Merge branch 'v4-0-test' of ssh://git.samba.org/data/git/samba into v4-0-wsgi
[samba.git] / source4 / auth / credentials / credentials_files.c
index f23aecb0a01d9793ccc0fc215aa66298c89529c3..ab76ea2cdec0564c70690f2bada995840f03b5f8 100644 (file)
@@ -9,7 +9,7 @@
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
 #include "lib/ldb/include/ldb.h"
-#include "librpc/gen_ndr/ndr_samr.h" /* for struct samrPassword */
-#include "include/secrets.h"
+#include "librpc/gen_ndr/samr.h" /* for struct samrPassword */
+#include "param/secrets.h"
 #include "system/filesys.h"
+#include "util/util_ldb.h"
+#include "auth/credentials/credentials.h"
+#include "auth/credentials/credentials_krb5.h"
+#include "param/param.h"
+#include "lib/events/events.h"
 
 /**
  * Read a file descriptor, and parse it for a password (eg from a file or stdin)
@@ -36,7 +40,7 @@
  * @param obtained This enum describes how 'specified' this password is
  */
 
-BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials, 
+_PUBLIC_ bool cli_credentials_parse_password_fd(struct cli_credentials *credentials, 
                                       int fd, enum credentials_obtained obtained)
 {
        char *p;
@@ -50,6 +54,7 @@ BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials,
                                *++p = '\0'; /* advance p, and null-terminate pass */
                                break;
                        }
+                       /* fall through */
                case 0:
                        if (p - pass) {
                                *p = '\0'; /* null-terminate it, just in case... */
@@ -57,18 +62,18 @@ BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials,
                                break;
                        } else {
                                fprintf(stderr, "Error reading password from file descriptor %d: %s\n", fd, "empty password\n");
-                               return False;
+                               return false;
                        }
 
                default:
                        fprintf(stderr, "Error reading password from file descriptor %d: %s\n",
                                        fd, strerror(errno));
-                       return False;
+                       return false;
                }
        }
 
        cli_credentials_set_password(credentials, pass, obtained);
-       return True;
+       return true;
 }
 
 /**
@@ -79,15 +84,15 @@ BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials,
  * @param obtained This enum describes how 'specified' this password is
  */
 
-BOOL cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained)
+_PUBLIC_ bool cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained)
 {
        int fd = open(file, O_RDONLY, 0);
-       BOOL ret;
+       bool ret;
 
        if (fd < 0) {
-               fprintf(stderr, "Error opening PASSWD_FILE %s: %s\n",
+               fprintf(stderr, "Error opening password file %s: %s\n",
                                file, strerror(errno));
-               return False;
+               return false;
        }
 
        ret = cli_credentials_parse_password_fd(credentials, fd, obtained);
@@ -105,7 +110,7 @@ BOOL cli_credentials_parse_password_file(struct cli_credentials *credentials, co
  * @param obtained This enum describes how 'specified' this password is
  */
 
-BOOL cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained) 
+_PUBLIC_ bool cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained) 
 {
        uint16_t len = 0;
        char *ptr, *val, *param;
@@ -118,7 +123,7 @@ BOOL cli_credentials_parse_file(struct cli_credentials *cred, const char *file,
        {
                /* fail if we can't open the credentials file */
                d_printf("ERROR: Unable to open credentials file!\n");
-               return False;
+               return false;
        }
 
        for (i = 0; i < numlines; i++) {
@@ -154,7 +159,7 @@ BOOL cli_credentials_parse_file(struct cli_credentials *cred, const char *file,
 
        talloc_free(lines);
 
-       return True;
+       return true;
 }
 
 
@@ -164,23 +169,30 @@ BOOL cli_credentials_parse_file(struct cli_credentials *cred, const char *file,
  * @param cred Credentials structure to fill in
  * @retval NTSTATUS error detailing any failure
  */
-static NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred, 
-                                           const char *base,
-                                           const char *filter)
+_PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred, 
+                                             struct event_context *event_ctx,
+                                    struct loadparm_context *lp_ctx,
+                                    struct ldb_context *ldb,
+                                    const char *base,
+                                    const char *filter)
 {
        TALLOC_CTX *mem_ctx;
        
-       struct ldb_context *ldb;
        int ldb_ret;
        struct ldb_message **msgs;
        const char *attrs[] = {
                "secret",
+               "priorSecret",
                "samAccountName",
                "flatname",
                "realm",
                "secureChannelType",
-               "ntPwdHash",
+               "unicodePwd",
                "msDS-KeyVersionNumber",
+               "saltPrincipal",
+               "privateKeytab",
+               "krb5Keytab",
+               "servicePrincipalName",
                NULL
        };
        
@@ -190,54 +202,77 @@ static NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
        const char *domain;
        const char *realm;
        enum netr_SchannelType sct;
+       const char *salt_principal;
+       const char *keytab;
        
        /* ok, we are going to get it now, don't recurse back here */
-       cred->machine_account_pending = False;
+       cred->machine_account_pending = false;
+
+       /* some other parts of the system will key off this */
+       cred->machine_account = true;
 
        mem_ctx = talloc_named(cred, 0, "cli_credentials fetch machine password");
-       /* Local secrets are stored in secrets.ldb */
-       ldb = secrets_db_connect(mem_ctx);
+
        if (!ldb) {
-               DEBUG(1, ("Could not open secrets.ldb\n"));
-               return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+               /* Local secrets are stored in secrets.ldb */
+               ldb = secrets_db_connect(mem_ctx, lp_ctx);
+               if (!ldb) {
+                       /* set anonymous as the fallback, if the machine account won't work */
+                       cli_credentials_set_anonymous(cred);
+                       DEBUG(1, ("Could not open secrets.ldb\n"));
+                       return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+               }
        }
 
        /* search for the secret record */
        ldb_ret = gendb_search(ldb,
-                              mem_ctx, ldb_dn_explode(mem_ctx, base), 
+                              mem_ctx, ldb_dn_new(mem_ctx, ldb, base), 
                               &msgs, attrs,
                               "%s", filter);
        if (ldb_ret == 0) {
-               DEBUG(1, ("Could not find join record to domain: %s\n",
-                         cli_credentials_get_domain(cred)));
+               DEBUG(1, ("Could not find entry to match filter: '%s' base: '%s'\n",
+                         filter, base));
+               /* set anonymous as the fallback, if the machine account won't work */
+               cli_credentials_set_anonymous(cred);
                talloc_free(mem_ctx);
                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
        } else if (ldb_ret != 1) {
-               DEBUG(1, ("Found more than one (%d) join records to domain: %s\n",
-                         ldb_ret, cli_credentials_get_domain(cred)));
+               DEBUG(1, ("Found more than one (%d) entry to match filter: '%s' base: '%s'\n",
+                         ldb_ret, filter, base));
+               /* set anonymous as the fallback, if the machine account won't work */
+               cli_credentials_set_anonymous(cred);
                talloc_free(mem_ctx);
                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
        }
        
-       password = ldb_msg_find_string(msgs[0], "secret", NULL);
-       old_password = ldb_msg_find_string(msgs[0], "priorSecret", NULL);
+       password = ldb_msg_find_attr_as_string(msgs[0], "secret", NULL);
+       old_password = ldb_msg_find_attr_as_string(msgs[0], "priorSecret", NULL);
 
-       machine_account = ldb_msg_find_string(msgs[0], "samAccountName", NULL);
+       machine_account = ldb_msg_find_attr_as_string(msgs[0], "samAccountName", NULL);
 
        if (!machine_account) {
-               DEBUG(1, ("Could not find 'samAccountName' in join record to domain: %s\n",
-                         cli_credentials_get_domain(cred)));
-               talloc_free(mem_ctx);
-               return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+               machine_account = ldb_msg_find_attr_as_string(msgs[0], "servicePrincipalName", NULL);
+               
+               if (!machine_account) {
+                       DEBUG(1, ("Could not find 'samAccountName' in join record to domain: %s: filter: '%s' base: '%s'\n",
+                                 cli_credentials_get_domain(cred), filter, base));
+                       /* set anonymous as the fallback, if the machine account won't work */
+                       cli_credentials_set_anonymous(cred);
+                       talloc_free(mem_ctx);
+                       return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+               }
        }
+
+       salt_principal = ldb_msg_find_attr_as_string(msgs[0], "saltPrincipal", NULL);
+       cli_credentials_set_salt_principal(cred, salt_principal);
        
-       sct = ldb_msg_find_int(msgs[0], "secureChannelType", 0);
+       sct = ldb_msg_find_attr_as_int(msgs[0], "secureChannelType", 0);
        if (sct) { 
                cli_credentials_set_secure_channel_type(cred, sct);
        }
        
        if (!password) {
-               const struct ldb_val *nt_password_hash = ldb_msg_find_ldb_val(msgs[0], "ntPwdHash");
+               const struct ldb_val *nt_password_hash = ldb_msg_find_ldb_val(msgs[0], "unicodePwd");
                struct samr_Password hash;
                ZERO_STRUCT(hash);
                if (nt_password_hash) {
@@ -246,31 +281,42 @@ static NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
                
                        cli_credentials_set_nt_hash(cred, &hash, CRED_SPECIFIED);
                } else {
-               
-                       DEBUG(1, ("Could not find 'secret' in join record to domain: %s\n",
-                                 cli_credentials_get_domain(cred)));
-                       talloc_free(mem_ctx);
-                       return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+                       cli_credentials_set_password(cred, NULL, CRED_SPECIFIED);
                }
+       } else {
+               cli_credentials_set_password(cred, password, CRED_SPECIFIED);
        }
+
        
-       domain = ldb_msg_find_string(msgs[0], "flatname", NULL);
+       domain = ldb_msg_find_attr_as_string(msgs[0], "flatname", NULL);
        if (domain) {
                cli_credentials_set_domain(cred, domain, CRED_SPECIFIED);
        }
 
-       realm = ldb_msg_find_string(msgs[0], "realm", NULL);
+       realm = ldb_msg_find_attr_as_string(msgs[0], "realm", NULL);
        if (realm) {
                cli_credentials_set_realm(cred, realm, CRED_SPECIFIED);
        }
 
        cli_credentials_set_username(cred, machine_account, CRED_SPECIFIED);
-       if (password) {
-               cli_credentials_set_password(cred, password, CRED_SPECIFIED);
-       }
 
-       cli_credentials_set_kvno(cred, ldb_msg_find_int(msgs[0], "msDS-KeyVersionNumber", 0));
-       
+       cli_credentials_set_kvno(cred, ldb_msg_find_attr_as_int(msgs[0], "msDS-KeyVersionNumber", 0));
+
+       /* If there was an external keytab specified by reference in
+        * the LDB, then use this.  Otherwise we will make one up
+        * (chewing CPU time) from the password */
+       keytab = ldb_msg_find_attr_as_string(msgs[0], "krb5Keytab", NULL);
+       if (keytab) {
+               cli_credentials_set_keytab_name(cred, event_ctx, lp_ctx, keytab, CRED_SPECIFIED);
+       } else {
+               keytab = ldb_msg_find_attr_as_string(msgs[0], "privateKeytab", NULL);
+               if (keytab) {
+                       keytab = talloc_asprintf(mem_ctx, "FILE:%s", private_path(mem_ctx, lp_ctx, keytab));
+                       if (keytab) {
+                               cli_credentials_set_keytab_name(cred, event_ctx, lp_ctx, keytab, CRED_SPECIFIED);
+                       }
+               }
+       }
        talloc_free(mem_ctx);
        
        return NT_STATUS_OK;
@@ -282,11 +328,18 @@ static NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
  * @param cred Credentials structure to fill in
  * @retval NTSTATUS error detailing any failure
  */
-NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred)
+_PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred,
+                                                     struct loadparm_context *lp_ctx)
 {
-       char *filter = talloc_asprintf(cred, SECRETS_PRIMARY_DOMAIN_FILTER, 
+       char *filter;
+       /* Bleh, nasty recursion issues: We are setting a machine
+        * account here, so we don't want the 'pending' flag around
+        * any more */
+       cred->machine_account_pending = false;
+       filter = talloc_asprintf(cred, SECRETS_PRIMARY_DOMAIN_FILTER, 
                                       cli_credentials_get_domain(cred));
-       return cli_credentials_set_secrets(cred, SECRETS_PRIMARY_DOMAIN_DN,
+       return cli_credentials_set_secrets(cred, event_context_find(cred), lp_ctx, NULL, 
+                                          SECRETS_PRIMARY_DOMAIN_DN,
                                           filter);
 }
 
@@ -296,12 +349,20 @@ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred)
  * @param cred Credentials structure to fill in
  * @retval NTSTATUS error detailing any failure
  */
-NTSTATUS cli_credentials_set_krbtgt(struct cli_credentials *cred)
+NTSTATUS cli_credentials_set_krbtgt(struct cli_credentials *cred,
+                                   struct event_context *event_ctx,
+                                   struct loadparm_context *lp_ctx)
 {
-       char *filter = talloc_asprintf(cred, SECRETS_KRBTGT_SEARCH,
+       char *filter;
+       /* Bleh, nasty recursion issues: We are setting a machine
+        * account here, so we don't want the 'pending' flag around
+        * any more */
+       cred->machine_account_pending = false;
+       filter = talloc_asprintf(cred, SECRETS_KRBTGT_SEARCH,
                                       cli_credentials_get_realm(cred),
                                       cli_credentials_get_domain(cred));
-       return cli_credentials_set_secrets(cred, SECRETS_PRINCIPALS_DN,
+       return cli_credentials_set_secrets(cred, event_ctx, lp_ctx, NULL, 
+                                          SECRETS_PRINCIPALS_DN,
                                           filter);
 }
 
@@ -311,15 +372,22 @@ NTSTATUS cli_credentials_set_krbtgt(struct cli_credentials *cred)
  * @param cred Credentials structure to fill in
  * @retval NTSTATUS error detailing any failure
  */
-NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
+_PUBLIC_ NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
+                                                      struct event_context *event_ctx,
+                                             struct loadparm_context *lp_ctx,
                                              const char *serviceprincipal)
 {
-       char *filter = talloc_asprintf(cred, SECRETS_PRINCIPAL_SEARCH,
-                                      cli_credentials_get_realm(cred),
-                                      cli_credentials_get_domain(cred),
-                                      serviceprincipal);
-       return cli_credentials_set_secrets(cred, SECRETS_PRINCIPALS_DN,
-                                          filter);
+       char *filter;
+       /* Bleh, nasty recursion issues: We are setting a machine
+        * account here, so we don't want the 'pending' flag around
+        * any more */
+       cred->machine_account_pending = false;
+       filter = talloc_asprintf(cred, SECRETS_PRINCIPAL_SEARCH,
+                                cli_credentials_get_realm(cred),
+                                cli_credentials_get_domain(cred),
+                                serviceprincipal);
+       return cli_credentials_set_secrets(cred, event_ctx, lp_ctx, NULL, 
+                                          SECRETS_PRINCIPALS_DN, filter);
 }
 
 /**
@@ -331,8 +399,11 @@ NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
  *       than during, popt processing.
  *
  */
-void cli_credentials_set_machine_account_pending(struct cli_credentials *cred)
+_PUBLIC_ void cli_credentials_set_machine_account_pending(struct cli_credentials *cred,
+                                                struct loadparm_context *lp_ctx)
 {
-       cred->machine_account_pending = True;
+       cred->machine_account_pending = true;
+       cred->machine_account_pending_lp_ctx = lp_ctx;
 }
 
+