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Commit 56831a1a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] list entry can not return null
  turn cifs_setattr into a multiplexor that calls the correct function
  move file time and dos attribute setting logic into new function
  spin off cifs_setattr with unix extensions to its own function
  [CIFS] Code cleanup in old sessionsetup code
  [CIFS] cifs_mkdir and cifs_create should respect the setgid bit on parent dir
  Rename CIFSSMBSetFileTimes to CIFSSMBSetFileInfo and add PID arg
  change CIFSSMBSetTimes to CIFSSMBSetPathInfo
  [CIFS] fix trailing whitespace
  bundle up Unix SET_PATH_INFO args into a struct and change name
  Fix missing braces in cifs_revalidate()
  remove locking around tcpSesAllocCount atomic variable
  [CIFS] properly account for new user= field in SPNEGO upcall string allocation
  [CIFS] remove level of indentation from decode_negTokenInit
  [CIFS] cifs send2 not retrying enough in some cases on full socket
  [CIFS] oid should also be checked against class in cifs asn
parents 6724cce8 ad8b15f0

fs/cifs/CHANGES

+8 −0
Original line number Diff line number Diff line 
Version 1.54

------------

Fix premature write failure on congested networks (we would give up

on EAGAIN from the socket too quickly on large writes).

Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.

Fix endian problems in acl (mode from/to cifs acl) on bigendian

architectures.



Version 1.53

------------

DFS support added (Microsoft Distributed File System client support needed

fs/cifs/asn1.c

+124 −134
Original line number Diff line number Diff line
@@ -483,6 +483,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, 


	asn1_open(&ctx, security_blob, length);



	/* GSSAPI header */

	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {

		cFYI(1, ("Error decoding negTokenInit header"));

		return 0;
@@ -490,15 +491,16 @@ decode_negTokenInit(unsigned char *security_blob, int length, 
		   || (tag != ASN1_EOC)) {

		cFYI(1, ("cls = %d con = %d tag = %d", cls, con, tag));

		return 0;

	} else {

		/*      remember to free obj->oid */

	}



	/* Check for SPNEGO OID -- remember to free obj->oid */

	rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);

	if (rc) {

			if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {

		if ((tag == ASN1_OJI) && (con == ASN1_PRI) &&

		    (cls == ASN1_UNI)) {

			rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);

			if (rc) {

					rc = compare_oid(oid, oidlen,

							 SPNEGO_OID,

				rc = compare_oid(oid, oidlen, SPNEGO_OID,

						 SPNEGO_OID_LEN);

				kfree(oid);

			}
@@ -506,6 +508,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, 
			rc = 0;

	}



	/* SPNEGO OID not present or garbled -- bail out */

	if (!rc) {

		cFYI(1, ("Error decoding negTokenInit header"));

		return 0;
@@ -566,22 +569,17 @@ decode_negTokenInit(unsigned char *security_blob, int length, 
		if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {

			if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {



					cFYI(1,

					  ("OID len = %d oid = 0x%lx 0x%lx "

					   "0x%lx 0x%lx",

					   oidlen, *oid, *(oid + 1),

					   *(oid + 2), *(oid + 3)));

				cFYI(1, ("OID len = %d oid = 0x%lx 0x%lx "

					 "0x%lx 0x%lx", oidlen, *oid,

					 *(oid + 1), *(oid + 2), *(oid + 3)));



					if (compare_oid(oid, oidlen,

							MSKRB5_OID,

				if (compare_oid(oid, oidlen, MSKRB5_OID,

						MSKRB5_OID_LEN))

					use_kerberos = true;

					else if (compare_oid(oid, oidlen,

							     KRB5_OID,

				else if (compare_oid(oid, oidlen, KRB5_OID,

						     KRB5_OID_LEN))

					use_kerberos = true;

					else if (compare_oid(oid, oidlen,

							     NTLMSSP_OID,

				else if (compare_oid(oid, oidlen, NTLMSSP_OID,

						     NTLMSSP_OID_LEN))

					use_ntlmssp = true;
@@ -593,19 +591,16 @@ decode_negTokenInit(unsigned char *security_blob, int length, 
	}



	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {

			cFYI(1,

			     ("Error decoding last part negTokenInit exit3"));

		cFYI(1, ("Error decoding last part negTokenInit exit3"));

		return 0;

	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {

		/* tag = 3 indicating mechListMIC */

			cFYI(1,

			     ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",

		cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",

			 cls, con, tag, end, *end));

		return 0;

	}

	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {

			cFYI(1,

			     ("Error decoding last part negTokenInit exit5"));

		cFYI(1, ("Error decoding last part negTokenInit exit5"));

		return 0;

	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)

		   || (tag != ASN1_SEQ)) {
@@ -614,29 +609,24 @@ decode_negTokenInit(unsigned char *security_blob, int length, 
	}



	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {

			cFYI(1,

			     ("Error decoding last part negTokenInit exit 7"));

		cFYI(1, ("Error decoding last part negTokenInit exit 7"));

		return 0;

	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {

			cFYI(1,

			     ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",

		cFYI(1, ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",

			 cls, con, tag, end, *end));

		return 0;

	}

	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {

			cFYI(1,

			     ("Error decoding last part negTokenInit exit9"));

		cFYI(1, ("Error decoding last part negTokenInit exit9"));

		return 0;

	} else if ((cls != ASN1_UNI) || (con != ASN1_PRI)

		   || (tag != ASN1_GENSTR)) {

			cFYI(1,

			     ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",

		cFYI(1, ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",

			 cls, con, tag, end, *end));

		return 0;

	}

	cFYI(1, ("Need to call asn1_octets_decode() function for %s",

		 ctx.pointer));	/* is this UTF-8 or ASCII? */

	}



	if (use_kerberos)

		*secType = Kerberos;

fs/cifs/cifs_debug.c

+24 −29
Original line number Diff line number Diff line
@@ -79,7 +79,6 @@ void cifs_dump_mids(struct TCP_Server_Info *server) 
	spin_lock(&GlobalMid_Lock);

	list_for_each(tmp, &server->pending_mid_q) {

		mid_entry = list_entry(tmp, struct mid_q_entry, qhead);

		if (mid_entry) {

		cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",

			mid_entry->midState,

			(int)mid_entry->command,
@@ -101,7 +100,6 @@ void cifs_dump_mids(struct TCP_Server_Info *server) 
				mid_entry->resp_buf, 62);

		}

	}

	}

	spin_unlock(&GlobalMid_Lock);

}

#endif /* CONFIG_CIFS_DEBUG2 */
@@ -163,9 +161,7 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) 
				mid_entry = list_entry(tmp1, struct

					mid_q_entry,

					qhead);

				if (mid_entry) {

					seq_printf(m,

							"State: %d com: %d pid:"

				seq_printf(m, "State: %d com: %d pid:"

						" %d tsk: %p mid %d\n",

						mid_entry->midState,

						(int)mid_entry->command,
@@ -173,7 +169,6 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) 
						mid_entry->tsk,

						mid_entry->mid);

			}

			}

			spin_unlock(&GlobalMid_Lock);

		}

fs/cifs/cifs_spnego.c

+11 −7
Original line number Diff line number Diff line
@@ -66,8 +66,8 @@ struct key_type cifs_spnego_key_type = { 
	.describe	= user_describe,

};



#define MAX_VER_STR_LEN   9 /* length of longest version string e.g.

				strlen(";ver=0xFF") */

#define MAX_VER_STR_LEN   8 /* length of longest version string e.g.

				strlen("ver=0xFF") */

#define MAX_MECH_STR_LEN 13 /* length of longest security mechanism name, eg

			       in future could have strlen(";sec=ntlmsspi") */

#define MAX_IPV6_ADDR_LEN 42 /* eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
@@ -81,11 +81,15 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) 
	struct key *spnego_key;

	const char *hostname = server->hostname;



	/* BB: come up with better scheme for determining length */

	/* length of fields (with semicolons): ver=0xyz ipv4= ipaddress host=

	   hostname sec=mechanism uid=0x uid */

	desc_len = MAX_VER_STR_LEN + 5 + MAX_IPV6_ADDR_LEN + 1 + 6 +

		  strlen(hostname) + MAX_MECH_STR_LEN + 8 + (sizeof(uid_t) * 2);

	/* length of fields (with semicolons): ver=0xyz ip4=ipaddress

	   host=hostname sec=mechanism uid=0xFF user=username */

	desc_len = MAX_VER_STR_LEN +

		   6 /* len of "host=" */ + strlen(hostname) +

		   5 /* len of ";ipv4=" */ + MAX_IPV6_ADDR_LEN +

		   MAX_MECH_STR_LEN +

		   7 /* len of ";uid=0x" */ + (sizeof(uid_t) * 2) +

		   6 /* len of ";user=" */ + strlen(sesInfo->userName) + 1;



	spnego_key = ERR_PTR(-ENOMEM);

	description = kzalloc(desc_len, GFP_KERNEL);

	if (description == NULL)

fs/cifs/cifsfs.c

+33 −38
Original line number Diff line number Diff line
@@ -931,7 +931,6 @@ static int cifs_oplock_thread(void *dummyarg) 
		} else {

			oplock_item = list_entry(GlobalOplock_Q.next,

						struct oplock_q_entry, qhead);

			if (oplock_item) {

			cFYI(1, ("found oplock item to write out"));

			pTcon = oplock_item->tcon;

			inode = oplock_item->pinode;
@@ -944,11 +943,10 @@ static int cifs_oplock_thread(void *dummyarg) 
				the call */

			/* mutex_lock(&inode->i_mutex);*/

			if (S_ISREG(inode->i_mode)) {

					rc =

					   filemap_fdatawrite(inode->i_mapping);

					if (CIFS_I(inode)->clientCanCacheRead

									 == 0) {

						waitrc = filemap_fdatawait(inode->i_mapping);

				rc = filemap_fdatawrite(inode->i_mapping);

				if (CIFS_I(inode)->clientCanCacheRead == 0) {

					waitrc = filemap_fdatawait(

							      inode->i_mapping);

					invalidate_remote_inode(inode);

				}

				if (rc == 0)
@@ -974,8 +972,6 @@ static int cifs_oplock_thread(void *dummyarg) 
						false /* wait flag */);

				cFYI(1, ("Oplock release rc = %d", rc));

			}

			} else

				spin_unlock(&GlobalMid_Lock);

			set_current_state(TASK_INTERRUPTIBLE);

			schedule_timeout(1);  /* yield in case q were corrupt */

		}
@@ -1001,8 +997,7 @@ static int cifs_dnotify_thread(void *dummyarg) 
		list_for_each(tmp, &GlobalSMBSessionList) {

			ses = list_entry(tmp, struct cifsSesInfo,

				cifsSessionList);

			if (ses && ses->server &&

			     atomic_read(&ses->server->inFlight))

			if (ses->server && atomic_read(&ses->server->inFlight))

				wake_up_all(&ses->server->response_q);

		}

		read_unlock(&GlobalSMBSeslock);