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| author | Shirish Pargaonkar <shirishpargaonkar@gmail.com> | 2010-10-21 06:42:55 -0500 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-10-26 18:20:10 +0000 |
| commit | 21e733930be6458e0c33482b6783e7c15ba984eb (patch) | |
| tree | 1458ccf45529649267451a7e06fcd25d9c7ab0ac /fs/cifs/transport.c | |
| parent | 6573e9b73e19c0f6b9dfa2b399267ea0f42d6c6b (diff) | |
| download | linux-stable-21e733930be6458e0c33482b6783e7c15ba984eb.tar.gz linux-stable-21e733930be6458e0c33482b6783e7c15ba984eb.tar.bz2 linux-stable-21e733930be6458e0c33482b6783e7c15ba984eb.zip | |
NTLM auth and sign - Allocate session key/client response dynamically
Start calculating auth response within a session. Move/Add pertinet
data structures like session key, server challenge and ntlmv2_hash in
a session structure. We should do the calculations within a session
before copying session key and response over to server data
structures because a session setup can fail.
Only after a very first smb session succeeds, it copy/make its
session key, session key of smb connection. This key stays with
the smb connection throughout its life.
sequence_number within server is set to 0x2.
The authentication Message Authentication Key (mak) which consists
of session key followed by client response within structure session_key
is now dynamic. Every authentication type allocates the key + response
sized memory within its session structure and later either assigns or
frees it once the client response is sent and if session's session key
becomes connetion's session key.
ntlm/ntlmi authentication functions are rearranged. A function
named setup_ntlm_resp(), similar to setup_ntlmv2_resp(), replaces
function cifs_calculate_session_key().
size of CIFS_SESS_KEY_SIZE is changed to 16, to reflect the byte size
of the key it holds.
Reviewed-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/transport.c')
| -rw-r--r-- | fs/cifs/transport.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index a66c91eb6eb4..e0588cdf4cc5 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -543,7 +543,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(midQ->resp_buf, - &ses->server->session_key, + ses->server, midQ->sequence_number+1); if (rc) { cERROR(1, "Unexpected SMB signature"); @@ -731,7 +731,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - &ses->server->session_key, + ses->server, midQ->sequence_number+1); if (rc) { cERROR(1, "Unexpected SMB signature"); @@ -981,7 +981,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - &ses->server->session_key, + ses->server, midQ->sequence_number+1); if (rc) { cERROR(1, "Unexpected SMB signature"); |