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-rw-r--r--fs/cifs/Kconfig2
-rw-r--r--fs/cifs/asn1.c6
-rw-r--r--fs/cifs/cifs_unicode.h18
-rw-r--r--fs/cifs/cifs_uniupr.h16
-rw-r--r--fs/cifs/cifsencrypt.c475
-rw-r--r--fs/cifs/cifsglob.h25
-rw-r--r--fs/cifs/cifspdu.h7
-rw-r--r--fs/cifs/cifsproto.h12
-rw-r--r--fs/cifs/cifssmb.c13
-rw-r--r--fs/cifs/connect.c17
-rw-r--r--fs/cifs/dir.c157
-rw-r--r--fs/cifs/file.c3
-rw-r--r--fs/cifs/ntlmssp.h13
-rw-r--r--fs/cifs/sess.c131
-rw-r--r--fs/cifs/transport.c6
15 files changed, 622 insertions, 279 deletions
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 917b7d449bb2..0da1debd499d 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -2,6 +2,8 @@ config CIFS
2 tristate "CIFS support (advanced network filesystem, SMBFS successor)" 2 tristate "CIFS support (advanced network filesystem, SMBFS successor)"
3 depends on INET 3 depends on INET
4 select NLS 4 select NLS
5 select CRYPTO_MD5
6 select CRYPTO_ARC4
5 help 7 help
6 This is the client VFS module for the Common Internet File System 8 This is the client VFS module for the Common Internet File System
7 (CIFS) protocol which is the successor to the Server Message Block 9 (CIFS) protocol which is the successor to the Server Message Block
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index cfd1ce34e0bc..21f0fbd86989 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -597,13 +597,13 @@ decode_negTokenInit(unsigned char *security_blob, int length,
597 if (compare_oid(oid, oidlen, MSKRB5_OID, 597 if (compare_oid(oid, oidlen, MSKRB5_OID,
598 MSKRB5_OID_LEN)) 598 MSKRB5_OID_LEN))
599 server->sec_mskerberos = true; 599 server->sec_mskerberos = true;
600 else if (compare_oid(oid, oidlen, KRB5U2U_OID, 600 if (compare_oid(oid, oidlen, KRB5U2U_OID,
601 KRB5U2U_OID_LEN)) 601 KRB5U2U_OID_LEN))
602 server->sec_kerberosu2u = true; 602 server->sec_kerberosu2u = true;
603 else if (compare_oid(oid, oidlen, KRB5_OID, 603 if (compare_oid(oid, oidlen, KRB5_OID,
604 KRB5_OID_LEN)) 604 KRB5_OID_LEN))
605 server->sec_kerberos = true; 605 server->sec_kerberos = true;
606 else if (compare_oid(oid, oidlen, NTLMSSP_OID, 606 if (compare_oid(oid, oidlen, NTLMSSP_OID,
607 NTLMSSP_OID_LEN)) 607 NTLMSSP_OID_LEN))
608 server->sec_ntlmssp = true; 608 server->sec_ntlmssp = true;
609 609
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 650638275a6f..7fe6b52df507 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -30,6 +30,8 @@
30 * This is a compressed table of upper and lower case conversion. 30 * This is a compressed table of upper and lower case conversion.
31 * 31 *
32 */ 32 */
33#ifndef _CIFS_UNICODE_H
34#define _CIFS_UNICODE_H
33 35
34#include <asm/byteorder.h> 36#include <asm/byteorder.h>
35#include <linux/types.h> 37#include <linux/types.h>
@@ -67,8 +69,8 @@ extern const struct UniCaseRange CifsUniUpperRange[];
67#endif /* UNIUPR_NOUPPER */ 69#endif /* UNIUPR_NOUPPER */
68 70
69#ifndef UNIUPR_NOLOWER 71#ifndef UNIUPR_NOLOWER
70extern signed char UniLowerTable[512]; 72extern signed char CifsUniLowerTable[512];
71extern struct UniCaseRange UniLowerRange[]; 73extern const struct UniCaseRange CifsUniLowerRange[];
72#endif /* UNIUPR_NOLOWER */ 74#endif /* UNIUPR_NOLOWER */
73 75
74#ifdef __KERNEL__ 76#ifdef __KERNEL__
@@ -337,15 +339,15 @@ UniStrupr(register wchar_t *upin)
337 * UniTolower: Convert a unicode character to lower case 339 * UniTolower: Convert a unicode character to lower case
338 */ 340 */
339static inline wchar_t 341static inline wchar_t
340UniTolower(wchar_t uc) 342UniTolower(register wchar_t uc)
341{ 343{
342 register struct UniCaseRange *rp; 344 register const struct UniCaseRange *rp;
343 345
344 if (uc < sizeof(UniLowerTable)) { 346 if (uc < sizeof(CifsUniLowerTable)) {
345 /* Latin characters */ 347 /* Latin characters */
346 return uc + UniLowerTable[uc]; /* Use base tables */ 348 return uc + CifsUniLowerTable[uc]; /* Use base tables */
347 } else { 349 } else {
348 rp = UniLowerRange; /* Use range tables */ 350 rp = CifsUniLowerRange; /* Use range tables */
349 while (rp->start) { 351 while (rp->start) {
350 if (uc < rp->start) /* Before start of range */ 352 if (uc < rp->start) /* Before start of range */
351 return uc; /* Uppercase = input */ 353 return uc; /* Uppercase = input */
@@ -374,3 +376,5 @@ UniStrlwr(register wchar_t *upin)
374} 376}
375 377
376#endif 378#endif
379
380#endif /* _CIFS_UNICODE_H */
diff --git a/fs/cifs/cifs_uniupr.h b/fs/cifs/cifs_uniupr.h
index 18a9d978e519..0ac7c5a8633a 100644
--- a/fs/cifs/cifs_uniupr.h
+++ b/fs/cifs/cifs_uniupr.h
@@ -140,7 +140,7 @@ const struct UniCaseRange CifsUniUpperRange[] = {
140/* 140/*
141 * Latin lower case 141 * Latin lower case
142 */ 142 */
143static signed char CifsUniLowerTable[512] = { 143signed char CifsUniLowerTable[512] = {
144 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 000-00f */ 144 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 000-00f */
145 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 010-01f */ 145 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 010-01f */
146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 020-02f */ 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 020-02f */
@@ -242,12 +242,12 @@ static signed char UniCaseRangeLff20[27] = {
242/* 242/*
243 * Lower Case Range 243 * Lower Case Range
244 */ 244 */
245static const struct UniCaseRange CifsUniLowerRange[] = { 245const struct UniCaseRange CifsUniLowerRange[] = {
246 0x0380, 0x03ab, UniCaseRangeL0380, 246 {0x0380, 0x03ab, UniCaseRangeL0380},
247 0x0400, 0x042f, UniCaseRangeL0400, 247 {0x0400, 0x042f, UniCaseRangeL0400},
248 0x0490, 0x04cb, UniCaseRangeL0490, 248 {0x0490, 0x04cb, UniCaseRangeL0490},
249 0x1e00, 0x1ff7, UniCaseRangeL1e00, 249 {0x1e00, 0x1ff7, UniCaseRangeL1e00},
250 0xff20, 0xff3a, UniCaseRangeLff20, 250 {0xff20, 0xff3a, UniCaseRangeLff20},
251 0, 0, 0 251 {0}
252}; 252};
253#endif 253#endif
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 847628dfdc44..709f2296bdb4 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -27,6 +27,7 @@
27#include "md5.h" 27#include "md5.h"
28#include "cifs_unicode.h" 28#include "cifs_unicode.h"
29#include "cifsproto.h" 29#include "cifsproto.h"
30#include "ntlmssp.h"
30#include <linux/ctype.h> 31#include <linux/ctype.h>
31#include <linux/random.h> 32#include <linux/random.h>
32 33
@@ -42,21 +43,43 @@ extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
42 unsigned char *p24); 43 unsigned char *p24);
43 44
44static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu, 45static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
45 const struct mac_key *key, char *signature) 46 struct TCP_Server_Info *server, char *signature)
46{ 47{
47 struct MD5Context context; 48 int rc;
48 49
49 if ((cifs_pdu == NULL) || (signature == NULL) || (key == NULL)) 50 if (cifs_pdu == NULL || server == NULL || signature == NULL)
50 return -EINVAL; 51 return -EINVAL;
51 52
52 cifs_MD5_init(&context); 53 if (!server->ntlmssp.sdescmd5) {
53 cifs_MD5_update(&context, (char *)&key->data, key->len); 54 cERROR(1,
54 cifs_MD5_update(&context, cifs_pdu->Protocol, cifs_pdu->smb_buf_length); 55 "cifs_calculate_signature: can't generate signature\n");
56 return -1;
57 }
55 58
56 cifs_MD5_final(signature, &context); 59 rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
57 return 0; 60 if (rc) {
61 cERROR(1, "cifs_calculate_signature: oould not init md5\n");
62 return rc;
63 }
64
65 if (server->secType == RawNTLMSSP)
66 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
67 server->session_key.data.ntlmv2.key,
68 CIFS_NTLMV2_SESSKEY_SIZE);
69 else
70 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
71 (char *)&server->session_key.data,
72 server->session_key.len);
73
74 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
75 cifs_pdu->Protocol, cifs_pdu->smb_buf_length);
76
77 rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
78
79 return rc;
58} 80}
59 81
82
60int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, 83int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
61 __u32 *pexpected_response_sequence_number) 84 __u32 *pexpected_response_sequence_number)
62{ 85{
@@ -78,8 +101,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
78 server->sequence_number++; 101 server->sequence_number++;
79 spin_unlock(&GlobalMid_Lock); 102 spin_unlock(&GlobalMid_Lock);
80 103
81 rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key, 104 rc = cifs_calculate_signature(cifs_pdu, server, smb_signature);
82 smb_signature);
83 if (rc) 105 if (rc)
84 memset(cifs_pdu->Signature.SecuritySignature, 0, 8); 106 memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
85 else 107 else
@@ -89,21 +111,39 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
89} 111}
90 112
91static int cifs_calc_signature2(const struct kvec *iov, int n_vec, 113static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
92 const struct mac_key *key, char *signature) 114 struct TCP_Server_Info *server, char *signature)
93{ 115{
94 struct MD5Context context;
95 int i; 116 int i;
117 int rc;
96 118
97 if ((iov == NULL) || (signature == NULL) || (key == NULL)) 119 if (iov == NULL || server == NULL || signature == NULL)
98 return -EINVAL; 120 return -EINVAL;
99 121
100 cifs_MD5_init(&context); 122 if (!server->ntlmssp.sdescmd5) {
101 cifs_MD5_update(&context, (char *)&key->data, key->len); 123 cERROR(1, "cifs_calc_signature2: can't generate signature\n");
124 return -1;
125 }
126
127 rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
128 if (rc) {
129 cERROR(1, "cifs_calc_signature2: oould not init md5\n");
130 return rc;
131 }
132
133 if (server->secType == RawNTLMSSP)
134 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
135 server->session_key.data.ntlmv2.key,
136 CIFS_NTLMV2_SESSKEY_SIZE);
137 else
138 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
139 (char *)&server->session_key.data,
140 server->session_key.len);
141
102 for (i = 0; i < n_vec; i++) { 142 for (i = 0; i < n_vec; i++) {
103 if (iov[i].iov_len == 0) 143 if (iov[i].iov_len == 0)
104 continue; 144 continue;
105 if (iov[i].iov_base == NULL) { 145 if (iov[i].iov_base == NULL) {
106 cERROR(1, "null iovec entry"); 146 cERROR(1, "cifs_calc_signature2: null iovec entry");
107 return -EIO; 147 return -EIO;
108 } 148 }
109 /* The first entry includes a length field (which does not get 149 /* The first entry includes a length field (which does not get
@@ -111,18 +151,18 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
111 if (i == 0) { 151 if (i == 0) {
112 if (iov[0].iov_len <= 8) /* cmd field at offset 9 */ 152 if (iov[0].iov_len <= 8) /* cmd field at offset 9 */
113 break; /* nothing to sign or corrupt header */ 153 break; /* nothing to sign or corrupt header */
114 cifs_MD5_update(&context, iov[0].iov_base+4, 154 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
115 iov[0].iov_len-4); 155 iov[i].iov_base + 4, iov[i].iov_len - 4);
116 } else 156 } else
117 cifs_MD5_update(&context, iov[i].iov_base, iov[i].iov_len); 157 crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
158 iov[i].iov_base, iov[i].iov_len);
118 } 159 }
119 160
120 cifs_MD5_final(signature, &context); 161 rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
121 162
122 return 0; 163 return rc;
123} 164}
124 165
125
126int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, 166int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
127 __u32 *pexpected_response_sequence_number) 167 __u32 *pexpected_response_sequence_number)
128{ 168{
@@ -145,8 +185,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
145 server->sequence_number++; 185 server->sequence_number++;
146 spin_unlock(&GlobalMid_Lock); 186 spin_unlock(&GlobalMid_Lock);
147 187
148 rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key, 188 rc = cifs_calc_signature2(iov, n_vec, server, smb_signature);
149 smb_signature);
150 if (rc) 189 if (rc)
151 memset(cifs_pdu->Signature.SecuritySignature, 0, 8); 190 memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
152 else 191 else
@@ -156,14 +195,14 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
156} 195}
157 196
158int cifs_verify_signature(struct smb_hdr *cifs_pdu, 197int cifs_verify_signature(struct smb_hdr *cifs_pdu,
159 const struct mac_key *mac_key, 198 struct TCP_Server_Info *server,
160 __u32 expected_sequence_number) 199 __u32 expected_sequence_number)
161{ 200{
162 unsigned int rc; 201 int rc;
163 char server_response_sig[8]; 202 char server_response_sig[8];
164 char what_we_think_sig_should_be[20]; 203 char what_we_think_sig_should_be[20];
165 204
166 if ((cifs_pdu == NULL) || (mac_key == NULL)) 205 if (cifs_pdu == NULL || server == NULL)
167 return -EINVAL; 206 return -EINVAL;
168 207
169 if (cifs_pdu->Command == SMB_COM_NEGOTIATE) 208 if (cifs_pdu->Command == SMB_COM_NEGOTIATE)
@@ -192,7 +231,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
192 cpu_to_le32(expected_sequence_number); 231 cpu_to_le32(expected_sequence_number);
193 cifs_pdu->Signature.Sequence.Reserved = 0; 232 cifs_pdu->Signature.Sequence.Reserved = 0;
194 233
195 rc = cifs_calculate_signature(cifs_pdu, mac_key, 234 rc = cifs_calculate_signature(cifs_pdu, server,
196 what_we_think_sig_should_be); 235 what_we_think_sig_should_be);
197 236
198 if (rc) 237 if (rc)
@@ -209,7 +248,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
209} 248}
210 249
211/* We fill in key by putting in 40 byte array which was allocated by caller */ 250/* We fill in key by putting in 40 byte array which was allocated by caller */
212int cifs_calculate_mac_key(struct mac_key *key, const char *rn, 251int cifs_calculate_session_key(struct session_key *key, const char *rn,
213 const char *password) 252 const char *password)
214{ 253{
215 char temp_key[16]; 254 char temp_key[16];
@@ -223,63 +262,6 @@ int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
223 return 0; 262 return 0;
224} 263}
225 264
226int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *ses,
227 const struct nls_table *nls_info)
228{
229 char temp_hash[16];
230 struct HMACMD5Context ctx;
231 char *ucase_buf;
232 __le16 *unicode_buf;
233 unsigned int i, user_name_len, dom_name_len;
234
235 if (ses == NULL)
236 return -EINVAL;
237
238 E_md4hash(ses->password, temp_hash);
239
240 hmac_md5_init_limK_to_64(temp_hash, 16, &ctx);
241 user_name_len = strlen(ses->userName);
242 if (user_name_len > MAX_USERNAME_SIZE)
243 return -EINVAL;
244 if (ses->domainName == NULL)
245 return -EINVAL; /* BB should we use CIFS_LINUX_DOM */
246 dom_name_len = strlen(ses->domainName);
247 if (dom_name_len > MAX_USERNAME_SIZE)
248 return -EINVAL;
249
250 ucase_buf = kmalloc((MAX_USERNAME_SIZE+1), GFP_KERNEL);
251 if (ucase_buf == NULL)
252 return -ENOMEM;
253 unicode_buf = kmalloc((MAX_USERNAME_SIZE+1)*4, GFP_KERNEL);
254 if (unicode_buf == NULL) {
255 kfree(ucase_buf);
256 return -ENOMEM;
257 }
258
259 for (i = 0; i < user_name_len; i++)
260 ucase_buf[i] = nls_info->charset2upper[(int)ses->userName[i]];
261 ucase_buf[i] = 0;
262 user_name_len = cifs_strtoUCS(unicode_buf, ucase_buf,
263 MAX_USERNAME_SIZE*2, nls_info);
264 unicode_buf[user_name_len] = 0;
265 user_name_len++;
266
267 for (i = 0; i < dom_name_len; i++)
268 ucase_buf[i] = nls_info->charset2upper[(int)ses->domainName[i]];
269 ucase_buf[i] = 0;
270 dom_name_len = cifs_strtoUCS(unicode_buf+user_name_len, ucase_buf,
271 MAX_USERNAME_SIZE*2, nls_info);
272
273 unicode_buf[user_name_len + dom_name_len] = 0;
274 hmac_md5_update((const unsigned char *) unicode_buf,
275 (user_name_len+dom_name_len)*2, &ctx);
276
277 hmac_md5_final(ses->server->ntlmv2_hash, &ctx);
278 kfree(ucase_buf);
279 kfree(unicode_buf);
280 return 0;
281}
282
283#ifdef CONFIG_CIFS_WEAK_PW_HASH 265#ifdef CONFIG_CIFS_WEAK_PW_HASH
284void calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt, 266void calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
285 char *lnm_session_key) 267 char *lnm_session_key)
@@ -324,38 +306,52 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
324{ 306{
325 int rc = 0; 307 int rc = 0;
326 int len; 308 int len;
327 char nt_hash[16]; 309 char nt_hash[CIFS_NTHASH_SIZE];
328 struct HMACMD5Context *pctxt;
329 wchar_t *user; 310 wchar_t *user;
330 wchar_t *domain; 311 wchar_t *domain;
312 wchar_t *server;
331 313
332 pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL); 314 if (!ses->server->ntlmssp.sdeschmacmd5) {
333 315 cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
334 if (pctxt == NULL) 316 return -1;
335 return -ENOMEM; 317 }
336 318
337 /* calculate md4 hash of password */ 319 /* calculate md4 hash of password */
338 E_md4hash(ses->password, nt_hash); 320 E_md4hash(ses->password, nt_hash);
339 321
340 /* convert Domainname to unicode and uppercase */ 322 crypto_shash_setkey(ses->server->ntlmssp.hmacmd5, nt_hash,
341 hmac_md5_init_limK_to_64(nt_hash, 16, pctxt); 323 CIFS_NTHASH_SIZE);
324
325 rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
326 if (rc) {
327 cERROR(1, "calc_ntlmv2_hash: could not init hmacmd5\n");
328 return rc;
329 }
342 330
343 /* convert ses->userName to unicode and uppercase */ 331 /* convert ses->userName to unicode and uppercase */
344 len = strlen(ses->userName); 332 len = strlen(ses->userName);
345 user = kmalloc(2 + (len * 2), GFP_KERNEL); 333 user = kmalloc(2 + (len * 2), GFP_KERNEL);
346 if (user == NULL) 334 if (user == NULL) {
335 cERROR(1, "calc_ntlmv2_hash: user mem alloc failure\n");
336 rc = -ENOMEM;
347 goto calc_exit_2; 337 goto calc_exit_2;
338 }
348 len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp); 339 len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp);
349 UniStrupr(user); 340 UniStrupr(user);
350 hmac_md5_update((char *)user, 2*len, pctxt); 341
342 crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
343 (char *)user, 2 * len);
351 344
352 /* convert ses->domainName to unicode and uppercase */ 345 /* convert ses->domainName to unicode and uppercase */
353 if (ses->domainName) { 346 if (ses->domainName) {
354 len = strlen(ses->domainName); 347 len = strlen(ses->domainName);
355 348
356 domain = kmalloc(2 + (len * 2), GFP_KERNEL); 349 domain = kmalloc(2 + (len * 2), GFP_KERNEL);
357 if (domain == NULL) 350 if (domain == NULL) {
351 cERROR(1, "calc_ntlmv2_hash: domain mem alloc failure");
352 rc = -ENOMEM;
358 goto calc_exit_1; 353 goto calc_exit_1;
354 }
359 len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len, 355 len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len,
360 nls_cp); 356 nls_cp);
361 /* the following line was removed since it didn't work well 357 /* the following line was removed since it didn't work well
@@ -363,65 +359,292 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
363 Maybe converting the domain name earlier makes sense */ 359 Maybe converting the domain name earlier makes sense */
364 /* UniStrupr(domain); */ 360 /* UniStrupr(domain); */
365 361
366 hmac_md5_update((char *)domain, 2*len, pctxt); 362 crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
363 (char *)domain, 2 * len);
367 364
368 kfree(domain); 365 kfree(domain);
366 } else if (ses->serverName) {
367 len = strlen(ses->serverName);
368
369 server = kmalloc(2 + (len * 2), GFP_KERNEL);
370 if (server == NULL) {
371 cERROR(1, "calc_ntlmv2_hash: server mem alloc failure");
372 rc = -ENOMEM;
373 goto calc_exit_1;
374 }
375 len = cifs_strtoUCS((__le16 *)server, ses->serverName, len,
376 nls_cp);
377 /* the following line was removed since it didn't work well
378 with lower cased domain name that passed as an option.
379 Maybe converting the domain name earlier makes sense */
380 /* UniStrupr(domain); */
381
382 crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
383 (char *)server, 2 * len);
384
385 kfree(server);
369 } 386 }
387
388 rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
389 ses->server->ntlmv2_hash);
390
370calc_exit_1: 391calc_exit_1:
371 kfree(user); 392 kfree(user);
372calc_exit_2: 393calc_exit_2:
373 /* BB FIXME what about bytes 24 through 40 of the signing key? 394 /* BB FIXME what about bytes 24 through 40 of the signing key?
374 compare with the NTLM example */ 395 compare with the NTLM example */
375 hmac_md5_final(ses->server->ntlmv2_hash, pctxt);
376 396
377 kfree(pctxt);
378 return rc; 397 return rc;
379} 398}
380 399
381void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf, 400static int
382 const struct nls_table *nls_cp) 401find_domain_name(struct cifsSesInfo *ses)
402{
403 int rc = 0;
404 unsigned int attrsize;
405 unsigned int type;
406 unsigned char *blobptr;
407 struct ntlmssp2_name *attrptr;
408
409 if (ses->server->tiblob) {
410 blobptr = ses->server->tiblob;
411 attrptr = (struct ntlmssp2_name *) blobptr;
412
413 while ((type = attrptr->type) != 0) {
414 blobptr += 2; /* advance attr type */
415 attrsize = attrptr->length;
416 blobptr += 2; /* advance attr size */
417 if (type == NTLMSSP_AV_NB_DOMAIN_NAME) {
418 if (!ses->domainName) {
419 ses->domainName =
420 kmalloc(attrptr->length + 1,
421 GFP_KERNEL);
422 if (!ses->domainName)
423 return -ENOMEM;
424 cifs_from_ucs2(ses->domainName,
425 (__le16 *)blobptr,
426 attrptr->length,
427 attrptr->length,
428 load_nls_default(), false);
429 }
430 }
431 blobptr += attrsize; /* advance attr value */
432 attrptr = (struct ntlmssp2_name *) blobptr;
433 }
434 } else {
435 ses->server->tilen = 2 * sizeof(struct ntlmssp2_name);
436 ses->server->tiblob = kmalloc(ses->server->tilen, GFP_KERNEL);
437 if (!ses->server->tiblob) {
438 ses->server->tilen = 0;
439 cERROR(1, "Challenge target info allocation failure");
440 return -ENOMEM;
441 }
442 memset(ses->server->tiblob, 0x0, ses->server->tilen);
443 attrptr = (struct ntlmssp2_name *) ses->server->tiblob;
444 attrptr->type = cpu_to_le16(NTLMSSP_DOMAIN_TYPE);
445 }
446
447 return rc;
448}
449
450static int
451CalcNTLMv2_response(const struct TCP_Server_Info *server,
452 char *v2_session_response)
383{ 453{
384 int rc; 454 int rc;
455
456 if (!server->ntlmssp.sdeschmacmd5) {
457 cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
458 return -1;
459 }
460
461 crypto_shash_setkey(server->ntlmssp.hmacmd5, server->ntlmv2_hash,
462 CIFS_HMAC_MD5_HASH_SIZE);
463
464 rc = crypto_shash_init(&server->ntlmssp.sdeschmacmd5->shash);
465 if (rc) {
466 cERROR(1, "CalcNTLMv2_response: could not init hmacmd5");
467 return rc;
468 }
469
470 memcpy(v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
471 server->cryptKey, CIFS_SERVER_CHALLENGE_SIZE);
472 crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
473 v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
474 sizeof(struct ntlmv2_resp) - CIFS_SERVER_CHALLENGE_SIZE);
475
476 if (server->tilen)
477 crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
478 server->tiblob, server->tilen);
479
480 rc = crypto_shash_final(&server->ntlmssp.sdeschmacmd5->shash,
481 v2_session_response);
482
483 return rc;
484}
485
486int
487setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
488 const struct nls_table *nls_cp)
489{
490 int rc = 0;
385 struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf; 491 struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf;
386 struct HMACMD5Context context;
387 492
388 buf->blob_signature = cpu_to_le32(0x00000101); 493 buf->blob_signature = cpu_to_le32(0x00000101);
389 buf->reserved = 0; 494 buf->reserved = 0;
390 buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); 495 buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
391 get_random_bytes(&buf->client_chal, sizeof(buf->client_chal)); 496 get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
392 buf->reserved2 = 0; 497 buf->reserved2 = 0;
393 buf->names[0].type = cpu_to_le16(NTLMSSP_DOMAIN_TYPE); 498
394 buf->names[0].length = 0; 499 if (!ses->domainName) {
395 buf->names[1].type = 0; 500 rc = find_domain_name(ses);
396 buf->names[1].length = 0; 501 if (rc) {
502 cERROR(1, "could not get domain/server name rc %d", rc);
503 return rc;
504 }
505 }
397 506
398 /* calculate buf->ntlmv2_hash */ 507 /* calculate buf->ntlmv2_hash */
399 rc = calc_ntlmv2_hash(ses, nls_cp); 508 rc = calc_ntlmv2_hash(ses, nls_cp);
400 if (rc) 509 if (rc) {
401 cERROR(1, "could not get v2 hash rc %d", rc); 510 cERROR(1, "could not get v2 hash rc %d", rc);
402 CalcNTLMv2_response(ses, resp_buf); 511 return rc;
512 }
513 rc = CalcNTLMv2_response(ses->server, resp_buf);
514 if (rc) {
515 cERROR(1, "could not get v2 hash rc %d", rc);
516 return rc;
517 }
403 518
404 /* now calculate the MAC key for NTLMv2 */ 519 if (!ses->server->ntlmssp.sdeschmacmd5) {
405 hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); 520 cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
406 hmac_md5_update(resp_buf, 16, &context); 521 return -1;
407 hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context); 522 }
408 523
409 memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf, 524 crypto_shash_setkey(ses->server->ntlmssp.hmacmd5,
410 sizeof(struct ntlmv2_resp)); 525 ses->server->ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
411 ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp); 526
527 rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
528 if (rc) {
529 cERROR(1, "setup_ntlmv2_rsp: could not init hmacmd5\n");
530 return rc;
531 }
532
533 crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
534 resp_buf, CIFS_HMAC_MD5_HASH_SIZE);
535
536 rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
537 ses->server->session_key.data.ntlmv2.key);
538
539 memcpy(&ses->server->session_key.data.ntlmv2.resp, resp_buf,
540 sizeof(struct ntlmv2_resp));
541 ses->server->session_key.len = 16 + sizeof(struct ntlmv2_resp);
542
543 return rc;
412} 544}
413 545
414void CalcNTLMv2_response(const struct cifsSesInfo *ses, 546int
415 char *v2_session_response) 547calc_seckey(struct TCP_Server_Info *server)
416{ 548{
417 struct HMACMD5Context context; 549 int rc;
418 /* rest of v2 struct already generated */ 550 unsigned char sec_key[CIFS_NTLMV2_SESSKEY_SIZE];
419 memcpy(v2_session_response + 8, ses->server->cryptKey, 8); 551 struct crypto_blkcipher *tfm_arc4;
420 hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); 552 struct scatterlist sgin, sgout;
553 struct blkcipher_desc desc;
554
555 get_random_bytes(sec_key, CIFS_NTLMV2_SESSKEY_SIZE);
556
557 tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)",
558 0, CRYPTO_ALG_ASYNC);
559 if (!tfm_arc4 || IS_ERR(tfm_arc4)) {
560 cERROR(1, "could not allocate " "master crypto API arc4\n");
561 return 1;
562 }
563
564 desc.tfm = tfm_arc4;
565
566 crypto_blkcipher_setkey(tfm_arc4,
567 server->session_key.data.ntlmv2.key, CIFS_CPHTXT_SIZE);
568 sg_init_one(&sgin, sec_key, CIFS_CPHTXT_SIZE);
569 sg_init_one(&sgout, server->ntlmssp.ciphertext, CIFS_CPHTXT_SIZE);
570 rc = crypto_blkcipher_encrypt(&desc, &sgout, &sgin, CIFS_CPHTXT_SIZE);
421 571
422 hmac_md5_update(v2_session_response+8, 572 if (!rc)
423 sizeof(struct ntlmv2_resp) - 8, &context); 573 memcpy(server->session_key.data.ntlmv2.key,
574 sec_key, CIFS_NTLMV2_SESSKEY_SIZE);
575
576 crypto_free_blkcipher(tfm_arc4);
577
578 return 0;
579}
424 580
425 hmac_md5_final(v2_session_response, &context); 581void
426/* cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); */ 582cifs_crypto_shash_release(struct TCP_Server_Info *server)
583{
584 if (server->ntlmssp.md5)
585 crypto_free_shash(server->ntlmssp.md5);
586
587 if (server->ntlmssp.hmacmd5)
588 crypto_free_shash(server->ntlmssp.hmacmd5);
589
590 kfree(server->ntlmssp.sdeschmacmd5);
591
592 kfree(server->ntlmssp.sdescmd5);
593}
594
595int
596cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
597{
598 int rc;
599 unsigned int size;
600
601 server->ntlmssp.hmacmd5 = crypto_alloc_shash("hmac(md5)", 0, 0);
602 if (!server->ntlmssp.hmacmd5 ||
603 IS_ERR(server->ntlmssp.hmacmd5)) {
604 cERROR(1, "could not allocate crypto hmacmd5\n");
605 return 1;
606 }
607
608 server->ntlmssp.md5 = crypto_alloc_shash("md5", 0, 0);
609 if (!server->ntlmssp.md5 || IS_ERR(server->ntlmssp.md5)) {
610 cERROR(1, "could not allocate crypto md5\n");
611 rc = 1;
612 goto cifs_crypto_shash_allocate_ret1;
613 }
614
615 size = sizeof(struct shash_desc) +
616 crypto_shash_descsize(server->ntlmssp.hmacmd5);
617 server->ntlmssp.sdeschmacmd5 = kmalloc(size, GFP_KERNEL);
618 if (!server->ntlmssp.sdeschmacmd5) {
619 cERROR(1, "cifs_crypto_shash_allocate: can't alloc hmacmd5\n");
620 rc = -ENOMEM;
621 goto cifs_crypto_shash_allocate_ret2;
622 }
623 server->ntlmssp.sdeschmacmd5->shash.tfm = server->ntlmssp.hmacmd5;
624 server->ntlmssp.sdeschmacmd5->shash.flags = 0x0;
625
626
627 size = sizeof(struct shash_desc) +
628 crypto_shash_descsize(server->ntlmssp.md5);
629 server->ntlmssp.sdescmd5 = kmalloc(size, GFP_KERNEL);
630 if (!server->ntlmssp.sdescmd5) {
631 cERROR(1, "cifs_crypto_shash_allocate: can't alloc md5\n");
632 rc = -ENOMEM;
633 goto cifs_crypto_shash_allocate_ret3;
634 }
635 server->ntlmssp.sdescmd5->shash.tfm = server->ntlmssp.md5;
636 server->ntlmssp.sdescmd5->shash.flags = 0x0;
637
638 return 0;
639
640cifs_crypto_shash_allocate_ret3:
641 kfree(server->ntlmssp.sdeschmacmd5);
642
643cifs_crypto_shash_allocate_ret2:
644 crypto_free_shash(server->ntlmssp.md5);
645
646cifs_crypto_shash_allocate_ret1:
647 crypto_free_shash(server->ntlmssp.hmacmd5);
648
649 return rc;
427} 650}
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 0cdfb8c32ac6..c9d0cfc086eb 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -25,6 +25,9 @@
25#include <linux/workqueue.h> 25#include <linux/workqueue.h>
26#include "cifs_fs_sb.h" 26#include "cifs_fs_sb.h"
27#include "cifsacl.h" 27#include "cifsacl.h"
28#include <crypto/internal/hash.h>
29#include <linux/scatterlist.h>
30
28/* 31/*
29 * The sizes of various internal tables and strings 32 * The sizes of various internal tables and strings
30 */ 33 */
@@ -97,7 +100,7 @@ enum protocolEnum {
97 /* Netbios frames protocol not supported at this time */ 100 /* Netbios frames protocol not supported at this time */
98}; 101};
99 102
100struct mac_key { 103struct session_key {
101 unsigned int len; 104 unsigned int len;
102 union { 105 union {
103 char ntlm[CIFS_SESS_KEY_SIZE + 16]; 106 char ntlm[CIFS_SESS_KEY_SIZE + 16];
@@ -120,6 +123,21 @@ struct cifs_cred {
120 struct cifs_ace *aces; 123 struct cifs_ace *aces;
121}; 124};
122 125
126struct sdesc {
127 struct shash_desc shash;
128 char ctx[];
129};
130
131struct ntlmssp_auth {
132 __u32 client_flags;
133 __u32 server_flags;
134 unsigned char ciphertext[CIFS_CPHTXT_SIZE];
135 struct crypto_shash *hmacmd5;
136 struct crypto_shash *md5;
137 struct sdesc *sdeschmacmd5;
138 struct sdesc *sdescmd5;
139};
140
123/* 141/*
124 ***************************************************************** 142 *****************************************************************
125 * Except the CIFS PDUs themselves all the 143 * Except the CIFS PDUs themselves all the
@@ -182,11 +200,14 @@ struct TCP_Server_Info {
182 /* 16th byte of RFC1001 workstation name is always null */ 200 /* 16th byte of RFC1001 workstation name is always null */
183 char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; 201 char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
184 __u32 sequence_number; /* needed for CIFS PDU signature */ 202 __u32 sequence_number; /* needed for CIFS PDU signature */
185 struct mac_key mac_signing_key; 203 struct session_key session_key;
186 char ntlmv2_hash[16]; 204 char ntlmv2_hash[16];
187 unsigned long lstrp; /* when we got last response from this server */ 205 unsigned long lstrp; /* when we got last response from this server */
188 u16 dialect; /* dialect index that server chose */ 206 u16 dialect; /* dialect index that server chose */
189 /* extended security flavors that server supports */ 207 /* extended security flavors that server supports */
208 unsigned int tilen; /* length of the target info blob */
209 unsigned char *tiblob; /* target info blob in challenge response */
210 struct ntlmssp_auth ntlmssp; /* various keys, ciphers, flags */
190 bool sec_kerberos; /* supports plain Kerberos */ 211 bool sec_kerberos; /* supports plain Kerberos */
191 bool sec_mskerberos; /* supports legacy MS Kerberos */ 212 bool sec_mskerberos; /* supports legacy MS Kerberos */
192 bool sec_kerberosu2u; /* supports U2U Kerberos */ 213 bool sec_kerberosu2u; /* supports U2U Kerberos */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 14d036d8db11..320e0fd0ba7b 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -134,6 +134,12 @@
134 * Size of the session key (crypto key encrypted with the password 134 * Size of the session key (crypto key encrypted with the password
135 */ 135 */
136#define CIFS_SESS_KEY_SIZE (24) 136#define CIFS_SESS_KEY_SIZE (24)
137#define CIFS_CLIENT_CHALLENGE_SIZE (8)
138#define CIFS_SERVER_CHALLENGE_SIZE (8)
139#define CIFS_HMAC_MD5_HASH_SIZE (16)
140#define CIFS_CPHTXT_SIZE (16)
141#define CIFS_NTLMV2_SESSKEY_SIZE (16)
142#define CIFS_NTHASH_SIZE (16)
137 143
138/* 144/*
139 * Maximum user name length 145 * Maximum user name length
@@ -663,7 +669,6 @@ struct ntlmv2_resp {
663 __le64 time; 669 __le64 time;
664 __u64 client_chal; /* random */ 670 __u64 client_chal; /* random */
665 __u32 reserved2; 671 __u32 reserved2;
666 struct ntlmssp2_name names[2];
667 /* array of name entries could follow ending in minimum 4 byte struct */ 672 /* array of name entries could follow ending in minimum 4 byte struct */
668} __attribute__((packed)); 673} __attribute__((packed));
669 674
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 1f5450814087..1378d9133844 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -361,15 +361,15 @@ extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
361extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, 361extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
362 __u32 *); 362 __u32 *);
363extern int cifs_verify_signature(struct smb_hdr *, 363extern int cifs_verify_signature(struct smb_hdr *,
364 const struct mac_key *mac_key, 364 struct TCP_Server_Info *server,
365 __u32 expected_sequence_number); 365 __u32 expected_sequence_number);
366extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn, 366extern int cifs_calculate_session_key(struct session_key *key, const char *rn,
367 const char *pass); 367 const char *pass);
368extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, 368extern int setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
369 const struct nls_table *);
370extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
371extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
372 const struct nls_table *); 369 const struct nls_table *);
370extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
371extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
372extern int calc_seckey(struct TCP_Server_Info *);
373#ifdef CONFIG_CIFS_WEAK_PW_HASH 373#ifdef CONFIG_CIFS_WEAK_PW_HASH
374extern void calc_lanman_hash(const char *password, const char *cryptkey, 374extern void calc_lanman_hash(const char *password, const char *cryptkey,
375 bool encrypt, char *lnm_session_key); 375 bool encrypt, char *lnm_session_key);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index c65c3419dd37..4bda920d1f75 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -604,11 +604,14 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
604 else 604 else
605 rc = -EINVAL; 605 rc = -EINVAL;
606 606
607 if (server->sec_kerberos || server->sec_mskerberos) 607 if (server->secType == Kerberos) {
608 server->secType = Kerberos; 608 if (!server->sec_kerberos &&
609 else if (server->sec_ntlmssp) 609 !server->sec_mskerberos)
610 server->secType = RawNTLMSSP; 610 rc = -EOPNOTSUPP;
611 else 611 } else if (server->secType == RawNTLMSSP) {
612 if (!server->sec_ntlmssp)
613 rc = -EOPNOTSUPP;
614 } else
612 rc = -EOPNOTSUPP; 615 rc = -EOPNOTSUPP;
613 } 616 }
614 } else 617 } else
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 95c2ea67edfb..ec0ea4a43bdb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1673,7 +1673,9 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
1673 MAX_USERNAME_SIZE)) 1673 MAX_USERNAME_SIZE))
1674 continue; 1674 continue;
1675 if (strlen(vol->username) != 0 && 1675 if (strlen(vol->username) != 0 &&
1676 strncmp(ses->password, vol->password, 1676 ses->password != NULL &&
1677 strncmp(ses->password,
1678 vol->password ? vol->password : "",
1677 MAX_PASSWORD_SIZE)) 1679 MAX_PASSWORD_SIZE))
1678 continue; 1680 continue;
1679 } 1681 }
@@ -1706,6 +1708,7 @@ cifs_put_smb_ses(struct cifsSesInfo *ses)
1706 CIFSSMBLogoff(xid, ses); 1708 CIFSSMBLogoff(xid, ses);
1707 _FreeXid(xid); 1709 _FreeXid(xid);
1708 } 1710 }
1711 cifs_crypto_shash_release(server);
1709 sesInfoFree(ses); 1712 sesInfoFree(ses);
1710 cifs_put_tcp_session(server); 1713 cifs_put_tcp_session(server);
1711} 1714}
@@ -1785,13 +1788,23 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
1785 ses->linux_uid = volume_info->linux_uid; 1788 ses->linux_uid = volume_info->linux_uid;
1786 ses->overrideSecFlg = volume_info->secFlg; 1789 ses->overrideSecFlg = volume_info->secFlg;
1787 1790
1791 rc = cifs_crypto_shash_allocate(server);
1792 if (rc) {
1793 cERROR(1, "could not setup hash structures rc %d", rc);
1794 goto get_ses_fail;
1795 }
1796 server->tilen = 0;
1797 server->tiblob = NULL;
1798
1788 mutex_lock(&ses->session_mutex); 1799 mutex_lock(&ses->session_mutex);
1789 rc = cifs_negotiate_protocol(xid, ses); 1800 rc = cifs_negotiate_protocol(xid, ses);
1790 if (!rc) 1801 if (!rc)
1791 rc = cifs_setup_session(xid, ses, volume_info->local_nls); 1802 rc = cifs_setup_session(xid, ses, volume_info->local_nls);
1792 mutex_unlock(&ses->session_mutex); 1803 mutex_unlock(&ses->session_mutex);
1793 if (rc) 1804 if (rc) {
1805 cifs_crypto_shash_release(ses->server);
1794 goto get_ses_fail; 1806 goto get_ses_fail;
1807 }
1795 1808
1796 /* success, put it on the list */ 1809 /* success, put it on the list */
1797 write_lock(&cifs_tcp_ses_lock); 1810 write_lock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 578d88c5b46e..f9ed0751cc12 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -305,8 +305,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
305 full_path = build_path_from_dentry(direntry); 305 full_path = build_path_from_dentry(direntry);
306 if (full_path == NULL) { 306 if (full_path == NULL) {
307 rc = -ENOMEM; 307 rc = -ENOMEM;
308 FreeXid(xid); 308 goto cifs_create_out;
309 return rc;
310 } 309 }
311 310
312 if (oplockEnabled) 311 if (oplockEnabled)
@@ -365,9 +364,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
365 364
366 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); 365 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
367 if (buf == NULL) { 366 if (buf == NULL) {
368 kfree(full_path); 367 rc = -ENOMEM;
369 FreeXid(xid); 368 goto cifs_create_out;
370 return -ENOMEM;
371 } 369 }
372 370
373 /* 371 /*
@@ -496,6 +494,11 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
496 struct cifsTconInfo *pTcon; 494 struct cifsTconInfo *pTcon;
497 char *full_path = NULL; 495 char *full_path = NULL;
498 struct inode *newinode = NULL; 496 struct inode *newinode = NULL;
497 int oplock = 0;
498 u16 fileHandle;
499 FILE_ALL_INFO *buf = NULL;
500 unsigned int bytes_written;
501 struct win_dev *pdev;
499 502
500 if (!old_valid_dev(device_number)) 503 if (!old_valid_dev(device_number))
501 return -EINVAL; 504 return -EINVAL;
@@ -506,9 +509,12 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
506 pTcon = cifs_sb->tcon; 509 pTcon = cifs_sb->tcon;
507 510
508 full_path = build_path_from_dentry(direntry); 511 full_path = build_path_from_dentry(direntry);
509 if (full_path == NULL) 512 if (full_path == NULL) {
510 rc = -ENOMEM; 513 rc = -ENOMEM;
511 else if (pTcon->unix_ext) { 514 goto mknod_out;
515 }
516
517 if (pTcon->unix_ext) {
512 struct cifs_unix_set_info_args args = { 518 struct cifs_unix_set_info_args args = {
513 .mode = mode & ~current_umask(), 519 .mode = mode & ~current_umask(),
514 .ctime = NO_CHANGE_64, 520 .ctime = NO_CHANGE_64,
@@ -527,87 +533,78 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
527 cifs_sb->local_nls, 533 cifs_sb->local_nls,
528 cifs_sb->mnt_cifs_flags & 534 cifs_sb->mnt_cifs_flags &
529 CIFS_MOUNT_MAP_SPECIAL_CHR); 535 CIFS_MOUNT_MAP_SPECIAL_CHR);
536 if (rc)
537 goto mknod_out;
530 538
531 if (!rc) { 539 rc = cifs_get_inode_info_unix(&newinode, full_path,
532 rc = cifs_get_inode_info_unix(&newinode, full_path,
533 inode->i_sb, xid); 540 inode->i_sb, xid);
534 if (pTcon->nocase) 541 if (pTcon->nocase)
535 direntry->d_op = &cifs_ci_dentry_ops; 542 direntry->d_op = &cifs_ci_dentry_ops;
536 else 543 else
537 direntry->d_op = &cifs_dentry_ops; 544 direntry->d_op = &cifs_dentry_ops;
538 if (rc == 0)
539 d_instantiate(direntry, newinode);
540 }
541 } else {
542 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
543 int oplock = 0;
544 u16 fileHandle;
545 FILE_ALL_INFO *buf;
546 545
547 cFYI(1, "sfu compat create special file"); 546 if (rc == 0)
547 d_instantiate(direntry, newinode);
548 goto mknod_out;
549 }
548 550
549 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); 551 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
550 if (buf == NULL) { 552 goto mknod_out;
551 kfree(full_path);
552 rc = -ENOMEM;
553 FreeXid(xid);
554 return rc;
555 }
556 553
557 rc = CIFSSMBOpen(xid, pTcon, full_path, 554
558 FILE_CREATE, /* fail if exists */ 555 cFYI(1, "sfu compat create special file");
559 GENERIC_WRITE /* BB would 556
560 WRITE_OWNER | WRITE_DAC be better? */, 557 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
561 /* Create a file and set the 558 if (buf == NULL) {
562 file attribute to SYSTEM */ 559 kfree(full_path);
563 CREATE_NOT_DIR | CREATE_OPTION_SPECIAL, 560 rc = -ENOMEM;
564 &fileHandle, &oplock, buf, 561 FreeXid(xid);
565 cifs_sb->local_nls, 562 return rc;
566 cifs_sb->mnt_cifs_flags &
567 CIFS_MOUNT_MAP_SPECIAL_CHR);
568
569 /* BB FIXME - add handling for backlevel servers
570 which need legacy open and check for all
571 calls to SMBOpen for fallback to SMBLeagcyOpen */
572 if (!rc) {
573 /* BB Do not bother to decode buf since no
574 local inode yet to put timestamps in,
575 but we can reuse it safely */
576 unsigned int bytes_written;
577 struct win_dev *pdev;
578 pdev = (struct win_dev *)buf;
579 if (S_ISCHR(mode)) {
580 memcpy(pdev->type, "IntxCHR", 8);
581 pdev->major =
582 cpu_to_le64(MAJOR(device_number));
583 pdev->minor =
584 cpu_to_le64(MINOR(device_number));
585 rc = CIFSSMBWrite(xid, pTcon,
586 fileHandle,
587 sizeof(struct win_dev),
588 0, &bytes_written, (char *)pdev,
589 NULL, 0);
590 } else if (S_ISBLK(mode)) {
591 memcpy(pdev->type, "IntxBLK", 8);
592 pdev->major =
593 cpu_to_le64(MAJOR(device_number));
594 pdev->minor =
595 cpu_to_le64(MINOR(device_number));
596 rc = CIFSSMBWrite(xid, pTcon,
597 fileHandle,
598 sizeof(struct win_dev),
599 0, &bytes_written, (char *)pdev,
600 NULL, 0);
601 } /* else if(S_ISFIFO */
602 CIFSSMBClose(xid, pTcon, fileHandle);
603 d_drop(direntry);
604 }
605 kfree(buf);
606 /* add code here to set EAs */
607 }
608 } 563 }
609 564
565 /* FIXME: would WRITE_OWNER | WRITE_DAC be better? */
566 rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_CREATE,
567 GENERIC_WRITE, CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
568 &fileHandle, &oplock, buf, cifs_sb->local_nls,
569 cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
570 if (rc)
571 goto mknod_out;
572
573 /* BB Do not bother to decode buf since no local inode yet to put
574 * timestamps in, but we can reuse it safely */
575
576 pdev = (struct win_dev *)buf;
577 if (S_ISCHR(mode)) {
578 memcpy(pdev->type, "IntxCHR", 8);
579 pdev->major =
580 cpu_to_le64(MAJOR(device_number));
581 pdev->minor =
582 cpu_to_le64(MINOR(device_number));
583 rc = CIFSSMBWrite(xid, pTcon,
584 fileHandle,
585 sizeof(struct win_dev),
586 0, &bytes_written, (char *)pdev,
587 NULL, 0);
588 } else if (S_ISBLK(mode)) {
589 memcpy(pdev->type, "IntxBLK", 8);
590 pdev->major =
591 cpu_to_le64(MAJOR(device_number));
592 pdev->minor =
593 cpu_to_le64(MINOR(device_number));
594 rc = CIFSSMBWrite(xid, pTcon,
595 fileHandle,
596 sizeof(struct win_dev),
597 0, &bytes_written, (char *)pdev,
598 NULL, 0);
599 } /* else if (S_ISFIFO) */
600 CIFSSMBClose(xid, pTcon, fileHandle);
601 d_drop(direntry);
602
603 /* FIXME: add code here to set EAs */
604
605mknod_out:
610 kfree(full_path); 606 kfree(full_path);
607 kfree(buf);
611 FreeXid(xid); 608 FreeXid(xid);
612 return rc; 609 return rc;
613} 610}
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index db11fdef0e92..de748c652d11 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -242,8 +242,7 @@ int cifs_open(struct inode *inode, struct file *file)
242 full_path = build_path_from_dentry(file->f_path.dentry); 242 full_path = build_path_from_dentry(file->f_path.dentry);
243 if (full_path == NULL) { 243 if (full_path == NULL) {
244 rc = -ENOMEM; 244 rc = -ENOMEM;
245 FreeXid(xid); 245 goto out;
246 return rc;
247 } 246 }
248 247
249 cFYI(1, "inode = 0x%p file flags are 0x%x for %s", 248 cFYI(1, "inode = 0x%p file flags are 0x%x for %s",
diff --git a/fs/cifs/ntlmssp.h b/fs/cifs/ntlmssp.h
index 49c9a4e75319..1db0f0746a5b 100644
--- a/fs/cifs/ntlmssp.h
+++ b/fs/cifs/ntlmssp.h
@@ -61,6 +61,19 @@
61#define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000 61#define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000
62#define NTLMSSP_NEGOTIATE_56 0x80000000 62#define NTLMSSP_NEGOTIATE_56 0x80000000
63 63
64/* Define AV Pair Field IDs */
65#define NTLMSSP_AV_EOL 0
66#define NTLMSSP_AV_NB_COMPUTER_NAME 1
67#define NTLMSSP_AV_NB_DOMAIN_NAME 2
68#define NTLMSSP_AV_DNS_COMPUTER_NAME 3
69#define NTLMSSP_AV_DNS_DOMAIN_NAME 4
70#define NTLMSSP_AV_DNS_TREE_NAME 5
71#define NTLMSSP_AV_FLAGS 6
72#define NTLMSSP_AV_TIMESTAMP 7
73#define NTLMSSP_AV_RESTRICTION 8
74#define NTLMSSP_AV_TARGET_NAME 9
75#define NTLMSSP_AV_CHANNEL_BINDINGS 10
76
64/* Although typedefs are not commonly used for structure definitions */ 77/* Although typedefs are not commonly used for structure definitions */
65/* in the Linux kernel, in this particular case they are useful */ 78/* in the Linux kernel, in this particular case they are useful */
66/* to more closely match the standards document for NTLMSSP from */ 79/* to more closely match the standards document for NTLMSSP from */
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 0a57cb7db5dd..4788e16a02cc 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -383,6 +383,9 @@ static int decode_ascii_ssetup(char **pbcc_area, int bleft,
383static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len, 383static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
384 struct cifsSesInfo *ses) 384 struct cifsSesInfo *ses)
385{ 385{
386 unsigned int tioffset; /* challeng message target info area */
387 unsigned int tilen; /* challeng message target info area length */
388
386 CHALLENGE_MESSAGE *pblob = (CHALLENGE_MESSAGE *)bcc_ptr; 389 CHALLENGE_MESSAGE *pblob = (CHALLENGE_MESSAGE *)bcc_ptr;
387 390
388 if (blob_len < sizeof(CHALLENGE_MESSAGE)) { 391 if (blob_len < sizeof(CHALLENGE_MESSAGE)) {
@@ -405,6 +408,20 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
405 /* BB spec says that if AvId field of MsvAvTimestamp is populated then 408 /* BB spec says that if AvId field of MsvAvTimestamp is populated then
406 we must set the MIC field of the AUTHENTICATE_MESSAGE */ 409 we must set the MIC field of the AUTHENTICATE_MESSAGE */
407 410
411 ses->server->ntlmssp.server_flags = le32_to_cpu(pblob->NegotiateFlags);
412
413 tioffset = cpu_to_le16(pblob->TargetInfoArray.BufferOffset);
414 tilen = cpu_to_le16(pblob->TargetInfoArray.Length);
415 ses->server->tilen = tilen;
416 if (tilen) {
417 ses->server->tiblob = kmalloc(tilen, GFP_KERNEL);
418 if (!ses->server->tiblob) {
419 cERROR(1, "Challenge target info allocation failure");
420 return -ENOMEM;
421 }
422 memcpy(ses->server->tiblob, bcc_ptr + tioffset, tilen);
423 }
424
408 return 0; 425 return 0;
409} 426}
410 427
@@ -425,12 +442,13 @@ static void build_ntlmssp_negotiate_blob(unsigned char *pbuffer,
425 /* BB is NTLMV2 session security format easier to use here? */ 442 /* BB is NTLMV2 session security format easier to use here? */
426 flags = NTLMSSP_NEGOTIATE_56 | NTLMSSP_REQUEST_TARGET | 443 flags = NTLMSSP_NEGOTIATE_56 | NTLMSSP_REQUEST_TARGET |
427 NTLMSSP_NEGOTIATE_128 | NTLMSSP_NEGOTIATE_UNICODE | 444 NTLMSSP_NEGOTIATE_128 | NTLMSSP_NEGOTIATE_UNICODE |
428 NTLMSSP_NEGOTIATE_NT_ONLY | NTLMSSP_NEGOTIATE_NTLM; 445 NTLMSSP_NEGOTIATE_NTLM;
429 if (ses->server->secMode & 446 if (ses->server->secMode &
430 (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) 447 (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
431 flags |= NTLMSSP_NEGOTIATE_SIGN; 448 flags |= NTLMSSP_NEGOTIATE_SIGN |
432 if (ses->server->secMode & SECMODE_SIGN_REQUIRED) 449 NTLMSSP_NEGOTIATE_KEY_XCH |
433 flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN; 450 NTLMSSP_NEGOTIATE_EXTENDED_SEC;
451 }
434 452
435 sec_blob->NegotiateFlags |= cpu_to_le32(flags); 453 sec_blob->NegotiateFlags |= cpu_to_le32(flags);
436 454
@@ -451,10 +469,12 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
451 struct cifsSesInfo *ses, 469 struct cifsSesInfo *ses,
452 const struct nls_table *nls_cp, bool first) 470 const struct nls_table *nls_cp, bool first)
453{ 471{
472 int rc;
473 unsigned int size;
454 AUTHENTICATE_MESSAGE *sec_blob = (AUTHENTICATE_MESSAGE *)pbuffer; 474 AUTHENTICATE_MESSAGE *sec_blob = (AUTHENTICATE_MESSAGE *)pbuffer;
455 __u32 flags; 475 __u32 flags;
456 unsigned char *tmp; 476 unsigned char *tmp;
457 char ntlm_session_key[CIFS_SESS_KEY_SIZE]; 477 struct ntlmv2_resp ntlmv2_response = {};
458 478
459 memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8); 479 memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8);
460 sec_blob->MessageType = NtLmAuthenticate; 480 sec_blob->MessageType = NtLmAuthenticate;
@@ -477,19 +497,25 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
477 sec_blob->LmChallengeResponse.Length = 0; 497 sec_blob->LmChallengeResponse.Length = 0;
478 sec_blob->LmChallengeResponse.MaximumLength = 0; 498 sec_blob->LmChallengeResponse.MaximumLength = 0;
479 499
480 /* calculate session key, BB what about adding similar ntlmv2 path? */
481 SMBNTencrypt(ses->password, ses->server->cryptKey, ntlm_session_key);
482 if (first)
483 cifs_calculate_mac_key(&ses->server->mac_signing_key,
484 ntlm_session_key, ses->password);
485
486 memcpy(tmp, ntlm_session_key, CIFS_SESS_KEY_SIZE);
487 sec_blob->NtChallengeResponse.BufferOffset = cpu_to_le32(tmp - pbuffer); 500 sec_blob->NtChallengeResponse.BufferOffset = cpu_to_le32(tmp - pbuffer);
488 sec_blob->NtChallengeResponse.Length = cpu_to_le16(CIFS_SESS_KEY_SIZE); 501 rc = setup_ntlmv2_rsp(ses, (char *)&ntlmv2_response, nls_cp);
489 sec_blob->NtChallengeResponse.MaximumLength = 502 if (rc) {
490 cpu_to_le16(CIFS_SESS_KEY_SIZE); 503 cERROR(1, "error rc: %d during ntlmssp ntlmv2 setup", rc);
504 goto setup_ntlmv2_ret;
505 }
506 size = sizeof(struct ntlmv2_resp);
507 memcpy(tmp, (char *)&ntlmv2_response, size);
508 tmp += size;
509 if (ses->server->tilen > 0) {
510 memcpy(tmp, ses->server->tiblob, ses->server->tilen);
511 tmp += ses->server->tilen;
512 } else
513 ses->server->tilen = 0;
491 514
492 tmp += CIFS_SESS_KEY_SIZE; 515 sec_blob->NtChallengeResponse.Length = cpu_to_le16(size +
516 ses->server->tilen);
517 sec_blob->NtChallengeResponse.MaximumLength =
518 cpu_to_le16(size + ses->server->tilen);
493 519
494 if (ses->domainName == NULL) { 520 if (ses->domainName == NULL) {
495 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer); 521 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
@@ -501,7 +527,6 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
501 len = cifs_strtoUCS((__le16 *)tmp, ses->domainName, 527 len = cifs_strtoUCS((__le16 *)tmp, ses->domainName,
502 MAX_USERNAME_SIZE, nls_cp); 528 MAX_USERNAME_SIZE, nls_cp);
503 len *= 2; /* unicode is 2 bytes each */ 529 len *= 2; /* unicode is 2 bytes each */
504 len += 2; /* trailing null */
505 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer); 530 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
506 sec_blob->DomainName.Length = cpu_to_le16(len); 531 sec_blob->DomainName.Length = cpu_to_le16(len);
507 sec_blob->DomainName.MaximumLength = cpu_to_le16(len); 532 sec_blob->DomainName.MaximumLength = cpu_to_le16(len);
@@ -518,7 +543,6 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
518 len = cifs_strtoUCS((__le16 *)tmp, ses->userName, 543 len = cifs_strtoUCS((__le16 *)tmp, ses->userName,
519 MAX_USERNAME_SIZE, nls_cp); 544 MAX_USERNAME_SIZE, nls_cp);
520 len *= 2; /* unicode is 2 bytes each */ 545 len *= 2; /* unicode is 2 bytes each */
521 len += 2; /* trailing null */
522 sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer); 546 sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
523 sec_blob->UserName.Length = cpu_to_le16(len); 547 sec_blob->UserName.Length = cpu_to_le16(len);
524 sec_blob->UserName.MaximumLength = cpu_to_le16(len); 548 sec_blob->UserName.MaximumLength = cpu_to_le16(len);
@@ -530,9 +554,26 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
530 sec_blob->WorkstationName.MaximumLength = 0; 554 sec_blob->WorkstationName.MaximumLength = 0;
531 tmp += 2; 555 tmp += 2;
532 556
533 sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer); 557 if ((ses->server->ntlmssp.server_flags & NTLMSSP_NEGOTIATE_KEY_XCH) &&
534 sec_blob->SessionKey.Length = 0; 558 !calc_seckey(ses->server)) {
535 sec_blob->SessionKey.MaximumLength = 0; 559 memcpy(tmp, ses->server->ntlmssp.ciphertext, CIFS_CPHTXT_SIZE);
560 sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
561 sec_blob->SessionKey.Length = cpu_to_le16(CIFS_CPHTXT_SIZE);
562 sec_blob->SessionKey.MaximumLength =
563 cpu_to_le16(CIFS_CPHTXT_SIZE);
564 tmp += CIFS_CPHTXT_SIZE;
565 } else {
566 sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
567 sec_blob->SessionKey.Length = 0;
568 sec_blob->SessionKey.MaximumLength = 0;
569 }
570
571 ses->server->sequence_number = 0;
572
573setup_ntlmv2_ret:
574 if (ses->server->tilen > 0)
575 kfree(ses->server->tiblob);
576
536 return tmp - pbuffer; 577 return tmp - pbuffer;
537} 578}
538 579
@@ -546,15 +587,14 @@ static void setup_ntlmssp_neg_req(SESSION_SETUP_ANDX *pSMB,
546 return; 587 return;
547} 588}
548 589
549static int setup_ntlmssp_auth_req(SESSION_SETUP_ANDX *pSMB, 590static int setup_ntlmssp_auth_req(char *ntlmsspblob,
550 struct cifsSesInfo *ses, 591 struct cifsSesInfo *ses,
551 const struct nls_table *nls, bool first_time) 592 const struct nls_table *nls, bool first_time)
552{ 593{
553 int bloblen; 594 int bloblen;
554 595
555 bloblen = build_ntlmssp_auth_blob(&pSMB->req.SecurityBlob[0], ses, nls, 596 bloblen = build_ntlmssp_auth_blob(ntlmsspblob, ses, nls,
556 first_time); 597 first_time);
557 pSMB->req.SecurityBlobLength = cpu_to_le16(bloblen);
558 598
559 return bloblen; 599 return bloblen;
560} 600}
@@ -580,6 +620,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
580 struct key *spnego_key = NULL; 620 struct key *spnego_key = NULL;
581 __le32 phase = NtLmNegotiate; /* NTLMSSP, if needed, is multistage */ 621 __le32 phase = NtLmNegotiate; /* NTLMSSP, if needed, is multistage */
582 bool first_time; 622 bool first_time;
623 char *ntlmsspblob;
583 624
584 if (ses == NULL) 625 if (ses == NULL)
585 return -EINVAL; 626 return -EINVAL;
@@ -690,7 +731,7 @@ ssetup_ntlmssp_authenticate:
690 731
691 if (first_time) /* should this be moved into common code 732 if (first_time) /* should this be moved into common code
692 with similar ntlmv2 path? */ 733 with similar ntlmv2 path? */
693 cifs_calculate_mac_key(&ses->server->mac_signing_key, 734 cifs_calculate_session_key(&ses->server->session_key,
694 ntlm_session_key, ses->password); 735 ntlm_session_key, ses->password);
695 /* copy session key */ 736 /* copy session key */
696 737
@@ -729,12 +770,21 @@ ssetup_ntlmssp_authenticate:
729 cpu_to_le16(sizeof(struct ntlmv2_resp)); 770 cpu_to_le16(sizeof(struct ntlmv2_resp));
730 771
731 /* calculate session key */ 772 /* calculate session key */
732 setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp); 773 rc = setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp);
774 if (rc) {
775 kfree(v2_sess_key);
776 goto ssetup_exit;
777 }
733 /* FIXME: calculate MAC key */ 778 /* FIXME: calculate MAC key */
734 memcpy(bcc_ptr, (char *)v2_sess_key, 779 memcpy(bcc_ptr, (char *)v2_sess_key,
735 sizeof(struct ntlmv2_resp)); 780 sizeof(struct ntlmv2_resp));
736 bcc_ptr += sizeof(struct ntlmv2_resp); 781 bcc_ptr += sizeof(struct ntlmv2_resp);
737 kfree(v2_sess_key); 782 kfree(v2_sess_key);
783 if (ses->server->tilen > 0) {
784 memcpy(bcc_ptr, ses->server->tiblob,
785 ses->server->tilen);
786 bcc_ptr += ses->server->tilen;
787 }
738 if (ses->capabilities & CAP_UNICODE) { 788 if (ses->capabilities & CAP_UNICODE) {
739 if (iov[0].iov_len % 2) { 789 if (iov[0].iov_len % 2) {
740 *bcc_ptr = 0; 790 *bcc_ptr = 0;
@@ -765,15 +815,15 @@ ssetup_ntlmssp_authenticate:
765 } 815 }
766 /* bail out if key is too long */ 816 /* bail out if key is too long */
767 if (msg->sesskey_len > 817 if (msg->sesskey_len >
768 sizeof(ses->server->mac_signing_key.data.krb5)) { 818 sizeof(ses->server->session_key.data.krb5)) {
769 cERROR(1, "Kerberos signing key too long (%u bytes)", 819 cERROR(1, "Kerberos signing key too long (%u bytes)",
770 msg->sesskey_len); 820 msg->sesskey_len);
771 rc = -EOVERFLOW; 821 rc = -EOVERFLOW;
772 goto ssetup_exit; 822 goto ssetup_exit;
773 } 823 }
774 if (first_time) { 824 if (first_time) {
775 ses->server->mac_signing_key.len = msg->sesskey_len; 825 ses->server->session_key.len = msg->sesskey_len;
776 memcpy(ses->server->mac_signing_key.data.krb5, 826 memcpy(ses->server->session_key.data.krb5,
777 msg->data, msg->sesskey_len); 827 msg->data, msg->sesskey_len);
778 } 828 }
779 pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; 829 pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
@@ -815,12 +865,26 @@ ssetup_ntlmssp_authenticate:
815 if (phase == NtLmNegotiate) { 865 if (phase == NtLmNegotiate) {
816 setup_ntlmssp_neg_req(pSMB, ses); 866 setup_ntlmssp_neg_req(pSMB, ses);
817 iov[1].iov_len = sizeof(NEGOTIATE_MESSAGE); 867 iov[1].iov_len = sizeof(NEGOTIATE_MESSAGE);
868 iov[1].iov_base = &pSMB->req.SecurityBlob[0];
818 } else if (phase == NtLmAuthenticate) { 869 } else if (phase == NtLmAuthenticate) {
819 int blob_len; 870 int blob_len;
820 blob_len = setup_ntlmssp_auth_req(pSMB, ses, 871 ntlmsspblob = kmalloc(5 *
821 nls_cp, 872 sizeof(struct _AUTHENTICATE_MESSAGE),
822 first_time); 873 GFP_KERNEL);
874 if (!ntlmsspblob) {
875 cERROR(1, "Can't allocate NTLMSSP");
876 rc = -ENOMEM;
877 goto ssetup_exit;
878 }
879
880 blob_len = setup_ntlmssp_auth_req(ntlmsspblob,
881 ses,
882 nls_cp,
883 first_time);
823 iov[1].iov_len = blob_len; 884 iov[1].iov_len = blob_len;
885 iov[1].iov_base = ntlmsspblob;
886 pSMB->req.SecurityBlobLength =
887 cpu_to_le16(blob_len);
824 /* Make sure that we tell the server that we 888 /* Make sure that we tell the server that we
825 are using the uid that it just gave us back 889 are using the uid that it just gave us back
826 on the response (challenge) */ 890 on the response (challenge) */
@@ -830,7 +894,6 @@ ssetup_ntlmssp_authenticate:
830 rc = -ENOSYS; 894 rc = -ENOSYS;
831 goto ssetup_exit; 895 goto ssetup_exit;
832 } 896 }
833 iov[1].iov_base = &pSMB->req.SecurityBlob[0];
834 /* unicode strings must be word aligned */ 897 /* unicode strings must be word aligned */
835 if ((iov[0].iov_len + iov[1].iov_len) % 2) { 898 if ((iov[0].iov_len + iov[1].iov_len) % 2) {
836 *bcc_ptr = 0; 899 *bcc_ptr = 0;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 82f78c4d6978..e0588cdf4cc5 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -543,7 +543,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
543 (ses->server->secMode & (SECMODE_SIGN_REQUIRED | 543 (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
544 SECMODE_SIGN_ENABLED))) { 544 SECMODE_SIGN_ENABLED))) {
545 rc = cifs_verify_signature(midQ->resp_buf, 545 rc = cifs_verify_signature(midQ->resp_buf,
546 &ses->server->mac_signing_key, 546 ses->server,
547 midQ->sequence_number+1); 547 midQ->sequence_number+1);
548 if (rc) { 548 if (rc) {
549 cERROR(1, "Unexpected SMB signature"); 549 cERROR(1, "Unexpected SMB signature");
@@ -731,7 +731,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
731 (ses->server->secMode & (SECMODE_SIGN_REQUIRED | 731 (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
732 SECMODE_SIGN_ENABLED))) { 732 SECMODE_SIGN_ENABLED))) {
733 rc = cifs_verify_signature(out_buf, 733 rc = cifs_verify_signature(out_buf,
734 &ses->server->mac_signing_key, 734 ses->server,
735 midQ->sequence_number+1); 735 midQ->sequence_number+1);
736 if (rc) { 736 if (rc) {
737 cERROR(1, "Unexpected SMB signature"); 737 cERROR(1, "Unexpected SMB signature");
@@ -981,7 +981,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
981 (ses->server->secMode & (SECMODE_SIGN_REQUIRED | 981 (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
982 SECMODE_SIGN_ENABLED))) { 982 SECMODE_SIGN_ENABLED))) {
983 rc = cifs_verify_signature(out_buf, 983 rc = cifs_verify_signature(out_buf,
984 &ses->server->mac_signing_key, 984 ses->server,
985 midQ->sequence_number+1); 985 midQ->sequence_number+1);
986 if (rc) { 986 if (rc) {
987 cERROR(1, "Unexpected SMB signature"); 987 cERROR(1, "Unexpected SMB signature");
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-26 07:59:58 -0400