADDR%n" option.
parse_mount_options(ip, &filteropts);
if (ENABLE_FEATURE_CLEAN_UP) free(ip);
}
mp->mnt_type = (char*)"cifs";
rc = mount_it_now(mp, vfsflags, filteropts);