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authorAndrew Tridgell <tridge@samba.org>2004-05-20 13:29:38 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:53:51 -0500
commitacda755f54f7458d1ff5e41bbf3a4ec6af4dadc0 (patch)
tree803235205ab92a9ca755b1827d21ba338d2d60f6 /source4/rpc_server
parentf0a8f718ff474009300af6746fa0fbb61c649ea9 (diff)
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r793: - don't make templates members of any class that would make them show
up in searches like "objectclass=user" - auto-add the computer objectclass for computer accounts on create - added two types of password change call in samr server - reset last_fault_code before each dcerpc call (This used to be commit c1a65f83f6a4c51e60efd204dab89c20cda65d2b)
Diffstat (limited to 'source4/rpc_server')
-rw-r--r--source4/rpc_server/samr/dcesrv_samr.c260
-rw-r--r--source4/rpc_server/samr/samdb.c27
2 files changed, 255 insertions, 32 deletions
diff --git a/source4/rpc_server/samr/dcesrv_samr.c b/source4/rpc_server/samr/dcesrv_samr.c
index e980c25b80..30856c6ce9 100644
--- a/source4/rpc_server/samr/dcesrv_samr.c
+++ b/source4/rpc_server/samr/dcesrv_samr.c
@@ -603,7 +603,7 @@ static NTSTATUS samr_CreateUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX
struct dcesrv_handle *u_handle;
int ret;
NTSTATUS status;
- const char *container;
+ const char *container, *additional_class=NULL;
ZERO_STRUCTP(r->out.acct_handle);
*r->out.access_granted = 0;
@@ -651,6 +651,7 @@ static NTSTATUS samr_CreateUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX
}
container = "Computers";
+ additional_class = "computer";
} else if (r->in.acct_flags == ACB_SVRTRUST) {
/* pull in all the template attributes */
@@ -662,6 +663,7 @@ static NTSTATUS samr_CreateUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX
}
container = "DomainControllers";
+ additional_class = "computer";
} else if (r->in.acct_flags == ACB_DOMTRUST) {
/* pull in all the template attributes */
@@ -673,6 +675,7 @@ static NTSTATUS samr_CreateUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX
}
container = "ForeignDomains"; /* FIXME: Is this correct?*/
+ additional_class = "computer";
} else {
return NT_STATUS_INVALID_PARAMETER;
@@ -700,6 +703,9 @@ static NTSTATUS samr_CreateUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX
samdb_msg_add_string(d_state->sam_ctx, mem_ctx, &msg, "cn", username);
samdb_msg_add_string(d_state->sam_ctx, mem_ctx, &msg, "sAMAccountName", username);
samdb_msg_add_string(d_state->sam_ctx, mem_ctx, &msg, "objectClass", "user");
+ if (additional_class) {
+ samdb_msg_add_string(d_state->sam_ctx, mem_ctx, &msg, "objectClass", additional_class);
+ }
samdb_msg_add_string(d_state->sam_ctx, mem_ctx, &msg, "objectSid", sidstr);
samdb_msg_set_ldaptime(d_state->sam_ctx, mem_ctx, &msg, "whenCreated", now);
samdb_msg_set_ldaptime(d_state->sam_ctx, mem_ctx, &msg, "whenChanged", now);
@@ -1829,13 +1835,233 @@ static NTSTATUS samr_SetUserInfo(struct dcesrv_call_state *dce_call, TALLOC_CTX
samr_ChangePasswordUser
*/
static NTSTATUS samr_ChangePasswordUser(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser *r)
+ struct samr_ChangePasswordUser *r)
+{
+ struct dcesrv_handle *h;
+ struct samr_account_state *a_state;
+ struct ldb_message **res, mod, *msg;
+ int i, ret;
+ struct samr_Hash *lmPwdHash=NULL, *ntPwdHash=NULL;
+ struct samr_Hash new_lmPwdHash, new_ntPwdHash, checkHash;
+ NTSTATUS status = NT_STATUS_OK;
+ const char * const attrs[] = { "lmPwdHash", "ntPwdHash" , NULL };
+
+ DCESRV_PULL_HANDLE(h, r->in.handle, SAMR_HANDLE_USER);
+
+ a_state = h->data;
+
+ /* fetch the old hashes */
+ ret = samdb_search(a_state->sam_ctx, mem_ctx, NULL, &res, attrs,
+ "dn=%s", a_state->account_dn);
+ if (ret != 1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ msg = res[0];
+
+ /* basic sanity checking on parameters */
+ if (!r->in.lm_present || !r->in.nt_present ||
+ !r->in.old_lm_crypted || !r->in.new_lm_crypted ||
+ !r->in.old_nt_crypted || !r->in.new_nt_crypted) {
+ /* we should really handle a change with lm not
+ present */
+ return NT_STATUS_INVALID_PARAMETER_MIX;
+ }
+ if (!r->in.cross1_present || !r->in.nt_cross) {
+ return NT_STATUS_NT_CROSS_ENCRYPTION_REQUIRED;
+ }
+ if (!r->in.cross2_present || !r->in.lm_cross) {
+ return NT_STATUS_LM_CROSS_ENCRYPTION_REQUIRED;
+ }
+
+ ret = samdb_result_hashes(mem_ctx, msg, "lmPwdHash", &lmPwdHash);
+ if (ret != 1) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+ ret = samdb_result_hashes(mem_ctx, msg, "ntPwdHash", &ntPwdHash);
+ if (ret != 1) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* decrypt and check the new lm hash */
+ D_P16(lmPwdHash->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
+ D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, lmPwdHash->hash, 16) != 0) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* decrypt and check the new nt hash */
+ D_P16(ntPwdHash->hash, r->in.new_nt_crypted->hash, new_ntPwdHash.hash);
+ D_P16(new_ntPwdHash.hash, r->in.old_nt_crypted->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, ntPwdHash->hash, 16) != 0) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* check the nt cross hash */
+ D_P16(lmPwdHash->hash, r->in.nt_cross->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, new_ntPwdHash.hash, 16) != 0) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* check the lm cross hash */
+ D_P16(ntPwdHash->hash, r->in.lm_cross->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, new_lmPwdHash.hash, 16) != 0) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ ZERO_STRUCT(mod);
+ mod.dn = talloc_strdup(mem_ctx, a_state->account_dn);
+ if (!mod.dn) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = samdb_set_password(a_state->sam_ctx, mem_ctx,
+ a_state->account_dn, a_state->domain_state->domain_dn,
+ &mod, NULL, &new_lmPwdHash, &new_ntPwdHash, True);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ for (i=0;i<mod.num_elements;i++) {
+ mod.elements[i].flags = LDB_FLAG_MOD_REPLACE;
+ }
+
+ /* modify the samdb record */
+ ret = samdb_modify(a_state->sam_ctx, mem_ctx, &mod);
+ if (ret != 0) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ samr_OemChangePasswordUser2
+*/
+static NTSTATUS samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+ struct samr_OemChangePasswordUser2 *r)
+{
+ NTSTATUS status;
+ char new_pass[512];
+ uint32 new_pass_len;
+ struct samr_CryptPassword *pwbuf = r->in.password;
+ void *sam_ctx;
+ const char *user_dn, *domain_dn;
+ int ret;
+ struct ldb_message **res, mod;
+ const char * const attrs[] = { "objectSid", "lmPwdHash", NULL };
+ const char *domain_sid;
+ struct samr_Hash *lmPwdHash;
+
+ if (pwbuf == NULL) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* this call doesn't take a policy handle, so we need to open
+ the sam db from scratch */
+ sam_ctx = samdb_connect();
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
+ }
+
+ /* we need the users dn and the domain dn (derived from the
+ user SID). We also need the current lm password hash in
+ order to decrypt the incoming password */
+ ret = samdb_search(sam_ctx,
+ mem_ctx, NULL, &res, attrs,
+ "(&(sAMAccountName=%s)(objectclass=user))",
+ r->in.account->name);
+ if (ret != 1) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ user_dn = res[0]->dn;
+
+ ret = samdb_result_hashes(mem_ctx, res[0], "lmPwdHash", &lmPwdHash);
+ if (ret != 1) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* decrypt the password we have been given */
+ SamOEMhash(pwbuf->data, lmPwdHash->hash, 516);
+
+ if (!decode_pw_buffer(pwbuf->data, new_pass, sizeof(new_pass),
+ &new_pass_len, STR_ASCII)) {
+ DEBUG(3,("samr: failed to decode password buffer\n"));
+ samdb_close(sam_ctx);
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* work out the domain dn */
+ domain_sid = samdb_result_sid_prefix(mem_ctx, res[0], "objectSid");
+ if (domain_sid == NULL) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ domain_dn = samdb_search_string(sam_ctx, mem_ctx, NULL, "dn",
+ "(objectSid=%s)", domain_sid);
+ if (!domain_dn) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+
+ ZERO_STRUCT(mod);
+ mod.dn = talloc_strdup(mem_ctx, user_dn);
+ if (!mod.dn) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* set the password - samdb needs to know both the domain and user DNs,
+ so the domain password policy can be used */
+ status = samdb_set_password(sam_ctx, mem_ctx,
+ user_dn, domain_dn,
+ &mod, new_pass,
+ NULL, NULL,
+ True);
+ if (!NT_STATUS_IS_OK(status)) {
+ samdb_close(sam_ctx);
+ return status;
+ }
+
+ /* modify the samdb record */
+ ret = samdb_modify(sam_ctx, mem_ctx, &mod);
+ if (ret != 0) {
+ samdb_close(sam_ctx);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ samdb_close(sam_ctx);
+ return NT_STATUS_OK;
+}
+
+
+/*
+ samr_ChangePasswordUser2
+*/
+static NTSTATUS samr_ChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+ struct samr_ChangePasswordUser2 *r)
{
DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
}
/*
+ samr_ChangePasswordUser3
+*/
+static NTSTATUS samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+ struct samr_ChangePasswordUser3 *r)
+{
+ DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
+}
+
+
+
+
+/*
samr_GetGroupsForUser
*/
static NTSTATUS samr_GetGroupsForUser(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
@@ -2001,26 +2227,6 @@ static NTSTATUS samr_RemoveMultipleMembersFromAlias(struct dcesrv_call_state *dc
/*
- samr_OemChangePasswordUser2
-*/
-static NTSTATUS samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_OemChangePasswordUser2 *r)
-{
- DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
-}
-
-
-/*
- samr_ChangePasswordUser2
-*/
-static NTSTATUS samr_ChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser2 *r)
-{
- DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
-}
-
-
-/*
samr_GetDomPwInfo
this fetches the default password properties for a domain
@@ -2153,16 +2359,6 @@ static NTSTATUS samr_Connect4(struct dcesrv_call_state *dce_call, TALLOC_CTX *me
/*
- samr_ChangePasswordUser3
-*/
-static NTSTATUS samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser3 *r)
-{
- DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
-}
-
-
-/*
samr_Connect5
*/
static NTSTATUS samr_Connect5(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
diff --git a/source4/rpc_server/samr/samdb.c b/source4/rpc_server/samr/samdb.c
index 76de26222d..c9d7d601b2 100644
--- a/source4/rpc_server/samr/samdb.c
+++ b/source4/rpc_server/samr/samdb.c
@@ -314,6 +314,33 @@ uint32 samdb_result_rid_from_sid(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
}
/*
+ pull a dom_sid structure from a objectSid in a result set.
+*/
+struct dom_sid *samdb_result_dom_sid(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr)
+{
+ const char *sidstr = ldb_msg_find_string(msg, attr, NULL);
+ if (!sidstr) return NULL;
+
+ return dom_sid_parse_talloc(mem_ctx, sidstr);
+}
+
+/*
+ pull a sid prefix from a objectSid in a result set.
+ this is used to find the domain sid for a user
+*/
+const char *samdb_result_sid_prefix(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr)
+{
+ struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, msg, attr);
+ if (!sid || sid->num_auths < 1) return NULL;
+
+ sid->num_auths--;
+
+ return dom_sid_string(mem_ctx, sid);
+}
+
+/*
pull a NTTIME in a result set.
*/
NTTIME samdb_result_nttime(struct ldb_message *msg, const char *attr, const char *default_value)