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e4af35fa55
linux/fs/cifs
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Paulo Alcantara e4af35fa55 cifs: handle hostnames that resolve to same ip in failover 
In order to support reconnect to hostnames that resolve to same ip
address, besides relying on the currently set hostname to match DFS
targets, attempt to resolve the targets and then match their addresses
with the reconnected server ip address.

For instance, if we have two hostnames "FOO" and "BAR", and both
resolve to the same ip address, we would be able to handle failover in
DFS paths like

    \\FOO\dfs\link1 -> [ \BAZ\share2 (*), \BAR\share1 ]
    \\FOO\dfs\link2 -> [ \BAZ\share2 (*), \FOO\share1 ]

so when "BAZ" is no longer accessible, link1 and link2 would get
reconnected despite having different target hostnames.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-06-01 00:10:18 -05:00
..
asn1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
cifs_debug.c cifs: smbd: Merge code to track pending packets 2020-04-07 12:41:16 -05:00
cifs_debug.h cifs: add a debug macro that prints \\server\share for errors 2019-09-16 11:43:38 -05:00
cifs_dfs_ref.c cifs: fix potential mismatch of UNC paths 2020-02-24 14:20:38 -06:00
cifs_fs_sb.h smb3: add mount option to allow RW caching of share accessed by only 1 client 2019-09-16 11:43:38 -05:00
cifs_ioctl.h cifs: add SMB3 change notification support 2020-02-06 09:14:28 -06:00
cifs_spnego.c cifs: switch servers depending on binding state 2019-11-25 01:16:30 -06:00
cifs_spnego.h
cifs_unicode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_unicode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_uniupr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifsacl.c fs/cifs: fix gcc warning in sid_to_id 2020-03-22 22:49:09 -05:00
cifsacl.h smb3: fix mode passed in on create for modetosid mount option 2019-12-06 14:15:52 -06:00
cifsencrypt.c fs: cifs: switch to RC4 library interface 2019-06-20 14:19:55 +08:00
cifsfs.c smb3: enable swap on SMB3 mounts 2020-04-10 13:32:32 -05:00
cifsfs.h cifs: update internal module version number 2020-03-29 16:59:31 -05:00
cifsglob.h cifs: minor update to comments around the cifs_tcp_ses_lock mutex 2020-04-21 23:51:18 -05:00
cifspdu.h cifs: cifspdu.h: Replace zero-length array with flexible-array member 2020-03-22 22:49:10 -05:00
cifsproto.h cifs: handle hostnames that resolve to same ip in failover 2020-06-01 00:10:18 -05:00
cifsroot.c cifs: cifsroot: add more err checking 2019-09-16 11:43:39 -05:00
cifssmb.c cifs: handle hostnames that resolve to same ip in failover 2020-06-01 00:10:18 -05:00
connect.c cifs: handle hostnames that resolve to same ip in failover 2020-06-01 00:10:18 -05:00
dfs_cache.c cifs: handle prefix paths in reconnect 2020-03-22 22:49:09 -05:00
dfs_cache.h cifs: handle prefix paths in reconnect 2020-03-22 22:49:09 -05:00
dir.c cifs_atomic_open(): fix double-put on late allocation failure 2020-03-12 18:25:20 -04:00
dns_resolve.c keys: Pass the network namespace into request_key mechanism 2019-06-27 23:02:12 +01:00
dns_resolve.h
export.c docs: fs: convert docs without extension to ReST 2019-07-31 13:31:05 -06:00
file.c cifs: Fix null pointer check in cifs_read 2020-05-14 10:30:03 -05:00
fscache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
fscache.h cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
inode.c CIFS: Spelling s/EACCESS/EACCES/ 2020-05-06 10:21:40 -05:00
ioctl.c cifs: add SMB3 change notification support 2020-02-06 09:14:28 -06:00
Kconfig smb3: smbdirect support can be configured by default 2020-04-07 13:39:00 -05:00
link.c cifs: add SMB2_open() arg to return POSIX data 2020-03-22 22:49:09 -05:00
Makefile cifs: Add support for root file systems 2019-09-16 11:43:38 -05:00
misc.c cifs: handle hostnames that resolve to same ip in failover 2020-06-01 00:10:18 -05:00
netmisc.c fs: cifs: mute -Wunused-const-variable message 2019-10-06 22:04:35 -05:00
nterr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
nterr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ntlmssp.h cifs: dynamic allocation of ntlmssp blob 2016-06-23 23:45:07 -05:00
readdir.c smb3: change noisy error message to FYI 2020-04-09 13:28:24 -05:00
rfc1002pdu.h
sess.c cifs: make multichannel warning more visible 2020-02-06 09:12:16 -06:00
smb1ops.c cifs: fix rename() by ensuring source handle opened with DELETE bit 2020-02-24 14:20:38 -06:00
smb2file.c cifs: allow unlock flock and OFD lock across fork 2020-03-22 22:49:09 -05:00
smb2glob.h cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding 2018-10-23 21:16:04 -05:00
smb2inode.c cifs: fix rename() by ensuring source handle opened with DELETE bit 2020-02-24 14:20:38 -06:00
smb2maperror.c smb3: improve handling of share deleted (and share recreated) 2019-09-16 11:43:38 -05:00
smb2misc.c cifs: ignore cached share root handle closing errors 2020-04-07 12:40:40 -05:00
smb2ops.c cifs: fix uninitialised lease_key in open_shroot() 2020-04-22 20:29:11 -05:00
smb2pdu.c cifs: handle hostnames that resolve to same ip in failover 2020-06-01 00:10:18 -05:00
smb2pdu.h cifs: smbd: Calculate the correct maximum packet size for segmented SMBDirect send/receive 2020-03-29 16:41:49 -05:00
smb2proto.h cifs: Allocate crypto structures on the fly for calculating signatures of incoming packets 2020-04-07 12:41:16 -05:00
smb2status.h cifs: don't use __constant_cpu_to_le32() 2019-05-07 23:24:54 -05:00
smb2transport.c smb3: remove overly noisy debug line in signing errors 2020-04-16 12:23:40 -05:00
smbdirect.c cifs: smbd: Do not schedule work to send immediate packet on every receive 2020-04-07 12:41:16 -05:00
smbdirect.h cifs: smbd: Do not schedule work to send immediate packet on every receive 2020-04-07 12:41:16 -05:00
smbencrypt.c fs: cifs: move from the crypto cipher API to the new DES library interface 2019-08-22 14:57:34 +10:00
smberr.h
smbfsctl.h smb3: Add missing reparse tags 2019-09-24 23:31:32 -05:00
trace.c smb3: Cleanup license mess 2019-01-24 09:37:33 -06:00
trace.h cifs: Add tracepoints for errors on flush or fsync 2020-02-05 18:24:19 -06:00
transport.c cifs: Allocate encryption header through kmalloc 2020-03-29 16:42:54 -05:00
winucase.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xattr.c CIFS: Add support for setting owner info, dos attributes, and create time 2020-01-26 19:24:17 -06:00