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Diffstat (limited to 'source3/nsswitch/winbindd_pam.c')
-rw-r--r--source3/nsswitch/winbindd_pam.c139
1 files changed, 109 insertions, 30 deletions
diff --git a/source3/nsswitch/winbindd_pam.c b/source3/nsswitch/winbindd_pam.c
index e608f826c9..a8b508a49c 100644
--- a/source3/nsswitch/winbindd_pam.c
+++ b/source3/nsswitch/winbindd_pam.c
@@ -23,17 +23,41 @@
*/
#include "winbindd.h"
-
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
+
+static NTSTATUS append_info3_as_ndr(TALLOC_CTX *mem_ctx,
+ struct winbindd_cli_state *state,
+ NET_USER_INFO_3 *info3)
+{
+ prs_struct ps;
+ uint32 size;
+ if (!prs_init(&ps, 256 /* Random, non-zero number */, mem_ctx, MARSHALL)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ if (!net_io_user_info3("", info3, &ps, 1, 3)) {
+ prs_mem_free(&ps);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ size = prs_data_size(&ps);
+ state->response.extra_data = memdup(prs_data_p(&ps), size);
+ if (!state->response.extra_data) {
+ prs_mem_free(&ps);
+ return NT_STATUS_NO_MEMORY;
+ }
+ state->response.length += size;
+ prs_mem_free(&ps);
+ return NT_STATUS_OK;
+}
+
/* Return a password structure from a username. */
enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
{
NTSTATUS result;
fstring name_domain, name_user;
- int passlen;
unsigned char trust_passwd[16];
time_t last_change_time;
uint32 smb_uid_low;
@@ -46,6 +70,12 @@ enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
extern pstring global_myname;
+ /* Ensure null termination */
+ state->request.data.auth.user[sizeof(state->request.data.auth.user)-1]='\0';
+
+ /* Ensure null termination */
+ state->request.data.auth.pass[sizeof(state->request.data.auth.pass)-1]='\0';
+
DEBUG(3, ("[%5d]: pam auth %s\n", state->pid,
state->request.data.auth.user));
@@ -64,16 +94,14 @@ enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
goto done;
}
- passlen = strlen(state->request.data.auth.pass);
-
{
unsigned char local_lm_response[24];
unsigned char local_nt_response[24];
generate_random_buffer(chal, 8, False);
- SMBencrypt( (const uchar *)state->request.data.auth.pass, chal, local_lm_response);
+ SMBencrypt(state->request.data.auth.pass, chal, local_lm_response);
- SMBNTencrypt((const uchar *)state->request.data.auth.pass, chal, local_nt_response);
+ SMBNTencrypt(state->request.data.auth.pass, chal, local_nt_response);
lm_resp = data_blob_talloc(mem_ctx, local_lm_response, sizeof(local_lm_response));
nt_resp = data_blob_talloc(mem_ctx, local_nt_response, sizeof(local_nt_response));
@@ -140,34 +168,67 @@ enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
NET_USER_INFO_3 info3;
struct cli_state *cli = NULL;
TALLOC_CTX *mem_ctx = NULL;
- const char *domain = NULL;
+ char *user = NULL;
+ char *domain = NULL;
+ char *contact_domain;
+ char *workstation;
DATA_BLOB lm_resp, nt_resp;
extern pstring global_myname;
- DEBUG(3, ("[%5d]: pam auth crap domain: %s user: %s\n", state->pid,
- state->request.data.auth_crap.domain, state->request.data.auth_crap.user));
+ /* Ensure null termination */
+ state->request.data.auth_crap.user[sizeof(state->request.data.auth_crap.user)-1]='\0';
+
+ /* Ensure null termination */
+ state->request.data.auth_crap.domain[sizeof(state->request.data.auth_crap.domain)-1]='\0';
- if (!(mem_ctx = talloc_init_named("winbind pam auth crap for %s", state->request.data.auth.user))) {
+ if (!(mem_ctx = talloc_init_named("winbind pam auth crap for (utf8) %s", state->request.data.auth.user))) {
DEBUG(0, ("winbindd_pam_auth_crap: could not talloc_init()!\n"));
result = NT_STATUS_NO_MEMORY;
goto done;
}
+ if (pull_utf8_talloc(mem_ctx, &user, state->request.data.auth_crap.user) < 0) {
+ DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
+ }
+
if (*state->request.data.auth_crap.domain) {
- domain = talloc_strdup(mem_ctx, state->request.data.auth_crap.domain);
+ if (pull_utf8_talloc(mem_ctx, &domain, state->request.data.auth_crap.domain) < 0) {
+ DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
+ }
} else if (lp_winbind_use_default_domain()) {
- domain = talloc_strdup(mem_ctx, lp_workgroup());
+ domain = lp_workgroup();
} else {
- DEBUG(5,("no domain specified with username (%s) - failing auth\n", state->request.data.auth.user));
+ DEBUG(5,("no domain specified with username (%s) - failing auth\n",
+ user));
result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
- if (!domain) {
- DEBUG(0,("winbindd_pam_auth_crap: talloc_strdup failed!\n"));
- result = NT_STATUS_NO_MEMORY;
+ DEBUG(3, ("[%5d]: pam auth crap domain: %s user: %s\n", state->pid,
+ domain, user));
+
+ if (lp_allow_trusted_domains() && (state->request.data.auth_crap.flags & WINBIND_PAM_CONTACT_TRUSTDOM)) {
+ contact_domain = domain;
+ } else {
+ contact_domain = lp_workgroup();
+ }
+
+ if (*state->request.data.auth_crap.workstation) {
+ if (pull_utf8_talloc(mem_ctx, &workstation, state->request.data.auth_crap.workstation) < 0) {
+ DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
+ }
+ } else {
+ workstation = global_myname;
+ }
+
+ if (state->request.data.auth_crap.lm_resp_len > sizeof(state->request.data.auth_crap.lm_resp)
+ || state->request.data.auth_crap.nt_resp_len > sizeof(state->request.data.auth_crap.nt_resp)) {
+ DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
+ state->request.data.auth_crap.lm_resp_len,
+ state->request.data.auth_crap.nt_resp_len));
+ result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
@@ -175,13 +236,15 @@ enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
nt_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.nt_resp, state->request.data.auth_crap.nt_resp_len);
/*
- * Get the machine account password for our primary domain
+ * Get the machine account password for the domain to contact.
+ * This is either our own domain for a workstation, or possibly
+ * any domain for a PDC with trusted domains.
*/
- if (!secrets_fetch_trust_account_password(
- lp_workgroup(), trust_passwd, &last_change_time)) {
+ if (!secrets_fetch_trust_account_password (
+ contact_domain, trust_passwd, &last_change_time)) {
DEBUG(0, ("winbindd_pam_auth: could not fetch trust account "
- "password for domain %s\n", lp_workgroup()));
+ "password for domain %s\n", contact_domain));
result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
goto done;
}
@@ -189,7 +252,7 @@ enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
ZERO_STRUCT(info3);
/* Don't shut this down - it belongs to the connection cache code */
- result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
+ result = cm_get_netlogon_cli(contact_domain, trust_passwd, &cli);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(3, ("could not open handle to NETLOGON pipe (error: %s)\n", nt_errstr(result)));
@@ -197,27 +260,43 @@ enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
}
result = cli_netlogon_sam_network_logon(cli, mem_ctx,
- state->request.data.auth_crap.user, domain,
- global_myname, state->request.data.auth_crap.chal,
+ user, domain,
+ workstation, state->request.data.auth_crap.chal,
lm_resp, nt_resp,
&info3);
if (NT_STATUS_IS_OK(result)) {
uni_group_cache_store_netlogon(mem_ctx, &info3);
+ if (state->request.data.auth_crap.flags & WINBIND_PAM_INFO3_NDR) {
+ result = append_info3_as_ndr(mem_ctx, state, &info3);
+ }
+
+#if 0
+ /* we don't currently do this stuff right */
+ if (state->request.data.auth_crap.flags & WINBIND_PAM_NTKEY) {
+ SMB_ASSERT(sizeof(state->response.data.auth.nt_session_key) == sizeof(info3.user_sess_key));
+ memcpy(state->response.data.auth.nt_session_key, info3.user_sess_key, sizeof(state->response.data.auth.nt_session_key) /* 16 */);
+ }
+ if (state->request.data.auth_crap.flags & WINBIND_PAM_LMKEY) {
+ SMB_ASSERT(sizeof(state->response.data.auth.nt_session_key) <= sizeof(info3.user_sess_key));
+ memcpy(state->response.data.auth.first_8_lm_hash, info3.padding, sizeof(state->response.data.auth.nt_session_key) /* 16 */);
+ }
+#endif
}
done:
state->response.data.auth.nt_status = NT_STATUS_V(result);
- fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
- fstrcpy(state->response.data.auth.error_string, nt_errstr(result));
+ push_utf8_fstring(state->response.data.auth.nt_status_string, nt_errstr(result));
+ push_utf8_fstring(state->response.data.auth.error_string, nt_errstr(result));
state->response.data.auth.pam_error = nt_status_to_pam(result);
- DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("NTLM CRAP authenticaion for user [%s]\\[%s] returned %s (PAM: %d)\n",
- state->request.data.auth_crap.domain,
- state->request.data.auth_crap.user,
- state->response.data.auth.nt_status_string,
- state->response.data.auth.pam_error));
+ DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
+ ("NTLM CRAP authenticaion for user [%s]\\[%s] returned %s (PAM: %d)\n",
+ domain,
+ user,
+ state->response.data.auth.nt_status_string,
+ state->response.data.auth.pam_error));
if (mem_ctx)
talloc_destroy(mem_ctx);
generated by cgit (git 2.34.1) at 2024-12-12 06:51:09 +0000