| Message ID | 20191122153057.6608-3-pc@cjr.nz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | DFS fixes | expand |
merged into cifs-2.6.git for-next On Fri, Nov 22, 2019 at 9:31 AM Paulo Alcantara (SUSE) <pc@cjr.nz> wrote: > > We don't care about module aliasing validation in > cifs_compose_mount_options(..., is_smb3) when finding the root SMB > session of an DFS namespace in order to refresh DFS referral cache. > > The following issue has been observed when mounting with '-t smb3' and > then specifying 'vers=2.0': > > ... > Nov 08 15:27:08 tw kernel: address conversion returned 0 for FS0.WIN.LOCAL > Nov 08 15:27:08 tw kernel: [kworke] ==> dns_query((null),FS0.WIN.LOCAL,13,(null)) > Nov 08 15:27:08 tw kernel: [kworke] call request_key(,FS0.WIN.LOCAL,) > Nov 08 15:27:08 tw kernel: [kworke] ==> dns_resolver_cmp(FS0.WIN.LOCAL,FS0.WIN.LOCAL) > Nov 08 15:27:08 tw kernel: [kworke] <== dns_resolver_cmp() = 1 > Nov 08 15:27:08 tw kernel: [kworke] <== dns_query() = 13 > Nov 08 15:27:08 tw kernel: fs/cifs/dns_resolve.c: dns_resolve_server_name_to_ip: resolved: FS0.WIN.LOCAL to 192.168.30.26 > ===> Nov 08 15:27:08 tw kernel: CIFS VFS: vers=2.0 not permitted when mounting with smb3 > Nov 08 15:27:08 tw kernel: fs/cifs/dfs_cache.c: CIFS VFS: leaving refresh_tcon (xid = 26) rc = -22 > ... > > Fixes: 5072010ccf05 ("cifs: Fix DFS cache refresher for DFS links") > Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> > --- > fs/cifs/dfs_cache.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c > index 1692c0c6c23a..2faa05860a48 100644 > --- a/fs/cifs/dfs_cache.c > +++ b/fs/cifs/dfs_cache.c > @@ -1317,7 +1317,6 @@ static struct cifs_ses *find_root_ses(struct dfs_cache_vol_info *vi, > int rc; > struct dfs_info3_param ref = {0}; > char *mdata = NULL, *devname = NULL; > - bool is_smb3 = tcon->ses->server->vals->header_preamble_size == 0; > struct TCP_Server_Info *server; > struct cifs_ses *ses; > struct smb_vol vol; > @@ -1344,7 +1343,7 @@ static struct cifs_ses *find_root_ses(struct dfs_cache_vol_info *vi, > goto out; > } > > - rc = cifs_setup_volume_info(&vol, mdata, devname, is_smb3); > + rc = cifs_setup_volume_info(&vol, mdata, devname, false); > kfree(devname); > > if (rc) { > -- > 2.24.0 >
"Paulo Alcantara (SUSE)" <pc@cjr.nz> writes: > We don't care about module aliasing validation in > cifs_compose_mount_options(..., is_smb3) when finding the root SMB > session of an DFS namespace in order to refresh DFS referral cache. Reviewed-by: Aurelien Aptel <aaptel@suse.com>
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c index 1692c0c6c23a..2faa05860a48 100644 --- a/fs/cifs/dfs_cache.c +++ b/fs/cifs/dfs_cache.c @@ -1317,7 +1317,6 @@ static struct cifs_ses *find_root_ses(struct dfs_cache_vol_info *vi, int rc; struct dfs_info3_param ref = {0}; char *mdata = NULL, *devname = NULL; - bool is_smb3 = tcon->ses->server->vals->header_preamble_size == 0; struct TCP_Server_Info *server; struct cifs_ses *ses; struct smb_vol vol; @@ -1344,7 +1343,7 @@ static struct cifs_ses *find_root_ses(struct dfs_cache_vol_info *vi, goto out; } - rc = cifs_setup_volume_info(&vol, mdata, devname, is_smb3); + rc = cifs_setup_volume_info(&vol, mdata, devname, false); kfree(devname); if (rc) {
We don't care about module aliasing validation in cifs_compose_mount_options(..., is_smb3) when finding the root SMB session of an DFS namespace in order to refresh DFS referral cache. The following issue has been observed when mounting with '-t smb3' and then specifying 'vers=2.0': ... Nov 08 15:27:08 tw kernel: address conversion returned 0 for FS0.WIN.LOCAL Nov 08 15:27:08 tw kernel: [kworke] ==> dns_query((null),FS0.WIN.LOCAL,13,(null)) Nov 08 15:27:08 tw kernel: [kworke] call request_key(,FS0.WIN.LOCAL,) Nov 08 15:27:08 tw kernel: [kworke] ==> dns_resolver_cmp(FS0.WIN.LOCAL,FS0.WIN.LOCAL) Nov 08 15:27:08 tw kernel: [kworke] <== dns_resolver_cmp() = 1 Nov 08 15:27:08 tw kernel: [kworke] <== dns_query() = 13 Nov 08 15:27:08 tw kernel: fs/cifs/dns_resolve.c: dns_resolve_server_name_to_ip: resolved: FS0.WIN.LOCAL to 192.168.30.26 ===> Nov 08 15:27:08 tw kernel: CIFS VFS: vers=2.0 not permitted when mounting with smb3 Nov 08 15:27:08 tw kernel: fs/cifs/dfs_cache.c: CIFS VFS: leaving refresh_tcon (xid = 26) rc = -22 ... Fixes: 5072010ccf05 ("cifs: Fix DFS cache refresher for DFS links") Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> --- fs/cifs/dfs_cache.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)