#include "auth/auth.h"
#include "librpc/gen_ndr/ndr_netlogon.h"
#include "auth/auth_sam.h"
-#include "pstring.h"
+#include "auth/ntlm/ntlm_check.h"
#include "libcli/auth/libcli_auth.h"
#include "libcli/security/security.h"
#include "lib/events/events.h"
#include "lib/messaging/messaging.h"
#include "lib/messaging/irpc.h"
#include "auth/ntlmssp/ntlmssp.h"
+#include "param/param.h"
-#define SQUID_BUFFER_SIZE 2010
+#define INITIAL_BUFFER_SIZE 300
+#define MAX_BUFFER_SIZE 63000
enum stdio_helper_mode {
SQUID_2_4_BASIC,
typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2);
static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2);
static void manage_gensec_request (enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2);
static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2);
-static void manage_squid_request(enum stdio_helper_mode helper_mode,
+static void manage_squid_request(struct loadparm_context *lp_ctx,
+ enum stdio_helper_mode helper_mode,
stdio_helper_function fn, void **private2);
static const struct {
/* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
form DOMAIN/user into a domain and a user */
-static BOOL parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
- fstring user)
+static bool parse_ntlm_auth_domain_user(const char *domuser, char **domain,
+ char **user, char winbind_separator)
{
- char *p = strchr(domuser,*lp_winbind_separator());
+ char *p = strchr(domuser, winbind_separator);
if (!p) {
- return False;
+ return false;
}
- fstrcpy(user, p+1);
- fstrcpy(domain, domuser);
- domain[PTR_DIFF(p, domuser)] = 0;
+ *user = smb_xstrdup(p+1);
+ *domain = smb_xstrdup(domuser);
+ (*domain)[PTR_DIFF(p, domuser)] = 0;
- return True;
+ return true;
}
/**
/* Authenticate a user with a plaintext password */
-static BOOL check_plaintext_auth(const char *user, const char *pass,
- BOOL stdout_diagnostics)
+static bool check_plaintext_auth(const char *user, const char *pass,
+ bool stdout_diagnostics)
{
return (strcmp(pass, opt_password) == 0);
}
/* authenticate a user with an encrypted username/password */
-static NTSTATUS local_pw_check_specified(const char *username,
+static NTSTATUS local_pw_check_specified(struct loadparm_context *lp_ctx,
+ const char *username,
const char *domain,
const char *workstation,
const DATA_BLOB *challenge,
nt_status = ntlm_password_check(mem_ctx,
+ lp_lanman_auth(lp_ctx),
+ lp_ntlm_auth(lp_ctx),
MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT |
MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT,
challenge,
if (unix_name) {
asprintf(unix_name,
"%s%c%s", domain,
- *lp_winbind_separator(),
+ *lp_winbind_separator(lp_ctx),
username);
}
} else {
}
static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
char *user, *pass;
user=buf;
- pass=memchr(buf,' ',length);
+ pass = memchr(buf, ' ', length);
if (!pass) {
DEBUG(2, ("Password not found. Denying access\n"));
mux_printf(mux_id, "ERR\n");
rfc1738_unescape(pass);
}
- if (check_plaintext_auth(user, pass, False)) {
+ if (check_plaintext_auth(user, pass, false)) {
mux_printf(mux_id, "OK\n");
} else {
mux_printf(mux_id, "ERR\n");
to the calling application. The callback comes from within gensec */
static void manage_gensec_get_pw_request(enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **password)
{
DATA_BLOB in;
if (strlen(buf) < 2) {
DEBUG(1, ("query [%s] invalid", buf));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH Query invalid\n");
return;
}
if (strncmp(buf, "PW ", 3) == 0) {
- *password = talloc_strndup(*private /* hopefully the right gensec context, useful to use for talloc */,
+ *password = talloc_strndup(*private1 /* hopefully the right gensec context, useful to use for talloc */,
(const char *)in.data, in.length);
if (*password == NULL) {
DEBUG(1, ("Out of memory\n"));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH Out of memory\n");
data_blob_free(&in);
return;
}
return;
}
DEBUG(1, ("Asked for (and expected) a password\n"));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH Expected a password\n");
data_blob_free(&in);
}
/**
- * Callback for password credentails. This is not async, and when
- * GENSEC and the credentails code is made async, it will look rather
+ * Callback for password credentials. This is not async, and when
+ * GENSEC and the credentials code is made async, it will look rather
* different.
*/
char *password = NULL;
/* Ask for a password */
- mux_printf((unsigned int)credentials->priv_data, "PW\n");
+ mux_printf((unsigned int)(uintptr_t)credentials->priv_data, "PW\n");
credentials->priv_data = NULL;
- manage_squid_request(NUM_HELPER_MODES /* bogus */, manage_gensec_get_pw_request, (void **)&password);
+ manage_squid_request(cmdline_lp_ctx, NUM_HELPER_MODES /* bogus */, manage_gensec_get_pw_request, (void **)&password);
return password;
}
+/**
+ Check if a string is part of a list.
+**/
+static bool in_list(const char *s, const char *list, bool casesensitive)
+{
+ char *tok;
+ size_t tok_len = 1024;
+ const char *p=list;
+
+ if (!list)
+ return false;
+
+ tok = (char *)malloc(tok_len);
+ if (!tok) {
+ return false;
+ }
+
+ while (next_token(&p, tok, LIST_SEP, tok_len)) {
+ if ((casesensitive?strcmp:strcasecmp_m)(tok,s) == 0) {
+ free(tok);
+ return true;
+ }
+ }
+ free(tok);
+ return false;
+}
+
static void gensec_want_feature_list(struct gensec_security *state, char* feature_list)
{
- if (in_list("NTLMSSP_FEATURE_SESSION_KEY", feature_list, True)) {
+ if (in_list("NTLMSSP_FEATURE_SESSION_KEY", feature_list, true)) {
DEBUG(10, ("want GENSEC_FEATURE_SESSION_KEY\n"));
gensec_want_feature(state, GENSEC_FEATURE_SESSION_KEY);
}
- if (in_list("NTLMSSP_FEATURE_SIGN", feature_list, True)) {
+ if (in_list("NTLMSSP_FEATURE_SIGN", feature_list, true)) {
DEBUG(10, ("want GENSEC_FEATURE_SIGN\n"));
gensec_want_feature(state, GENSEC_FEATURE_SIGN);
}
- if (in_list("NTLMSSP_FEATURE_SEAL", feature_list, True)) {
+ if (in_list("NTLMSSP_FEATURE_SEAL", feature_list, true)) {
DEBUG(10, ("want GENSEC_FEATURE_SEAL\n"));
gensec_want_feature(state, GENSEC_FEATURE_SEAL);
}
}
static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
DATA_BLOB in;
const char *set_password;
};
struct gensec_ntlm_state *state;
- struct event_context *ev;
+ struct tevent_context *ev;
struct messaging_context *msg;
NTSTATUS nt_status;
- BOOL first = False;
+ bool first = false;
const char *reply_code;
struct cli_credentials *creds;
TALLOC_CTX *mem_ctx;
- if (*private) {
- state = *private;
+ if (*private1) {
+ state = (struct gensec_ntlm_state *)*private1;
} else {
state = talloc_zero(NULL, struct gensec_ntlm_state);
if (!state) {
mux_printf(mux_id, "BH No Memory\n");
exit(1);
}
- *private = state;
+ *private1 = state;
if (opt_password) {
state->set_password = opt_password;
}
if (strlen(buf) < 2) {
DEBUG(1, ("query [%s] invalid", buf));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH Query invalid\n");
return;
}
}
} else if ( (strncmp(buf, "OK", 2) == 0)) {
/* Just return BH, like ntlm_auth from Samba 3 does. */
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH Command expected\n");
data_blob_free(&in);
return;
} else if ( (strncmp(buf, "TT ", 3) != 0) &&
(strncmp(buf, "GK", 2) != 0) &&
(strncmp(buf, "GF", 2) != 0)) {
DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH SPNEGO request invalid\n");
data_blob_free(&in);
return;
}
+ ev = s4_event_context_init(state);
+ if (!ev) {
+ exit(1);
+ }
/* setup gensec */
if (!(state->gensec_state)) {
switch (stdio_helper_mode) {
case NTLMSSP_CLIENT_1:
/* setup the client side */
- nt_status = gensec_client_start(NULL, &state->gensec_state, NULL);
+ nt_status = gensec_client_start(NULL, &state->gensec_state, ev,
+ lp_gensec_settings(NULL, lp_ctx));
if (!NT_STATUS_IS_OK(nt_status)) {
exit(1);
}
break;
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
- ev = event_context_init(state);
- if (!ev) {
+ {
+ const char *winbind_method[] = { "winbind", NULL };
+ struct auth_context *auth_context;
+
+ msg = messaging_client_init(state, lp_messaging_path(state, lp_ctx),
+ lp_iconv_convenience(lp_ctx), ev);
+ if (!msg) {
exit(1);
}
- msg = messaging_client_init(state, ev);
- if (!msg) {
+ nt_status = auth_context_create_methods(mem_ctx,
+ winbind_method,
+ ev,
+ msg,
+ lp_ctx,
+ &auth_context);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
exit(1);
}
- if (!NT_STATUS_IS_OK(gensec_server_start(state, ev, msg, &state->gensec_state))) {
+
+ if (!NT_STATUS_IS_OK(gensec_server_start(state, ev,
+ lp_gensec_settings(state, lp_ctx),
+ auth_context, &state->gensec_state))) {
exit(1);
}
break;
+ }
default:
abort();
}
creds = cli_credentials_init(state->gensec_state);
- cli_credentials_set_conf(creds);
+ cli_credentials_set_conf(creds, lp_ctx);
if (opt_username) {
cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED);
}
cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED);
} else {
cli_credentials_set_password_callback(creds, get_password);
- creds->priv_data = (void*)mux_id;
+ creds->priv_data = (void*)(uintptr_t)mux_id;
}
if (opt_workstation) {
cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED);
switch (stdio_helper_mode) {
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
- cli_credentials_set_machine_account(creds);
+ cli_credentials_set_machine_account(creds, lp_ctx);
break;
default:
break;
case GSS_SPNEGO_SERVER:
nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO);
if (!in.length) {
- first = True;
+ first = true;
}
break;
case NTLMSSP_CLIENT_1:
if (!in.length) {
- first = True;
+ first = true;
}
/* fall through */
case SQUID_2_5_NTLMSSP:
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status)));
- mux_printf(mux_id, "BH\n");
+ mux_printf(mux_id, "BH GENSEC mech failed to start\n");
return;
}
struct security_token *token = session_info->security_token;
const char *sidstr = dom_sid_string(session_info,
token->sids[i]);
- grouplist = talloc_asprintf_append(grouplist, "%s,", sidstr);
+ grouplist = talloc_asprintf_append_buffer(grouplist, "%s,", sidstr);
}
mux_printf(mux_id, "GL %s\n", grouplist);
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
- reply_code = "BH";
+ reply_code = "BH NT_STATUS_ACCESS_DENIED";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
- reply_code = "BH";
+ reply_code = "BH NT_STATUS_UNSUCCESSFUL";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (!NT_STATUS_IS_OK(nt_status)) {
nt_status = gensec_session_info(state->gensec_state, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
- reply_code = "BH";
+ reply_code = "BH Failed to retrive session info";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC failed to retreive the session info: %s\n", nt_errstr(nt_status)));
} else {
reply_code = "AF";
reply_arg = talloc_asprintf(state->gensec_state,
"%s%s%s", session_info->server_info->domain_name,
- lp_winbind_separator(), session_info->server_info->account_name);
+ lp_winbind_separator(lp_ctx), session_info->server_info->account_name);
talloc_free(session_info);
}
} else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
}
static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
- char *buf, int length, void **private,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
char *request, *parameter;
static char *username;
static char *domain;
static char *plaintext_password;
- static BOOL ntlm_server_1_user_session_key;
- static BOOL ntlm_server_1_lm_session_key;
+ static bool ntlm_server_1_user_session_key;
+ static bool ntlm_server_1_lm_session_key;
if (strequal(buf, ".")) {
if (!full_username && !username) {
} else if (plaintext_password) {
/* handle this request as plaintext */
if (!full_username) {
- if (asprintf(&full_username, "%s%c%s", domain, *lp_winbind_separator(), username) == -1) {
+ if (asprintf(&full_username, "%s%c%s", domain, *lp_winbind_separator(lp_ctx), username) == -1) {
mux_printf(mux_id, "Error: Out of memory in asprintf!\n.\n");
return;
}
}
- if (check_plaintext_auth(full_username, plaintext_password, False)) {
+ if (check_plaintext_auth(full_username, plaintext_password, false)) {
mux_printf(mux_id, "Authenticated: Yes\n");
} else {
mux_printf(mux_id, "Authenticated: No\n");
uint32_t flags = 0;
if (full_username && !username) {
- fstring fstr_user;
- fstring fstr_domain;
-
- if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
+ SAFE_FREE(username);
+ SAFE_FREE(domain);
+ if (!parse_ntlm_auth_domain_user(full_username, &username,
+ &domain,
+ *lp_winbind_separator(lp_ctx))) {
/* username might be 'tainted', don't print into our new-line deleimianted stream */
mux_printf(mux_id, "Error: Could not parse into domain and username\n");
}
- SAFE_FREE(username);
- SAFE_FREE(domain);
- username = smb_xstrdup(fstr_user);
- domain = smb_xstrdup(fstr_domain);
}
if (!domain) {
- domain = smb_xstrdup(lp_workgroup());
+ domain = smb_xstrdup(lp_workgroup(lp_ctx));
}
if (ntlm_server_1_lm_session_key)
flags |= NTLM_AUTH_FLAG_USER_SESSION_KEY;
if (!NT_STATUS_IS_OK(
- local_pw_check_specified(username,
+ local_pw_check_specified(lp_ctx,
+ username,
domain,
- lp_netbios_name(),
+ lp_netbios_name(lp_ctx),
&challenge,
&lm_response,
&nt_response,
SAFE_FREE(username);
SAFE_FREE(domain);
SAFE_FREE(plaintext_password);
- ntlm_server_1_user_session_key = False;
- ntlm_server_1_lm_session_key = False;
+ ntlm_server_1_user_session_key = false;
+ ntlm_server_1_lm_session_key = false;
mux_printf(mux_id, ".\n");
return;
}
if (strequal(request, "LANMAN-Challenge")) {
- challenge = strhex_to_data_blob(parameter);
+ challenge = strhex_to_data_blob(NULL, parameter);
if (challenge.length != 8) {
mux_printf(mux_id, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
parameter,
challenge = data_blob(NULL, 0);
}
} else if (strequal(request, "NT-Response")) {
- nt_response = strhex_to_data_blob(parameter);
+ nt_response = strhex_to_data_blob(NULL, parameter);
if (nt_response.length < 24) {
mux_printf(mux_id, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
parameter,
nt_response = data_blob(NULL, 0);
}
} else if (strequal(request, "LANMAN-Response")) {
- lm_response = strhex_to_data_blob(parameter);
+ lm_response = strhex_to_data_blob(NULL, parameter);
if (lm_response.length != 24) {
mux_printf(mux_id, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
parameter,
}
}
-static void manage_squid_request(enum stdio_helper_mode helper_mode,
+static void manage_squid_request(struct loadparm_context *lp_ctx, enum stdio_helper_mode helper_mode,
stdio_helper_function fn, void **private2)
{
- char buf[SQUID_BUFFER_SIZE+1];
+ char *buf;
+ char tmp[INITIAL_BUFFER_SIZE+1];
unsigned int mux_id = 0;
- int length;
+ int length, buf_size = 0;
char *c;
- static BOOL err;
struct mux_private {
unsigned int max_mux;
void **private_pointers;
};
-
+
static struct mux_private *mux_private;
static void *normal_private;
- void **private;
+ void **private1;
- /* this is not a typo - x_fgets doesn't work too well under squid */
- if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
- if (ferror(stdin)) {
- DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
- strerror(ferror(stdin))));
-
- exit(1); /* BIIG buffer */
- }
- exit(0);
- }
-
- c=memchr(buf,'\n',sizeof(buf)-1);
- if (c) {
- *c = '\0';
- length = c-buf;
- } else {
- err = 1;
- return;
- }
- if (err) {
- DEBUG(0, ("Oversized message\n"));
+ buf = talloc_strdup(NULL, "");
+
+ if (buf == NULL) {
+ DEBUG(0, ("Failed to allocate memory for reading the input "
+ "buffer.\n"));
x_fprintf(x_stdout, "ERR\n");
- err = 0;
return;
}
+ do {
+ /* this is not a typo - x_fgets doesn't work too well under
+ * squid */
+ if (fgets(tmp, INITIAL_BUFFER_SIZE, stdin) == NULL) {
+ if (ferror(stdin)) {
+ DEBUG(1, ("fgets() failed! dying..... errno=%d "
+ "(%s)\n", ferror(stdin),
+ strerror(ferror(stdin))));
+
+ exit(1); /* BIIG buffer */
+ }
+ exit(0);
+ }
+
+ buf = talloc_strdup_append_buffer(buf, tmp);
+ buf_size += INITIAL_BUFFER_SIZE;
+
+ if (buf_size > MAX_BUFFER_SIZE) {
+ DEBUG(0, ("Invalid Request (too large)\n"));
+ x_fprintf(x_stdout, "ERR\n");
+ talloc_free(buf);
+ return;
+ }
+
+ c = strchr(buf, '\n');
+ } while (c == NULL);
+
+ *c = '\0';
+ length = c-buf;
+
DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
if (buf[0] == '\0') {
DEBUG(0, ("Invalid Request (empty)\n"));
x_fprintf(x_stdout, "ERR\n");
+ talloc_free(buf);
return;
}
if (sscanf(buf, "%u ", &mux_id) != 1) {
DEBUG(0, ("Invalid Request - no multiplex id\n"));
x_fprintf(x_stdout, "ERR\n");
+ talloc_free(buf);
return;
}
if (!mux_private) {
if (!c) {
DEBUG(0, ("Invalid Request - no data after multiplex id\n"));
x_fprintf(x_stdout, "ERR\n");
+ talloc_free(buf);
return;
}
c++;
(sizeof(*mux_private->private_pointers) * (mux_private->max_mux - prev_max)));
};
- private = &mux_private->private_pointers[mux_id];
+ private1 = &mux_private->private_pointers[mux_id];
} else {
c = buf;
- private = &normal_private;
+ private1 = &normal_private;
}
-
- fn(helper_mode, c, length, private, mux_id, private2);
+
+ fn(helper_mode, lp_ctx, c, length, private1, mux_id, private2);
+ talloc_free(buf);
}
-static void squid_stream(enum stdio_helper_mode stdio_mode,
+static void squid_stream(struct loadparm_context *lp_ctx,
+ enum stdio_helper_mode stdio_mode,
stdio_helper_function fn) {
/* initialize FDescs */
x_setbuf(x_stdout, NULL);
x_setbuf(x_stderr, NULL);
while(1) {
- manage_squid_request(stdio_mode, fn, NULL);
+ manage_squid_request(lp_ctx, stdio_mode, fn, NULL);
}
}
return 1;
}
- gensec_init();
+ gensec_init(cmdline_lp_ctx);
if (opt_domain == NULL) {
- opt_domain = lp_workgroup();
+ opt_domain = lp_workgroup(cmdline_lp_ctx);
}
if (helper_protocol) {
int i;
for (i=0; i<NUM_HELPER_MODES; i++) {
if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
- squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
+ squid_stream(cmdline_lp_ctx, stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
exit(0);
}
}
}
if (opt_workstation == NULL) {
- opt_workstation = lp_netbios_name();
+ opt_workstation = lp_netbios_name(cmdline_lp_ctx);
}
if (!opt_password) {
{
char *user;
- asprintf(&user, "%s%c%s", opt_domain, *lp_winbind_separator(), opt_username);
- if (!check_plaintext_auth(user, opt_password, True)) {
+ asprintf(&user, "%s%c%s", opt_domain, *lp_winbind_separator(cmdline_lp_ctx), opt_username);
+ if (!check_plaintext_auth(user, opt_password, true)) {
return 1;
}
}