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-rw-r--r--fs/cifs/connect.c89
1 files changed, 76 insertions, 13 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index c467de85761..88f60aa5205 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -76,12 +76,19 @@ struct smb_vol {
unsigned setuids:1;
unsigned noperm:1;
unsigned no_psx_acl:1; /* set if posix acl support should be disabled */
+ unsigned cifs_acl:1;
unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/
unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
unsigned direct_io:1;
unsigned remap:1; /* set to remap seven reserved chars in filenames */
unsigned posix_paths:1; /* unset to not ask for posix pathnames. */
unsigned sfu_emul:1;
+ unsigned krb5:1;
+ unsigned ntlm:1;
+ unsigned ntlmv2:1;
+ unsigned nullauth:1; /* attempt to authenticate with null user */
+ unsigned sign:1;
+ unsigned seal:1; /* encrypt */
unsigned nocase; /* request case insensitive filenames */
unsigned nobrl; /* disable sending byte range locks to srv */
unsigned int rsize;
@@ -508,7 +515,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
/* else length ok */
reconnect = 0;
- if(pdu_length > MAX_CIFS_HDR_SIZE - 4) {
+ if(pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) {
isLargeBuf = TRUE;
memcpy(bigbuf, smallbuf, 4);
smb_buffer = bigbuf;
@@ -777,7 +784,7 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
vol->rw = TRUE;
-
+ vol->ntlm = TRUE;
/* default is always to request posix paths. */
vol->posix_paths = 1;
@@ -903,6 +910,39 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
printk(KERN_WARNING "CIFS: ip address too long\n");
return 1;
}
+ } else if (strnicmp(data, "sec", 3) == 0) {
+ if (!value || !*value) {
+ cERROR(1,("no security value specified"));
+ continue;
+ } else if (strnicmp(value, "krb5i", 5) == 0) {
+ vol->sign = 1;
+ vol->krb5 = 1;
+ } else if (strnicmp(value, "krb5p", 5) == 0) {
+ /* vol->seal = 1;
+ vol->krb5 = 1; */
+ cERROR(1,("Krb5 cifs privacy not supported"));
+ return 1;
+ } else if (strnicmp(value, "krb5", 4) == 0) {
+ vol->krb5 = 1;
+ } else if (strnicmp(value, "ntlmv2i", 7) == 0) {
+ vol->ntlmv2 = 1;
+ vol->sign = 1;
+ } else if (strnicmp(value, "ntlmv2", 6) == 0) {
+ vol->ntlmv2 = 1;
+ } else if (strnicmp(value, "ntlmi", 5) == 0) {
+ vol->ntlm = 1;
+ vol->sign = 1;
+ } else if (strnicmp(value, "ntlm", 4) == 0) {
+ /* ntlm is default so can be turned off too */
+ vol->ntlm = 1;
+ } else if (strnicmp(value, "nontlm", 6) == 0) {
+ vol->ntlm = 0;
+ } else if (strnicmp(value, "none", 4) == 0) {
+ vol->nullauth = 1;
+ } else {
+ cERROR(1,("bad security option: %s", value));
+ return 1;
+ }
} else if ((strnicmp(data, "unc", 3) == 0)
|| (strnicmp(data, "target", 6) == 0)
|| (strnicmp(data, "path", 4) == 0)) {
@@ -1120,6 +1160,10 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
vol->server_ino = 1;
} else if (strnicmp(data, "noserverino",9) == 0) {
vol->server_ino = 0;
+ } else if (strnicmp(data, "cifsacl",7) == 0) {
+ vol->cifs_acl = 1;
+ } else if (strnicmp(data, "nocifsacl", 9) == 0) {
+ vol->cifs_acl = 0;
} else if (strnicmp(data, "acl",3) == 0) {
vol->no_psx_acl = 0;
} else if (strnicmp(data, "noacl",5) == 0) {
@@ -1546,7 +1590,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cFYI(1, ("Username: %s ", volume_info.username));
} else {
- cifserror("No username specified ");
+ cifserror("No username specified");
/* In userspace mount helper we can get user name from alternate
locations such as env variables and files on disk */
kfree(volume_info.UNC);
@@ -1587,7 +1631,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
return -EINVAL;
} else /* which servers DFS root would we conect to */ {
cERROR(1,
- ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified "));
+ ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified"));
kfree(volume_info.UNC);
kfree(volume_info.password);
FreeXid(xid);
@@ -1626,7 +1670,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (srvTcp) {
- cFYI(1, ("Existing tcp session with server found "));
+ cFYI(1, ("Existing tcp session with server found"));
} else { /* create socket */
if(volume_info.port)
sin_server.sin_port = htons(volume_info.port);
@@ -1689,11 +1733,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (existingCifsSes) {
pSesInfo = existingCifsSes;
- cFYI(1, ("Existing smb sess found "));
+ cFYI(1, ("Existing smb sess found"));
kfree(volume_info.password);
/* volume_info.UNC freed at end of function */
} else if (!rc) {
- cFYI(1, ("Existing smb sess not found "));
+ cFYI(1, ("Existing smb sess not found"));
pSesInfo = sesInfoAlloc();
if (pSesInfo == NULL)
rc = -ENOMEM;
@@ -1751,7 +1795,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_gid = volume_info.linux_gid;
cifs_sb->mnt_file_mode = volume_info.file_mode;
cifs_sb->mnt_dir_mode = volume_info.dir_mode;
- cFYI(1,("file mode: 0x%x dir mode: 0x%x",cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
+ cFYI(1,("file mode: 0x%x dir mode: 0x%x",
+ cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
if(volume_info.noperm)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
@@ -1767,6 +1812,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
if(volume_info.nobrl)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL;
+ if(volume_info.cifs_acl)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL;
if(volume_info.direct_io) {
cFYI(1,("mounting share using direct i/o"));
@@ -1777,7 +1824,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
volume_info.username);
if (tcon) {
- cFYI(1, ("Found match on UNC path "));
+ cFYI(1, ("Found match on UNC path"));
/* we can have only one retry value for a connection
to a share so for resources mounted more than once
to the same server share the last value passed in
@@ -1926,7 +1973,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
__u32 capabilities;
__u16 count;
- cFYI(1, ("In sesssetup "));
+ cFYI(1, ("In sesssetup"));
if(ses == NULL)
return -EINVAL;
user = ses->userName;
@@ -3202,9 +3249,26 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
pSMB->AndXCommand = 0xFF;
pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
- pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
bcc_ptr = &pSMB->Password[0];
- bcc_ptr++; /* skip password */
+ if((ses->server->secMode) & SECMODE_USER) {
+ pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
+ bcc_ptr++; /* skip password */
+ } else {
+ pSMB->PasswordLength = cpu_to_le16(CIFS_SESSION_KEY_SIZE);
+ /* BB FIXME add code to fail this if NTLMv2 or Kerberos
+ specified as required (when that support is added to
+ the vfs in the future) as only NTLM or the much
+ weaker LANMAN (which we do not send) is accepted
+ by Samba (not sure whether other servers allow
+ NTLMv2 password here) */
+ SMBNTencrypt(ses->password,
+ ses->server->cryptKey,
+ bcc_ptr);
+
+ bcc_ptr += CIFS_SESSION_KEY_SIZE;
+ *bcc_ptr = 0;
+ bcc_ptr++; /* align */
+ }
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
@@ -3222,7 +3286,6 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr += 2 * length; /* convert num of 16 bit words to bytes */
bcc_ptr += 2; /* skip trailing null */
} else { /* ASCII */
-
strcpy(bcc_ptr, tree);
bcc_ptr += strlen(tree) + 1;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 02:41:26 +0000