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mount.cifs: add support for sending IPv6 scope ID to kernel

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When getaddrinfo returns an IPv6 address with a non-zero scope_id, send
that to the kernel appended to the address with a '%' delimiter. This
allows people to mount servers via their link-local IPv6 addresses
(given a kernel that understands this address format, of course).

Signed-off-by: Jeff Layton <jlayton@redhat.com>
This commit is contained in:
Jeff Layton 2009-06-25 07:27:25 -04:00
parent 313a2bfa52
commit 2032a1914d
1 changed files with 8 additions and 0 deletions
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8
client/mount.cifs.c
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@ -1562,6 +1562,14 @@ mount_retry:
}
}
if (addr->ai_addr->sa_family == AF_INET6 && addr6->sin6_scope_id) {
strlcat(options, "%", options_size);
current_len = strnlen(options, options_size);
optionstail = options + current_len;
snprintf(optionstail, options_size - current_len, "%u",
addr6->sin6_scope_id);
}
if (!fakemnt && mount(dev_name, mountpoint, "cifs", flags, options)) {
switch (errno) {
case ECONNREFUSED: