Import kernel part of SMB/CIFS requester.

Add smbfs(CIFS) filesystem.

Userland part will be in the ports tree for a while.

Obtained from:	smbfs-1.3.7-dev package.

1 files changed, 146 insertions, 0 deletions

diff --git a/sys/netsmb/smb_crypt.c b/sys/netsmb/smb_crypt.c
new file mode 100644
index 0000000..e72a385
--- /dev/null
+++ b/sys/netsmb/smb_crypt.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2000-2001, Boris Popov
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    This product includes software developed by Boris Popov.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#include <sys/param.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/proc.h>
+#include <sys/fcntl.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/sysctl.h>
+
+#include <sys/md4.h>
+#include <sys/iconv.h>
+
+#include <netsmb/smb.h>
+#include <netsmb/smb_conn.h>
+#include <netsmb/smb_subr.h>
+#include <netsmb/smb_dev.h>
+
+#include "opt_netsmb.h"
+
+#ifdef NETSMBCRYPTO
+
+#include <crypto/des/des.h>
+
+static u_char N8[] = {0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25};
+
+
+static void
+smb_E(const u_char *key, u_char *data, u_char *dest)
+{
+	des_key_schedule *ksp;
+	u_char kk[8];
+
+	kk[0] = key[0] & 0xfe;
+	kk[1] = key[0] << 7 | (key[1] >> 1 & 0xfe);
+	kk[2] = key[1] << 6 | (key[2] >> 2 & 0xfe);
+	kk[3] = key[2] << 5 | (key[3] >> 3 & 0xfe);
+	kk[4] = key[3] << 4 | (key[4] >> 4 & 0xfe);
+	kk[5] = key[4] << 3 | (key[5] >> 5 & 0xfe);
+	kk[6] = key[5] << 2 | (key[6] >> 6 & 0xfe);
+	kk[7] = key[6] << 1;
+	ksp = malloc(sizeof(des_key_schedule), M_SMBTEMP, M_WAITOK);
+	des_set_key((C_Block*)kk, *ksp);
+	des_ecb_encrypt((C_Block*)data, (C_Block*)dest, *ksp, 1);
+	free(ksp, M_SMBTEMP);
+}
+#endif
+
+
+int
+smb_encrypt(const u_char *apwd, u_char *C8, u_char *RN)
+{
+#ifdef NETSMBCRYPTO
+	u_char *p, *P14, *S21;
+
+	p = malloc(14 + 21, M_SMBTEMP, M_WAITOK);
+	bzero(p, 14 + 21);
+	P14 = p;
+	S21 = p + 14;
+	bcopy(apwd, P14, min(14, strlen(apwd)));
+	/*
+	 * S21 = concat(Ex(P14, N8), zeros(5));
+	 */
+	smb_E(P14, N8, S21);
+	smb_E(P14 + 7, N8, S21 + 8);
+
+	smb_E(S21, C8, RN);
+	smb_E(S21 + 7, C8, RN + 8);
+	smb_E(S21 + 14, C8, RN + 16);
+	free(p, M_SMBTEMP);
+	return 0;
+#else
+	SMBERROR("password encryption is not available\n");
+	bzero(RN, 24);
+	return EAUTH;
+#endif
+}
+
+int
+smb_ntencrypt(const u_char *apwd, u_char *C8, u_char *RN)
+{
+#ifdef NETSMBCRYPTO
+	u_char S21[21];
+	u_int16_t *unipwd;
+	MD4_CTX *ctxp;
+	int len;
+
+	len = strlen(apwd);
+	unipwd = malloc(len * sizeof(u_int16_t), M_SMBTEMP, M_WAITOK);
+	/*
+	 * S21 = concat(MD4(U(apwd)), zeros(5));
+	 */
+	smb_strtouni(unipwd, apwd);
+	ctxp = malloc(sizeof(MD4_CTX), M_SMBTEMP, M_WAITOK);
+	MD4Init(ctxp);
+	MD4Update(ctxp, (u_char*)unipwd, len * sizeof(u_int16_t));
+	free(unipwd, M_SMBTEMP);
+	bzero(S21, 21);
+	MD4Final(S21, ctxp);
+	free(ctxp, M_SMBTEMP);
+
+	smb_E(S21, C8, RN);
+	smb_E(S21 + 7, C8, RN + 8);
+	smb_E(S21 + 14, C8, RN + 16);
+	return 0;
+#else
+	SMBERROR("password encryption is not available\n");
+	bzero(RN, 24);
+	return EAUTH;
+#endif
+}
+