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| author | Ronnie Sahlberg <lsahlber@redhat.com> | 2018-06-12 08:00:58 +1000 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-06-15 02:38:08 -0500 |
| commit | c713c8770fa5bfbeaac088cc7b959c7a6ba79f93 (patch) | |
| tree | 76b49e4511ff8b37777552aa150caae3033ce77c /fs/cifs/smb2transport.c | |
| parent | d409014e4feeab486fb36b350abfc4c94de8be37 (diff) | |
| download | blackbird-op-linux-c713c8770fa5bfbeaac088cc7b959c7a6ba79f93.tar.gz blackbird-op-linux-c713c8770fa5bfbeaac088cc7b959c7a6ba79f93.zip | |
cifs: push rfc1002 generation down the stack
Move the generation of the 4 byte length field down the stack and
generate it immediately before we start writing the data to the socket.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2transport.c')
| -rw-r--r-- | fs/cifs/smb2transport.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index 349d5ccf854c..51b9437c3c7b 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -171,9 +171,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server) unsigned char smb2_signature[SMB2_HMACSHA256_SIZE]; unsigned char *sigptr = smb2_signature; struct kvec *iov = rqst->rq_iov; - int iov_hdr_index = rqst->rq_nvec > 1 ? 1 : 0; - struct smb2_sync_hdr *shdr = - (struct smb2_sync_hdr *)iov[iov_hdr_index].iov_base; + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[0].iov_base; struct cifs_ses *ses; ses = smb2_find_smb_ses(server, shdr->SessionId); @@ -204,7 +202,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server) return rc; } - rc = __cifs_calc_signature(rqst, iov_hdr_index, server, sigptr, + rc = __cifs_calc_signature(rqst, server, sigptr, &server->secmech.sdeschmacsha256->shash); if (!rc) @@ -414,9 +412,7 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server) unsigned char smb3_signature[SMB2_CMACAES_SIZE]; unsigned char *sigptr = smb3_signature; struct kvec *iov = rqst->rq_iov; - int iov_hdr_index = rqst->rq_nvec > 1 ? 1 : 0; - struct smb2_sync_hdr *shdr = - (struct smb2_sync_hdr *)iov[iov_hdr_index].iov_base; + struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[0].iov_base; struct cifs_ses *ses; ses = smb2_find_smb_ses(server, shdr->SessionId); @@ -447,7 +443,7 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server) return rc; } - rc = __cifs_calc_signature(rqst, iov_hdr_index, server, sigptr, + rc = __cifs_calc_signature(rqst, server, sigptr, &server->secmech.sdesccmacaes->shash); if (!rc) @@ -462,7 +458,7 @@ smb2_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server) { int rc = 0; struct smb2_sync_hdr *shdr = - (struct smb2_sync_hdr *)rqst->rq_iov[1].iov_base; + (struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base; if (!(shdr->Flags & SMB2_FLAGS_SIGNED) || server->tcpStatus == CifsNeedNegotiate) @@ -635,7 +631,7 @@ smb2_setup_request(struct cifs_ses *ses, struct smb_rqst *rqst) { int rc; struct smb2_sync_hdr *shdr = - (struct smb2_sync_hdr *)rqst->rq_iov[1].iov_base; + (struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base; struct mid_q_entry *mid; smb2_seq_num_into_buf(ses->server, shdr); @@ -656,7 +652,7 @@ smb2_setup_async_request(struct TCP_Server_Info *server, struct smb_rqst *rqst) { int rc; struct smb2_sync_hdr *shdr = - (struct smb2_sync_hdr *)rqst->rq_iov[1].iov_base; + (struct smb2_sync_hdr *)rqst->rq_iov[0].iov_base; struct mid_q_entry *mid; smb2_seq_num_into_buf(server, shdr); |
