[-v5,1/4] cifs NTLMv2/NTLMSSP Change variable name mac_key to session key to reflect the key it holds

Message ID	1284590203-5572-1-git-send-email-shirishpargaonkar@gmail.com (mailing list archive)
State	New, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o8FMfUXZ015917 for <patchwork-linux-cifs@patchwork.kernel.org>; Wed, 15 Sep 2010 22:41:30 GMT DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=cQN0pBFNY/MT8AMRHQWj1hbrq+7KAO8mQFQ/Xauqsf2EXAIfSL/mP99PDSAf5btx8X IE9w7KXb7GIYs/3feNfkp7327HVKRDFGnnl1E7AiPP17Pi3z9XvS6rvdGt5xfRfbLgX5 fAYa0w4xUd5X8cDcrO0A9kv0SgVPUdbFvgpQ8= From: shirishpargaonkar@gmail.com To: smfrench@gmail.com Cc: linux-cifs@vger.kernel.org, Shirish Pargaonkar <shirishpargaonkar@gmail.com> Subject: [PATCH -v5 1/4] cifs NTLMv2/NTLMSSP Change variable name mac_key to session key to reflect the key it holds Date: Wed, 15 Sep 2010 17:36:43 -0500 Message-Id: <1284590203-5572-1-git-send-email-shirishpargaonkar@gmail.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 35042d8..eed70ca 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -42,7 +42,7 @@ extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8, unsigned char *p24); static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu, - const struct mac_key *key, char *signature) + const struct session_key *key, char *signature) { struct MD5Context context; @@ -78,7 +78,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, server->sequence_number++; spin_unlock(&GlobalMid_Lock); - rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key, + rc = cifs_calculate_signature(cifs_pdu, &server->session_key, smb_signature); if (rc) memset(cifs_pdu->Signature.SecuritySignature, 0, 8); @@ -89,7 +89,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, } static int cifs_calc_signature2(const struct kvec *iov, int n_vec, - const struct mac_key *key, char *signature) + const struct session_key *key, char *signature) { struct MD5Context context; int i; @@ -145,7 +145,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, server->sequence_number++; spin_unlock(&GlobalMid_Lock); - rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key, + rc = cifs_calc_signature2(iov, n_vec, &server->session_key, smb_signature); if (rc) memset(cifs_pdu->Signature.SecuritySignature, 0, 8); @@ -156,14 +156,14 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, } int cifs_verify_signature(struct smb_hdr *cifs_pdu, - const struct mac_key *mac_key, + const struct session_key *session_key, __u32 expected_sequence_number) { unsigned int rc; char server_response_sig[8]; char what_we_think_sig_should_be[20]; - if ((cifs_pdu == NULL) || (mac_key == NULL)) + if (cifs_pdu == NULL || session_key == NULL) return -EINVAL; if (cifs_pdu->Command == SMB_COM_NEGOTIATE) @@ -192,7 +192,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu, cpu_to_le32(expected_sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; - rc = cifs_calculate_signature(cifs_pdu, mac_key, + rc = cifs_calculate_signature(cifs_pdu, session_key, what_we_think_sig_should_be); if (rc) @@ -209,7 +209,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu, } /* We fill in key by putting in 40 byte array which was allocated by caller */ -int cifs_calculate_mac_key(struct mac_key *key, const char *rn, +int cifs_calculate_session_key(struct session_key *key, const char *rn, const char *password) { char temp_key[16]; @@ -347,11 +347,11 @@ void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf, /* now calculate the MAC key for NTLMv2 */ hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); hmac_md5_update(resp_buf, 16, &context); - hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context); + hmac_md5_final(ses->server->session_key.data.ntlmv2.key, &context); - memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf, + memcpy(&ses->server->session_key.data.ntlmv2.resp, resp_buf, sizeof(struct ntlmv2_resp)); - ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp); + ses->server->session_key.len = 16 + sizeof(struct ntlmv2_resp); } void CalcNTLMv2_response(const struct cifsSesInfo *ses, diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 0cdfb8c..14dfa9a 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -97,7 +97,7 @@ enum protocolEnum { /* Netbios frames protocol not supported at this time */ }; -struct mac_key { +struct session_key { unsigned int len; union { char ntlm[CIFS_SESS_KEY_SIZE + 16]; @@ -182,7 +182,7 @@ struct TCP_Server_Info { /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* needed for CIFS PDU signature */ - struct mac_key mac_signing_key; + struct session_key session_key; char ntlmv2_hash[16]; unsigned long lstrp; /* when we got last response from this server */ u16 dialect; /* dialect index that server chose */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 1d60c65..3f4fa81 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -362,9 +362,9 @@ extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *); extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, __u32 *); extern int cifs_verify_signature(struct smb_hdr *, - const struct mac_key *mac_key, + const struct session_key *session_key, __u32 expected_sequence_number); -extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn, +extern int cifs_calculate_session_key(struct session_key *key, const char *rn, const char *pass); extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *); extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 0a57cb7..8882012 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -480,7 +480,7 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer, /* calculate session key, BB what about adding similar ntlmv2 path? */ SMBNTencrypt(ses->password, ses->server->cryptKey, ntlm_session_key); if (first) - cifs_calculate_mac_key(&ses->server->mac_signing_key, + cifs_calculate_session_key(&ses->server->session_key, ntlm_session_key, ses->password); memcpy(tmp, ntlm_session_key, CIFS_SESS_KEY_SIZE); @@ -690,7 +690,7 @@ ssetup_ntlmssp_authenticate: if (first_time) /* should this be moved into common code with similar ntlmv2 path? */ - cifs_calculate_mac_key(&ses->server->mac_signing_key, + cifs_calculate_session_key(&ses->server->session_key, ntlm_session_key, ses->password); /* copy session key */ @@ -765,15 +765,15 @@ ssetup_ntlmssp_authenticate: } /* bail out if key is too long */ if (msg->sesskey_len > - sizeof(ses->server->mac_signing_key.data.krb5)) { + sizeof(ses->server->session_key.data.krb5)) { cERROR(1, "Kerberos signing key too long (%u bytes)", msg->sesskey_len); rc = -EOVERFLOW; goto ssetup_exit; } if (first_time) { - ses->server->mac_signing_key.len = msg->sesskey_len; - memcpy(ses->server->mac_signing_key.data.krb5, + ses->server->session_key.len = msg->sesskey_len; + memcpy(ses->server->session_key.data.krb5, msg->data, msg->sesskey_len); } pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 82f78c4..a66c91e 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->mac_signing_key, + &ses->server->session_key, 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->mac_signing_key, + &ses->server->session_key, 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->mac_signing_key, + &ses->server->session_key, midQ->sequence_number+1); if (rc) { cERROR(1, "Unexpected SMB signature");

[-v5,1/4] cifs NTLMv2/NTLMSSP Change variable name mac_key to session key to reflect the key it holds

Commit Message

Patch