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@...>
---
client/mount.cifs.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/client/mount.cifs.c b/client/mount.cifs.c
index 97144a0..db05665 100644
--- a/client/mount.cifs.c
+++ b/client/mount.cifs.c
@@ -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:
--
1.6.0.6
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