*/
#include "includes.h"
+#include "../libcli/netlogon.h"
+#include "../libcli/cldap/cldap.h"
+#include "../lib/tsocket/tsocket.h"
struct sam_database_info {
uint32 index;
uint32 date_lo, date_hi;
};
+/**
+ * check whether the client belongs to the hosts
+ * for which initial logon should be delayed...
+ */
+static bool delay_logon(const char *peer_name, const char *peer_addr)
+{
+ const char **delay_list = lp_init_logon_delayed_hosts();
+ const char *peer[2];
+
+ if (delay_list == NULL) {
+ return False;
+ }
+
+ peer[0] = peer_name;
+ peer[1] = peer_addr;
+
+ return list_match(delay_list, (const char *)peer, client_match);
+}
+
+static void delayed_init_logon_handler(struct event_context *event_ctx,
+ struct timed_event *te,
+ struct timeval now,
+ void *private_data)
+{
+ struct packet_struct *p = (struct packet_struct *)private_data;
+
+ DEBUG(10, ("delayed_init_logon_handler (%lx): re-queuing packet.\n",
+ (unsigned long)te));
+
+ queue_packet(p);
+
+ TALLOC_FREE(te);
+}
+
+struct nmbd_proxy_logon_context {
+ struct cldap_socket *cldap_sock;
+};
+
+static struct nmbd_proxy_logon_context *global_nmbd_proxy_logon;
+
+bool initialize_nmbd_proxy_logon(void)
+{
+ const char *cldap_server = lp_parm_const_string(-1, "nmbd_proxy_logon",
+ "cldap_server", NULL);
+ struct nmbd_proxy_logon_context *ctx;
+ NTSTATUS status;
+ struct in_addr addr;
+ char addrstr[INET_ADDRSTRLEN];
+ const char *server_str;
+ int ret;
+ struct tsocket_address *server_addr;
+
+ if (!cldap_server) {
+ return true;
+ }
+
+ addr = interpret_addr2(cldap_server);
+ server_str = inet_ntop(AF_INET, &addr,
+ addrstr, sizeof(addrstr));
+ if (!server_str || strcmp("0.0.0.0", server_str) == 0) {
+ DEBUG(0,("Failed to resolve[%s] for nmbd_proxy_logon\n",
+ cldap_server));
+ return false;
+ }
+
+ ctx = talloc_zero(nmbd_event_context(),
+ struct nmbd_proxy_logon_context);
+ if (!ctx) {
+ return false;
+ }
+
+ ret = tsocket_address_inet_from_strings(ctx, "ipv4",
+ server_str, LDAP_PORT,
+ &server_addr);
+ if (ret != 0) {
+ TALLOC_FREE(ctx);
+ status = map_nt_error_from_unix(errno);
+ DEBUG(0,("Failed to create cldap tsocket_address for %s - %s\n",
+ server_str, nt_errstr(status)));
+ return false;
+ }
+
+ /* we create a connected udp socket */
+ status = cldap_socket_init(ctx, nmbd_event_context(), NULL,
+ server_addr, &ctx->cldap_sock);
+ TALLOC_FREE(server_addr);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(ctx);
+ DEBUG(0,("failed to create cldap socket for %s: %s\n",
+ server_str, nt_errstr(status)));
+ return false;
+ }
+
+ global_nmbd_proxy_logon = ctx;
+ return true;
+}
+
+struct nmbd_proxy_logon_state {
+ struct in_addr local_ip;
+ struct packet_struct *p;
+ const char *remote_name;
+ uint8_t remote_name_type;
+ const char *remote_mailslot;
+ struct nbt_netlogon_packet req;
+ struct nbt_netlogon_response resp;
+ struct cldap_netlogon io;
+};
+
+static int nmbd_proxy_logon_state_destructor(struct nmbd_proxy_logon_state *s)
+{
+ s->p->locked = false;
+ free_packet(s->p);
+ return 0;
+}
+
+static void nmbd_proxy_logon_done(struct tevent_req *subreq);
+
+static void nmbd_proxy_logon(struct nmbd_proxy_logon_context *ctx,
+ struct in_addr local_ip,
+ struct packet_struct *p,
+ uint8_t *buf,
+ uint32_t len)
+{
+ struct nmbd_proxy_logon_state *state;
+ enum ndr_err_code ndr_err;
+ DATA_BLOB blob = data_blob_const(buf, len);
+ const char *computer_name = NULL;
+ const char *mailslot_name = NULL;
+ const char *user_name = NULL;
+ const char *domain_sid = NULL;
+ uint32_t acct_control = 0;
+ uint32_t nt_version = 0;
+ struct tevent_req *subreq;
+ fstring source_name;
+ struct dgram_packet *dgram = &p->packet.dgram;
+
+ state = TALLOC_ZERO_P(ctx, struct nmbd_proxy_logon_state);
+ if (!state) {
+ DEBUG(0,("failed to allocate nmbd_proxy_logon_state\n"));
+ return;
+ }
+
+ pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
+ state->remote_name = talloc_strdup(state, source_name);
+ state->remote_name_type = dgram->source_name.name_type,
+ state->local_ip = local_ip;
+ state->p = p;
+
+ ndr_err = ndr_pull_struct_blob(
+ &blob, state, &state->req,
+ (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_packet);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+ DEBUG(0,("failed parse nbt_netlogon_packet: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(state);
+ return;
+ }
+
+ if (DEBUGLEVEL >= 10) {
+ DEBUG(10, ("nmbd_proxy_logon:\n"));
+ NDR_PRINT_DEBUG(nbt_netlogon_packet, &state->req);
+ }
+
+ switch (state->req.command) {
+ case LOGON_SAM_LOGON_REQUEST:
+ computer_name = state->req.req.logon.computer_name;
+ user_name = state->req.req.logon.user_name;
+ mailslot_name = state->req.req.logon.mailslot_name;
+ acct_control = state->req.req.logon.acct_control;
+ if (state->req.req.logon.sid_size > 0) {
+ domain_sid = dom_sid_string(state,
+ &state->req.req.logon.sid);
+ if (!domain_sid) {
+ DEBUG(0,("failed to get a string for sid\n"));
+ TALLOC_FREE(state);
+ return;
+ }
+ }
+ nt_version = state->req.req.logon.nt_version;
+ break;
+
+ default:
+ /* this can't happen as the caller already checks the command */
+ break;
+ }
+
+ state->remote_mailslot = mailslot_name;
+
+ if (user_name && strlen(user_name) == 0) {
+ user_name = NULL;
+ }
+
+ if (computer_name && strlen(computer_name) == 0) {
+ computer_name = NULL;
+ }
+
+ /*
+ * as the socket is connected,
+ * we don't need to specify the destination
+ */
+ state->io.in.dest_address = NULL;
+ state->io.in.dest_port = 0;
+ state->io.in.realm = NULL;
+ state->io.in.host = computer_name;
+ state->io.in.user = user_name;
+ state->io.in.domain_guid = NULL;
+ state->io.in.domain_sid = domain_sid;
+ state->io.in.acct_control = acct_control;
+ state->io.in.version = nt_version;
+ state->io.in.map_response = false;
+
+ subreq = cldap_netlogon_send(state,
+ ctx->cldap_sock,
+ &state->io);
+ if (!subreq) {
+ DEBUG(0,("failed to send cldap netlogon call\n"));
+ TALLOC_FREE(state);
+ return;
+ }
+ tevent_req_set_callback(subreq, nmbd_proxy_logon_done, state);
+
+ /* we reply async */
+ state->p->locked = true;
+ talloc_set_destructor(state, nmbd_proxy_logon_state_destructor);
+}
+
+static void nmbd_proxy_logon_done(struct tevent_req *subreq)
+{
+ struct nmbd_proxy_logon_state *state =
+ tevent_req_callback_data(subreq,
+ struct nmbd_proxy_logon_state);
+ NTSTATUS status;
+ DATA_BLOB response = data_blob_null;
+
+ status = cldap_netlogon_recv(subreq, state, &state->io);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("failed to recv cldap netlogon call: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(state);
+ return;
+ }
+
+ status = push_netlogon_samlogon_response(&response, state,
+ &state->io.out.netlogon);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("failed to push netlogon_samlogon_response: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(state);
+ return;
+ }
+
+ send_mailslot(true, state->remote_mailslot,
+ (char *)response.data, response.length,
+ global_myname(), 0x0,
+ state->remote_name,
+ state->remote_name_type,
+ state->p->ip,
+ state->local_ip,
+ state->p->port);
+ TALLOC_FREE(state);
+}
+
/****************************************************************************
Process a domain logon packet
**************************************************************************/
const char *mailslot)
{
struct dgram_packet *dgram = &p->packet.dgram;
- pstring my_name;
+ fstring my_name;
fstring reply_name;
- pstring outbuf;
+ char outbuf[1024];
int code;
uint16 token = 0;
uint32 ntversion = 0;
uint16 lmnttoken = 0;
uint16 lm20token = 0;
uint32 domainsidsize;
- BOOL short_request = False;
+ bool short_request = False;
char *getdc;
char *uniuser; /* Unicode user name. */
- pstring ascuser;
+ fstring ascuser;
char *unicomp; /* Unicode computer name. */
+ size_t size;
+ struct sockaddr_storage ss;
+ const struct sockaddr_storage *pss;
+ struct in_addr ip;
+
+ in_addr_to_sockaddr_storage(&ss, p->ip);
+ pss = iface_ip((struct sockaddr *)&ss);
+ if (!pss) {
+ DEBUG(5,("process_logon_packet:can't find outgoing interface "
+ "for packet from IP %s\n",
+ inet_ntoa(p->ip) ));
+ return;
+ }
+ ip = ((struct sockaddr_in *)pss)->sin_addr;
memset(outbuf, 0, sizeof(outbuf));
return;
}
- pstrcpy(my_name, global_myname());
+ fstrcpy(my_name, global_myname());
code = get_safe_SVAL(buf,len,buf,0,-1);
DEBUG(4,("process_logon_packet: Logon from %s: code = 0x%x\n", inet_ntoa(p->ip), code));
}
token = SVAL(q,3);
- fstrcpy(reply_name,my_name);
+ fstrcpy(reply_name,my_name);
pull_ascii_fstring(mach_str, machine);
pull_ascii_fstring(user_str, user);
fstrcpy(reply_name, "\\\\");
fstrcat(reply_name, my_name);
- push_ascii(q,reply_name,
+ size = push_ascii(q,reply_name,
sizeof(outbuf)-PTR_DIFF(q, outbuf),
STR_TERMINATE);
+ if (size == (size_t)-1) {
+ return;
+ }
q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
SSVAL(q, 0, token);
global_myname(), 0x0,
mach_str,
dgram->source_name.name_type,
- p->ip, *iface_ip(p->ip), p->port);
+ p->ip, ip, p->port);
break;
}
- case QUERYFORPDC:
+ case LOGON_PRIMARY_QUERY:
{
fstring mach_str, getdc_str;
fstring source_name;
/* Construct reply. */
q = outbuf;
- SSVAL(q, 0, QUERYFORPDC_R);
+ SSVAL(q, 0, NETLOGON_RESPONSE_FROM_PDC);
q += 2;
fstrcpy(reply_name,my_name);
- push_ascii(q, reply_name,
+ size = push_ascii(q, reply_name,
sizeof(outbuf)-PTR_DIFF(q, outbuf),
STR_TERMINATE);
+ if (size == (size_t)-1) {
+ return;
+ }
q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
/* PDC and domain name */
q = ALIGN2(q, outbuf);
q += dos_PutUniCode(q, my_name,
- sizeof(pstring) - PTR_DIFF(q, outbuf),
+ sizeof(outbuf) - PTR_DIFF(q, outbuf),
True); /* PDC name */
q += dos_PutUniCode(q, lp_workgroup(),
- sizeof(pstring) - PTR_DIFF(q, outbuf),
+ sizeof(outbuf) - PTR_DIFF(q, outbuf),
True); /* Domain name*/
- if (sizeof(pstring) - PTR_DIFF(q, outbuf) < 8) {
+ if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
return;
}
SIVAL(q, 0, 1); /* our nt version */
DEBUG(5,("process_logon_packet: GETDC request from %s at IP %s, \
reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
mach_str,inet_ntoa(p->ip), reply_name, lp_workgroup(),
- QUERYFORPDC_R, (uint32)ntversion, (uint32)lmnttoken,
+ NETLOGON_RESPONSE_FROM_PDC, (uint32)ntversion, (uint32)lmnttoken,
(uint32)lm20token ));
dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
global_myname(), 0x0,
source_name,
dgram->source_name.name_type,
- p->ip, *iface_ip(p->ip), p->port);
+ p->ip, ip, p->port);
return;
}
- case SAMLOGON:
+ case LOGON_SAM_LOGON_REQUEST:
{
fstring getdc_str;
fstring source_name;
+ char *source_addr;
char *q = buf + 2;
fstring asccomp;
+ if (global_nmbd_proxy_logon) {
+ nmbd_proxy_logon(global_nmbd_proxy_logon,
+ ip, p, (uint8_t *)buf, len);
+ return;
+ }
+
q += 2;
if (PTR_DIFF(q, buf) >= len) {
domainsidsize = IVAL(q, 0);
q += 4;
- DEBUG(5,("process_logon_packet: SAMLOGON sidsize %d, len = %d\n", domainsidsize, len));
+ DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d, len = %d\n", domainsidsize, len));
if (domainsidsize < (len - PTR_DIFF(q, buf)) && (domainsidsize != 0)) {
q += domainsidsize;
lm20token = SVAL(q, 6);
q += 8;
- DEBUG(3,("process_logon_packet: SAMLOGON sidsize %d ntv %d\n", domainsidsize, ntversion));
+ DEBUG(3,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d ntv %d\n", domainsidsize, ntversion));
/*
* we respond regadless of whether the machine is in our password
* database. If it isn't then we let smbd send an appropriate error.
* Let's ignore the SID.
*/
- pull_ucs2_pstring(ascuser, uniuser);
+ pull_ucs2_fstring(ascuser, uniuser);
pull_ucs2_fstring(asccomp, unicomp);
- DEBUG(5,("process_logon_packet: SAMLOGON user %s\n", ascuser));
+ DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST user %s\n", ascuser));
fstrcpy(reply_name, "\\\\"); /* Here it wants \\LOGONSERVER. */
fstrcat(reply_name, my_name);
- DEBUG(5,("process_logon_packet: SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
+ DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
asccomp,inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(),
- SAMLOGON_R ,lmnttoken));
+ LOGON_SAM_LOGON_RESPONSE ,lmnttoken));
/* Construct reply. */
/* never, at least for now */
if ((ntversion < 11) || (SEC_ADS != lp_security()) || (ROLE_DOMAIN_PDC != lp_server_role())) {
if (SVAL(uniuser, 0) == 0) {
- SSVAL(q, 0, SAMLOGON_UNK_R); /* user unknown */
+ SSVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN); /* user unknown */
} else {
- SSVAL(q, 0, SAMLOGON_R);
+ SSVAL(q, 0, LOGON_SAM_LOGON_RESPONSE);
}
q += 2;
q += dos_PutUniCode(q, reply_name,
- sizeof(pstring) - PTR_DIFF(q, outbuf),
+ sizeof(outbuf) - PTR_DIFF(q, outbuf),
True);
q += dos_PutUniCode(q, ascuser,
- sizeof(pstring) - PTR_DIFF(q, outbuf),
+ sizeof(outbuf) - PTR_DIFF(q, outbuf),
True);
q += dos_PutUniCode(q, lp_workgroup(),
- sizeof(pstring) - PTR_DIFF(q, outbuf),
+ sizeof(outbuf) - PTR_DIFF(q, outbuf),
True);
}
#ifdef HAVE_ADS
else {
struct GUID domain_guid;
UUID_FLAT flat_guid;
- pstring domain;
- pstring hostname;
+ char *domain;
+ char *hostname;
char *component, *dc, *q1;
- uint8 size;
char *q_orig = q;
int str_offset;
+ char *saveptr = NULL;
- get_mydnsdomname(domain);
- get_myname(hostname);
+ domain = get_mydnsdomname(talloc_tos());
+ if (!domain) {
+ DEBUG(2,
+ ("get_mydnsdomname failed.\n"));
+ return;
+ }
+ hostname = get_myname(talloc_tos());
+ if (!hostname) {
+ DEBUG(2,
+ ("get_myname failed.\n"));
+ return;
+ }
if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
return;
}
if (SVAL(uniuser, 0) == 0) {
- SIVAL(q, 0, SAMLOGON_AD_UNK_R); /* user unknown */
+ SIVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN_EX); /* user unknown */
} else {
- SIVAL(q, 0, SAMLOGON_AD_R);
+ SIVAL(q, 0, LOGON_SAM_LOGON_RESPONSE_EX);
}
q += 4;
- SIVAL(q, 0, ADS_PDC|ADS_GC|ADS_LDAP|ADS_DS|
- ADS_KDC|ADS_TIMESERV|ADS_CLOSEST|ADS_WRITABLE);
+ SIVAL(q, 0, NBT_SERVER_PDC|NBT_SERVER_GC|NBT_SERVER_LDAP|NBT_SERVER_DS|
+ NBT_SERVER_KDC|NBT_SERVER_TIMESERV|NBT_SERVER_CLOSEST|NBT_SERVER_WRITABLE);
q += 4;
/* Push Domain GUID */
str_offset = q - q_orig;
dc = domain;
q1 = q;
- while ((component = strtok(dc, "."))) {
+ while ((component = strtok_r(dc, ".", &saveptr)) != NULL) {
dc = NULL;
if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 1) {
return;
size = push_ascii(&q[1], component,
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
0);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
}
size = push_ascii(&q[1], hostname,
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
0);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
size = push_ascii(&q[1], lp_workgroup(),
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
STR_UPPER);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
size = push_ascii(&q[1], my_name,
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
0);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
size = push_ascii(&q[1], ascuser,
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
0);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
}
size = push_ascii(&q[1], "Default-First-Site-Name",
sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
0);
+ if (size == (size_t)-1 || size > 0xff) {
+ return;
+ }
SCVAL(q, 0, size);
q += (size + 1);
SIVAL(q, 0, 0x00000002);
q += 4; /* unknown */
- SIVAL(q, 0, (iface_ip(p->ip))->s_addr);
+ SIVAL(q, 0, ntohl(ip.s_addr));
q += 4;
SIVAL(q, 0, 0x00000000);
q += 4; /* unknown */
pull_ascii_fstring(getdc_str, getdc);
pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
+ source_addr = SMB_STRDUP(inet_ntoa(dgram->header.source_ip));
+ if (source_addr == NULL) {
+ DEBUG(3, ("out of memory copying client"
+ " address string\n"));
+ return;
+ }
+
+ /*
+ * handle delay.
+ * packets requeued after delay are marked as
+ * locked.
+ */
+ if ((p->locked == False) &&
+ (strlen(ascuser) == 0) &&
+ delay_logon(source_name, source_addr))
+ {
+ struct timeval when;
+
+ DEBUG(3, ("process_logon_packet: "
+ "delaying initial logon "
+ "reply for client %s(%s) for "
+ "%u milliseconds\n",
+ source_name, source_addr,
+ lp_init_logon_delay()));
+
+ when = timeval_current_ofs(0,
+ lp_init_logon_delay() * 1000);
+ p->locked = true;
+ event_add_timed(nmbd_event_context(),
+ NULL,
+ when,
+ delayed_init_logon_handler,
+ p);
+ } else {
+ DEBUG(3, ("process_logon_packet: "
+ "processing delayed initial "
+ "logon reply for client "
+ "%s(%s)\n",
+ source_name, source_addr));
+
+ p->locked = false;
+ send_mailslot(true, getdc,
+ outbuf,PTR_DIFF(q,outbuf),
+ global_myname(), 0x0,
+ source_name,
+ dgram->source_name.name_type,
+ p->ip, ip, p->port);
+ }
+
+ SAFE_FREE(source_addr);
- send_mailslot(True, getdc,
- outbuf,PTR_DIFF(q,outbuf),
- global_myname(), 0x0,
- source_name,
- dgram->source_name.name_type,
- p->ip, *iface_ip(p->ip), p->port);
break;
}
/* Announce change to UAS or SAM. Send by the domain controller when a
replication event is required. */
- case SAM_UAS_CHANGE:
- DEBUG(5, ("Got SAM_UAS_CHANGE\n"));
+ case NETLOGON_ANNOUNCE_UAS:
+ DEBUG(5, ("Got NETLOGON_ANNOUNCE_UAS\n"));
break;
default:
git.samba.org / samba.git / blobdiff