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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-13 23:00:25 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-13 23:00:25 +0300 |
| commit | d0d0cd38005518533d641e1344537f89cfe95203 (patch) | |
| tree | 72e7bd6cbe89a17e862da9ef17dad9beb0b6893e | |
| parent | 528dd46d0fc35c0176257a13a27d41e44fcc6cb3 (diff) | |
| parent | d2346e2836318a227057ed41061114cbebee5d2a (diff) | |
| download | linux-d0d0cd38005518533d641e1344537f89cfe95203.tar.xz | |
Merge tag '6.10-rc7-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fix from Steve French:
"Small fix, also for stable"
* tag '6.10-rc7-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix setting SecurityFlags to true
| -rw-r--r-- | Documentation/admin-guide/cifs/usage.rst | 36 | ||||
| -rw-r--r-- | fs/smb/client/cifsglob.h | 4 |
2 files changed, 13 insertions, 27 deletions
diff --git a/Documentation/admin-guide/cifs/usage.rst b/Documentation/admin-guide/cifs/usage.rst index aa8290a29dc8..fd4b56c0996f 100644 --- a/Documentation/admin-guide/cifs/usage.rst +++ b/Documentation/admin-guide/cifs/usage.rst @@ -723,40 +723,26 @@ Configuration pseudo-files: ======================= ======================================================= SecurityFlags Flags which control security negotiation and also packet signing. Authentication (may/must) - flags (e.g. for NTLM and/or NTLMv2) may be combined with + flags (e.g. for NTLMv2) may be combined with the signing flags. Specifying two different password hashing mechanisms (as "must use") on the other hand does not make much sense. Default flags are:: - 0x07007 - - (NTLM, NTLMv2 and packet signing allowed). The maximum - allowable flags if you want to allow mounts to servers - using weaker password hashes is 0x37037 (lanman, - plaintext, ntlm, ntlmv2, signing allowed). Some - SecurityFlags require the corresponding menuconfig - options to be enabled. Enabling plaintext - authentication currently requires also enabling - lanman authentication in the security flags - because the cifs module only supports sending - laintext passwords using the older lanman dialect - form of the session setup SMB. (e.g. for authentication - using plain text passwords, set the SecurityFlags - to 0x30030):: + 0x00C5 + + (NTLMv2 and packet signing allowed). Some SecurityFlags + may require enabling a corresponding menuconfig option. may use packet signing 0x00001 must use packet signing 0x01001 - may use NTLM (most common password hash) 0x00002 - must use NTLM 0x02002 may use NTLMv2 0x00004 must use NTLMv2 0x04004 - may use Kerberos security 0x00008 - must use Kerberos 0x08008 - may use lanman (weak) password hash 0x00010 - must use lanman password hash 0x10010 - may use plaintext passwords 0x00020 - must use plaintext passwords 0x20020 - (reserved for future packet encryption) 0x00040 + may use Kerberos security (krb5) 0x00008 + must use Kerberos 0x08008 + may use NTLMSSP 0x00080 + must use NTLMSSP 0x80080 + seal (packet encryption) 0x00040 + must seal (not implemented yet) 0x40040 cifsFYI If set to non-zero value, additional debug information will be logged to the system error log. This field diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 557b68e99d0a..a865941724c0 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -1918,8 +1918,8 @@ require use of the stronger protocol */ #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ #define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */ -#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP) -#define CIFSSEC_MAX (CIFSSEC_MUST_NTLMV2) +#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP | CIFSSEC_MAY_SEAL) +#define CIFSSEC_MAX (CIFSSEC_MAY_SIGN | CIFSSEC_MUST_KRB5 | CIFSSEC_MAY_SEAL) #define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP) /* ***************************************************************** |