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Commit abb63d6c authored by Steve French's avatar Steve French
Browse files

[CIFS] Return better error when server requires signing but client forbids 



Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent d628ddb6

fs/cifs/CHANGES

+2 −1
Original line number Diff line number Diff line
@@ -11,7 +11,8 @@ connect fails (e.g. due to signing negotiation failure) fix 
leak that causes cifsd not to stop and rmmod to fail to cleanup

cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on

bigendian architectures. Fix possible memory corruption when

EAGAIN returned on kern_recvmsg.

EAGAIN returned on kern_recvmsg. Return better error if server

requires packet signing but client has disabled it.



Version 1.50

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

fs/cifs/cifssmb.c

+3 −1
Original line number Diff line number Diff line
@@ -663,10 +663,12 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) 
		/* MUST_SIGN already includes the MAY_SIGN FLAG

		   so if this is zero it means that signing is disabled */

		cFYI(1, ("Signing disabled"));

		if (server->secMode & SECMODE_SIGN_REQUIRED)

		if (server->secMode & SECMODE_SIGN_REQUIRED) {

			cERROR(1, ("Server requires "

				   "packet signing to be enabled in "

				   "/proc/fs/cifs/SecurityFlags."));

			rc = -EOPNOTSUPP;

		}

		server->secMode &=

			~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);

	} else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) {