Added Steve Langasek <vorlon@netexpress.net> pam_smbpass PAM module code.

Note: Still have to add build stuff - not ready yet.
(This used to be commit 1de7022f98b64b15503aaf48c8d729789fc49781)

1 files changed, 123 insertions, 0 deletions

diff --git a/source3/pam_smbpass/general.h b/source3/pam_smbpass/general.h
new file mode 100644
index 0000000000..0291146cbb
--- /dev/null
+++ b/source3/pam_smbpass/general.h
@@ -0,0 +1,123 @@
+#ifndef LINUX
+/* This is only needed by modules in the Sun implementation. */
+#include <security/pam_appl.h>
+#endif  /* LINUX */
+
+#include <security/pam_modules.h>
+
+#ifndef PAM_AUTHTOK_RECOVER_ERR  
+#define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+/*
+ * here is the string to inform the user that the new passwords they
+ * typed were not the same.
+ */
+
+#define MISTYPED_PASS "Sorry, passwords do not match"
+
+/* type definition for the control options */
+
+typedef struct {
+     const char *token;
+     unsigned int mask;            /* shall assume 32 bits of flags */
+     unsigned int flag;
+} SMB_Ctrls;
+
+#ifndef False
+#define False (0)
+#endif
+
+#ifndef True
+#define True (1)
+#endif
+
+/* macro to determine if a given flag is on */
+#define on(x,ctrl)  (smb_args[x].flag & ctrl)
+
+/* macro to determine that a given flag is NOT on */
+#define off(x,ctrl) (!on(x,ctrl))
+
+/* macro to turn on/off a ctrl flag manually */
+#define set(x,ctrl)   (ctrl = ((ctrl)&smb_args[x].mask)|smb_args[x].flag)
+#define unset(x,ctrl) (ctrl &= ~(smb_args[x].flag))
+
+#ifndef __linux__
+#define strncasecmp(s1,s2,n) StrnCaseCmp(s1,s2,n)
+#endif
+
+/* the generic mask */
+#define _ALL_ON_  (~0U)
+
+/* end of macro definitions definitions for the control flags */
+
+/*
+ * These are the options supported by the smb password module, very
+ * similar to the pwdb options
+ */
+
+#define SMB__OLD_PASSWD		 0	/* internal */
+#define SMB__VERIFY_PASSWD	 1	/* internal */
+
+#define SMB_AUDIT		 2	/* print more things than debug..
+					   some information may be sensitive */
+#define SMB_USE_FIRST_PASS	 3
+#define SMB_TRY_FIRST_PASS	 4
+#define SMB_NOT_SET_PASS	 5	/* don't set the AUTHTOK items */
+
+#define SMB__NONULL		 6	/* internal */
+#define SMB__QUIET		 7	/* internal */
+#define SMB_USE_AUTHTOK		 8	/* insist on reading PAM_AUTHTOK */
+#define SMB__NULLOK		 9	/* Null token ok */
+#define SMB_DEBUG		10	/* send more info to syslog(3) */
+#define SMB_NODELAY		11	/* admin does not want a fail-delay */
+#define SMB_MIGRATE		12	/* Does no authentication, just
+					   updates the smb database. */
+#define SMB_CONF_FILE		13	/* Alternate location of smb.conf */
+
+#define SMB_CTRLS_		14	/* number of ctrl arguments defined */
+
+static const SMB_Ctrls smb_args[SMB_CTRLS_] = {
+/* symbol                 token name          ctrl mask      ctrl       *
+ * ------------------     ------------------  -------------- ---------- */
+
+/* SMB__OLD_PASSWD */	 {  NULL,            _ALL_ON_,              01 },
+/* SMB__VERIFY_PASSWD */ {  NULL,            _ALL_ON_,              02 },
+/* SMB_AUDIT */		 { "audit",          _ALL_ON_,              04 },
+/* SMB_USE_FIRST_PASS */ { "use_first_pass", _ALL_ON_^(030),       010 },
+/* SMB_TRY_FIRST_PASS */ { "try_first_pass", _ALL_ON_^(030),       020 },
+/* SMB_NOT_SET_PASS */	 { "not_set_pass",   _ALL_ON_,             040 },
+/* SMB__NONULL */	 {  "nonull",        _ALL_ON_,            0100 },
+/* SMB__QUIET */	 {  NULL,            _ALL_ON_,            0200 },
+/* SMB_USE_AUTHTOK */	 { "use_authtok",    _ALL_ON_,            0400 },
+/* SMB__NULLOK */	 { "nullok",         _ALL_ON_^(0100),        0 },
+/* SMB_DEBUG */		 { "debug",          _ALL_ON_,           01000 },
+/* SMB_NODELAY */	 { "nodelay",        _ALL_ON_,           02000 },
+/* SMB_MIGRATE */	 { "migrate",        _ALL_ON_^(0100),	 04000 },
+/* SMB_CONF_FILE */	 { "smbconf=",       _ALL_ON_,		     0 },
+};
+
+#define SMB_DEFAULTS  (smb_args[SMB__NONULL].flag)
+
+/*
+ * the following is used to keep track of the number of times a user fails
+ * to authenticate themself.
+ */
+
+#define FAIL_PREFIX			"-SMB-FAIL-"
+#define SMB_MAX_RETRIES			3
+
+struct _pam_failed_auth {
+    char *user;                 /* user that's failed to be authenticated */
+    int id;                     /* uid of requested user */
+    char *agent;                /* attempt from user with name */
+    int count;                  /* number of failures so far */
+};