dcerpc utility functions
Copyright (C) Andrew Tridgell 2003
+ Copyright (C) Jelmer Vernooij 2004
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
*/
#include "includes.h"
+#include "system/network.h"
+#include "librpc/gen_ndr/ndr_epmapper.h"
/*
- this ndr_size_* stuff should really be auto-generated ....
+ find the pipe name for a local IDL interface
*/
+const char *idl_pipe_name(const char *uuid, uint32_t if_version)
+{
+ struct dcerpc_interface_list *l;
+ for (l=dcerpc_pipes;l;l=l->next) {
+ if (strcasecmp(l->table->uuid, uuid) == 0 &&
+ l->table->if_version == if_version) {
+ return l->table->name;
+ }
+ }
+ return "UNKNOWN";
+}
+
+/*
+ find the number of calls defined by local IDL
+*/
+int idl_num_calls(const char *uuid, uint32_t if_version)
+{
+ struct dcerpc_interface_list *l;
+ for (l=dcerpc_pipes;l;l=l->next){
+ if (strcasecmp(l->table->uuid, uuid) == 0 &&
+ l->table->if_version == if_version) {
+ return l->table->num_calls;
+ }
+ }
+ return -1;
+}
-static size_t ndr_size_epm_floor(struct epm_floor *fl)
+
+/*
+ find a dcerpc interface by name
+*/
+const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
{
- size_t ret = 5;
- if (fl->lhs.protocol == EPM_PROTOCOL_UUID) {
- ret += 18;
+ struct dcerpc_interface_list *l;
+ for (l=dcerpc_pipes;l;l=l->next) {
+ if (strcasecmp(l->table->name, name) == 0) {
+ return l->table;
+ }
+ }
+ return NULL;
+}
+
+/*
+ find a dcerpc interface by uuid
+*/
+const struct dcerpc_interface_table *idl_iface_by_uuid(const char *uuid)
+{
+ struct dcerpc_interface_list *l;
+ for (l=dcerpc_pipes;l;l=l->next) {
+ if (strcasecmp(l->table->uuid, uuid) == 0) {
+ return l->table;
+ }
+ }
+ return NULL;
+}
+
+
+/*
+ push a dcerpc_packet into a blob, potentially with auth info
+*/
+NTSTATUS dcerpc_push_auth(DATA_BLOB *blob, TALLOC_CTX *mem_ctx,
+ struct dcerpc_packet *pkt,
+ struct dcerpc_auth *auth_info)
+{
+ NTSTATUS status;
+ struct ndr_push *ndr;
+
+ ndr = ndr_push_init_ctx(mem_ctx);
+ if (!ndr) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!(pkt->drep[0] & DCERPC_DREP_LE)) {
+ ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
+ }
+
+ if (pkt->pfc_flags & DCERPC_PFC_FLAG_ORPC) {
+ ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
+ }
+
+ if (auth_info) {
+ pkt->auth_length = auth_info->credentials.length;
} else {
- ret += fl->lhs.info.lhs_data.length;
+ pkt->auth_length = 0;
+ }
+
+ status = ndr_push_dcerpc_packet(ndr, NDR_SCALARS|NDR_BUFFERS, pkt);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (auth_info) {
+ status = ndr_push_dcerpc_auth(ndr, NDR_SCALARS|NDR_BUFFERS, auth_info);
}
- ret += fl->rhs.rhs_data.length;
- return ret;
+
+ *blob = ndr_push_blob(ndr);
+
+ /* fill in the frag length */
+ dcerpc_set_frag_length(blob, blob->length);
+
+ return NT_STATUS_OK;
}
-size_t ndr_size_epm_towers(struct epm_towers *towers)
+#define MAX_PROTSEQ 10
+
+static const struct {
+ const char *name;
+ enum dcerpc_transport_t transport;
+ int num_protocols;
+ enum epm_protocol protseq[MAX_PROTSEQ];
+} transports[] = {
+ { "ncacn_np", NCACN_NP, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB, EPM_PROTOCOL_NETBIOS }},
+ { "ncacn_ip_tcp", NCACN_IP_TCP, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP, EPM_PROTOCOL_IP } },
+ { "ncacn_http", NCACN_HTTP, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_HTTP, EPM_PROTOCOL_IP } },
+ { "ncadg_ip_udp", NCACN_IP_UDP, 3,
+ { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_UDP, EPM_PROTOCOL_IP } },
+ { "ncalrpc", NCALRPC, 2,
+ { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE } },
+ { "ncacn_unix_stream", NCACN_UNIX_STREAM, 2,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_UNIX_DS } },
+ { "ncadg_unix_dgram", NCADG_UNIX_DGRAM, 2,
+ { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_UNIX_DS } },
+ { "ncacn_at_dsp", NCACN_AT_DSP, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_APPLETALK, EPM_PROTOCOL_DSP } },
+ { "ncadg_at_ddp", NCADG_AT_DDP, 3,
+ { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_APPLETALK, EPM_PROTOCOL_DDP } },
+ { "ncacn_vns_ssp", NCACN_VNS_SPP, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_STREETTALK, EPM_PROTOCOL_VINES_SPP } },
+ { "ncacn_vns_ipc", NCACN_VNS_IPC, 3,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_STREETTALK, EPM_PROTOCOL_VINES_IPC }, },
+ { "ncadg_ipx", NCADG_IPX, 2,
+ { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_IPX },
+ },
+ { "ncacn_spx", NCACN_SPX, 2,
+ { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SPX },
+ },
+};
+
+static const struct {
+ const char *name;
+ uint32_t flag;
+} ncacn_options[] = {
+ {"sign", DCERPC_SIGN},
+ {"seal", DCERPC_SEAL},
+ {"connect", DCERPC_CONNECT},
+ {"validate", DCERPC_DEBUG_VALIDATE_BOTH},
+ {"print", DCERPC_DEBUG_PRINT_BOTH},
+ {"padcheck", DCERPC_DEBUG_PAD_CHECK},
+ {"bigendian", DCERPC_PUSH_BIGENDIAN}
+};
+
+
+
+/*
+ form a binding string from a binding structure
+*/
+const char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b)
{
- size_t ret = 2;
+ char *s = talloc_strdup(mem_ctx, "");
int i;
- for (i=0;i<towers->num_floors;i++) {
- ret += ndr_size_epm_floor(&towers->floors[i]);
+ const char *t_name=NULL;
+
+ for (i=0;i<ARRAY_SIZE(transports);i++) {
+ if (transports[i].transport == b->transport) {
+ t_name = transports[i].name;
+ }
+ }
+ if (!t_name) {
+ return NULL;
+ }
+
+ if (!GUID_all_zero(&b->object)) {
+ s = talloc_asprintf(s, "%s@",
+ GUID_string(mem_ctx, &b->object));
+ }
+
+ s = talloc_asprintf_append(s, "%s:", t_name);
+ if (!s) return NULL;
+
+ if (b->host) {
+ s = talloc_asprintf_append(s, "%s", b->host);
+ }
+
+ if (!b->endpoint && !b->options && !b->flags) {
+ return s;
+ }
+
+ s = talloc_asprintf_append(s, "[");
+
+ if (b->endpoint) {
+ s = talloc_asprintf_append(s, "%s", b->endpoint);
+ }
+
+ /* this is a *really* inefficent way of dealing with strings,
+ but this is rarely called and the strings are always short,
+ so I don't care */
+ for (i=0;b->options && b->options[i];i++) {
+ s = talloc_asprintf_append(s, ",%s", b->options[i]);
+ if (!s) return NULL;
+ }
+
+ for (i=0;i<ARRAY_SIZE(ncacn_options);i++) {
+ if (b->flags & ncacn_options[i].flag) {
+ s = talloc_asprintf_append(s, ",%s", ncacn_options[i].name);
+ if (!s) return NULL;
+ }
}
- return ret;
+
+ s = talloc_asprintf_append(s, "]");
+
+ return s;
}
/*
- work out what TCP port to use for a given interface on a given host
+ parse a binding string into a dcerpc_binding structure
*/
-NTSTATUS dcerpc_epm_map_tcp_port(const char *server,
- const char *uuid, unsigned version,
- uint32 *port)
+NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding *b)
+{
+ char *options, *type;
+ char *p;
+ int i, j, comma_count;
+
+ p = strchr(s, '@');
+
+ if (p && PTR_DIFF(p, s) == 36) { /* 36 is the length of a UUID */
+ NTSTATUS status;
+
+ status = GUID_from_string(s, &b->object);
+
+ if (NT_STATUS_IS_ERR(status)) {
+ DEBUG(0, ("Failed parsing UUID\n"));
+ return status;
+ }
+
+ s = p + 1;
+ } else {
+ ZERO_STRUCT(b->object);
+ }
+
+ b->object_version = 0;
+
+ p = strchr(s, ':');
+ if (!p) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ type = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
+ if (!type) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ for (i=0;i<ARRAY_SIZE(transports);i++) {
+ if (strcasecmp(type, transports[i].name) == 0) {
+ b->transport = transports[i].transport;
+ break;
+ }
+ }
+ if (i==ARRAY_SIZE(transports)) {
+ DEBUG(0,("Unknown dcerpc transport '%s'\n", type));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ s = p+1;
+
+ p = strchr(s, '[');
+ if (p) {
+ b->host = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
+ options = talloc_strdup(mem_ctx, p+1);
+ if (options[strlen(options)-1] != ']') {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ options[strlen(options)-1] = 0;
+ } else {
+ b->host = talloc_strdup(mem_ctx, s);
+ options = NULL;
+ }
+
+ if (!b->host) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ b->options = NULL;
+ b->flags = 0;
+ b->endpoint = NULL;
+
+ if (!options) {
+ return NT_STATUS_OK;
+ }
+
+ comma_count = count_chars(options, ',');
+
+ b->options = talloc_array_p(mem_ctx, const char *, comma_count+2);
+ if (!b->options) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ for (i=0; (p = strchr(options, ',')); i++) {
+ b->options[i] = talloc_strndup(mem_ctx, options, PTR_DIFF(p, options));
+ if (!b->options[i]) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ options = p+1;
+ }
+ b->options[i] = options;
+ b->options[i+1] = NULL;
+
+ /* some options are pre-parsed for convenience */
+ for (i=0;b->options[i];i++) {
+ for (j=0;j<ARRAY_SIZE(ncacn_options);j++) {
+ if (strcasecmp(ncacn_options[j].name, b->options[i]) == 0) {
+ int k;
+ b->flags |= ncacn_options[j].flag;
+ for (k=i;b->options[k];k++) {
+ b->options[k] = b->options[k+1];
+ }
+ i--;
+ break;
+ }
+ }
+ }
+
+ if (b->options[0]) {
+ /* Endpoint is first option */
+ b->endpoint = b->options[0];
+ if (strlen(b->endpoint) == 0) b->endpoint = NULL;
+
+ for (i=0;b->options[i];i++) {
+ b->options[i] = b->options[i+1];
+ }
+ }
+
+ if (b->options[0] == NULL)
+ b->options = NULL;
+
+ return NT_STATUS_OK;
+}
+
+const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor)
+{
+ switch (floor->lhs.protocol) {
+ case EPM_PROTOCOL_TCP:
+ if (floor->rhs.tcp.port == 0) return NULL;
+ return talloc_asprintf(mem_ctx, "%d", floor->rhs.tcp.port);
+
+ case EPM_PROTOCOL_UDP:
+ if (floor->rhs.udp.port == 0) return NULL;
+ return talloc_asprintf(mem_ctx, "%d", floor->rhs.udp.port);
+
+ case EPM_PROTOCOL_HTTP:
+ if (floor->rhs.http.port == 0) return NULL;
+ return talloc_asprintf(mem_ctx, "%d", floor->rhs.http.port);
+
+ case EPM_PROTOCOL_IP:
+ if (floor->rhs.ip.address == 0) {
+ return NULL;
+ }
+
+ {
+ struct ipv4_addr in;
+ in.addr = htonl(floor->rhs.ip.address);
+ return talloc_strdup(mem_ctx, sys_inet_ntoa(in));
+ }
+
+ case EPM_PROTOCOL_NCACN:
+ return NULL;
+
+ case EPM_PROTOCOL_NCADG:
+ return NULL;
+
+ case EPM_PROTOCOL_SMB:
+ if (strlen(floor->rhs.smb.unc) == 0) return NULL;
+ return talloc_strdup(mem_ctx, floor->rhs.smb.unc);
+
+ case EPM_PROTOCOL_PIPE:
+ if (strlen(floor->rhs.pipe.path) == 0) return NULL;
+ return talloc_strdup(mem_ctx, floor->rhs.pipe.path);
+
+ case EPM_PROTOCOL_NETBIOS:
+ if (strlen(floor->rhs.netbios.name) == 0) return NULL;
+ return talloc_strdup(mem_ctx, floor->rhs.netbios.name);
+
+ case EPM_PROTOCOL_NCALRPC:
+ return NULL;
+
+ case EPM_PROTOCOL_VINES_SPP:
+ return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_spp.port);
+
+ case EPM_PROTOCOL_VINES_IPC:
+ return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_ipc.port);
+
+ case EPM_PROTOCOL_STREETTALK:
+ return talloc_strdup(mem_ctx, floor->rhs.streettalk.streettalk);
+
+ case EPM_PROTOCOL_UNIX_DS:
+ if (strlen(floor->rhs.unix_ds.path) == 0) return NULL;
+ return talloc_strdup(mem_ctx, floor->rhs.unix_ds.path);
+
+ case EPM_PROTOCOL_NULL:
+ return NULL;
+
+ default:
+ DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
+ break;
+ }
+
+ return NULL;
+}
+
+static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor, const char *data)
+{
+ switch (floor->lhs.protocol) {
+ case EPM_PROTOCOL_TCP:
+ floor->rhs.tcp.port = atoi(data);
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_UDP:
+ floor->rhs.udp.port = atoi(data);
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_HTTP:
+ floor->rhs.http.port = atoi(data);
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_IP:
+ if (strlen(data) > 0) {
+ floor->rhs.ip.address = ntohl(interpret_addr(data));
+ } else {
+ floor->rhs.ip.address = 0;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_NCACN:
+ floor->rhs.ncacn.minor_version = 0;
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_NCADG:
+ floor->rhs.ncadg.minor_version = 0;
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_SMB:
+ floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
+ if (!floor->rhs.smb.unc) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_PIPE:
+ floor->rhs.pipe.path = talloc_strdup(mem_ctx, data);
+ if (!floor->rhs.pipe.path) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_NETBIOS:
+ floor->rhs.netbios.name = talloc_strdup(mem_ctx, data);
+ if (!floor->rhs.netbios.name) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_NCALRPC:
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_VINES_SPP:
+ floor->rhs.vines_spp.port = atoi(data);
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_VINES_IPC:
+ floor->rhs.vines_ipc.port = atoi(data);
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_STREETTALK:
+ floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
+ if (!floor->rhs.streettalk.streettalk) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_UNIX_DS:
+ floor->rhs.unix_ds.path = talloc_strdup(mem_ctx, data);
+ if (!floor->rhs.unix_ds.path) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+
+ case EPM_PROTOCOL_NULL:
+ return NT_STATUS_OK;
+
+ default:
+ DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
+ break;
+ }
+
+ return NT_STATUS_NOT_SUPPORTED;
+}
+
+enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot)
+{
+ int i;
+
+ /* Find a transport that has 'prot' as 4th protocol */
+ for (i=0;i<ARRAY_SIZE(transports);i++) {
+ if (transports[i].num_protocols >= 2 &&
+ transports[i].protseq[1] == prot) {
+ return transports[i].transport;
+ }
+ }
+
+ /* Unknown transport */
+ return -1;
+}
+
+enum dcerpc_transport_t dcerpc_transport_by_tower(struct epm_tower *tower)
+{
+ int i;
+
+ /* Find a transport that matches this tower */
+ for (i=0;i<ARRAY_SIZE(transports);i++) {
+ int j;
+ if (transports[i].num_protocols != tower->num_floors - 2) {
+ continue;
+ }
+
+ for (j = 0; j < transports[i].num_protocols; j++) {
+ if (transports[i].protseq[j] != tower->floors[j+2].lhs.protocol) {
+ break;
+ }
+ }
+
+ if (j == transports[i].num_protocols) {
+ return transports[i].transport;
+ }
+ }
+
+ /* Unknown transport */
+ return -1;
+}
+
+NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower, struct dcerpc_binding *binding)
+{
+ ZERO_STRUCT(binding->object);
+ binding->options = NULL;
+ binding->host = NULL;
+ binding->flags = 0;
+
+ binding->transport = dcerpc_transport_by_tower(tower);
+
+ if (binding->transport == -1) {
+ return NT_STATUS_NOT_SUPPORTED;
+ }
+
+ if (tower->num_floors < 1) {
+ return NT_STATUS_OK;
+ }
+
+ /* Set object uuid */
+ binding->object = tower->floors[0].lhs.info.uuid.uuid;
+ binding->object_version = tower->floors[0].lhs.info.uuid.version;
+
+ /* Ignore floor 1, it contains the NDR version info */
+
+ binding->options = NULL;
+
+ /* Set endpoint */
+ if (tower->num_floors >= 4) {
+ binding->endpoint = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[3]);
+ } else {
+ binding->endpoint = NULL;
+ }
+
+ /* Set network address */
+ if (tower->num_floors >= 5) {
+ binding->host = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[4]);
+ }
+ return NT_STATUS_OK;
+}
+
+NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding, struct epm_tower *tower)
+{
+ const enum epm_protocol *protseq = NULL;
+ int num_protocols = -1, i;
+ NTSTATUS status;
+
+ /* Find transport */
+ for (i=0;i<ARRAY_SIZE(transports);i++) {
+ if (transports[i].transport == binding->transport) {
+ protseq = transports[i].protseq;
+ num_protocols = transports[i].num_protocols;
+ break;
+ }
+ }
+
+ if (num_protocols == -1) {
+ DEBUG(0, ("Unable to find transport with id '%d'\n", binding->transport));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ tower->num_floors = 2 + num_protocols;
+ tower->floors = talloc_array_p(mem_ctx, struct epm_floor, tower->num_floors);
+
+ /* Floor 0 */
+ tower->floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
+ tower->floors[0].lhs.info.uuid.uuid = binding->object;
+ tower->floors[0].lhs.info.uuid.version = binding->object_version;
+ tower->floors[0].rhs.uuid.unknown = 0;
+
+ /* Floor 1 */
+ tower->floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
+ tower->floors[1].lhs.info.uuid.version = NDR_GUID_VERSION;
+ tower->floors[1].rhs.uuid.unknown = 0;
+ status = GUID_from_string(NDR_GUID, &tower->floors[1].lhs.info.uuid.uuid);
+ if (NT_STATUS_IS_ERR(status)) {
+ return status;
+ }
+
+ /* Floor 2 to num_protocols */
+ for (i = 0; i < num_protocols; i++) {
+ tower->floors[2 + i].lhs.protocol = protseq[i];
+ tower->floors[2 + i].lhs.info.lhs_data = data_blob_talloc(mem_ctx, NULL, 0);
+ ZERO_STRUCT(tower->floors[2 + i].rhs);
+ dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[2 + i], "");
+ }
+
+ /* The 4th floor contains the endpoint */
+ if (num_protocols >= 2 && binding->endpoint) {
+ status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[3], binding->endpoint);
+ if (NT_STATUS_IS_ERR(status)) {
+ return status;
+ }
+ }
+
+ /* The 5th contains the network address */
+ if (num_protocols >= 3 && binding->host) {
+ status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4], binding->host);
+ if (NT_STATUS_IS_ERR(status)) {
+ return status;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding,
+ const char *uuid, uint_t version)
{
struct dcerpc_pipe *p;
NTSTATUS status;
struct epm_Map r;
struct policy_handle handle;
- GUID guid;
+ struct GUID guid;
struct epm_twr_t twr, *twr_r;
+ struct dcerpc_binding epmapper_binding;
+ const struct dcerpc_interface_table *table = idl_iface_by_uuid(uuid);
+ int i;
- if (strcasecmp(uuid, DCERPC_EPMAPPER_UUID) == 0 ||
- strcasecmp(uuid, DCERPC_MGMT_UUID) == 0) {
- /* don't lookup epmapper via epmapper! */
- *port = EPMAPPER_PORT;
- return NT_STATUS_OK;
- }
+ /* First, check if there is a default endpoint specified in the IDL */
- status = dcerpc_pipe_open_tcp(&p, server, EPMAPPER_PORT);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
+ if (table) {
+ struct dcerpc_binding default_binding;
+
+ /* Find one of the default pipes for this interface */
+ for (i = 0; i < table->endpoints->count; i++) {
+ status = dcerpc_parse_binding(mem_ctx, table->endpoints->names[i], &default_binding);
+
+ if (NT_STATUS_IS_OK(status) && default_binding.transport == binding->transport && default_binding.endpoint) {
+ binding->endpoint = talloc_strdup(mem_ctx, default_binding.endpoint);
+ return NT_STATUS_OK;
+ }
+ }
}
- /* we can use the pipes memory context here as we will have a short
- lived connection */
- status = dcerpc_bind_byuuid(p, p->mem_ctx,
- DCERPC_EPMAPPER_UUID,
- DCERPC_EPMAPPER_VERSION);
+
+ ZERO_STRUCT(epmapper_binding);
+ epmapper_binding.transport = binding->transport;
+ epmapper_binding.host = binding->host;
+ epmapper_binding.options = NULL;
+ epmapper_binding.flags = 0;
+ epmapper_binding.endpoint = NULL;
+
+ status = dcerpc_pipe_connect_b(&p,
+ &epmapper_binding,
+ DCERPC_EPMAPPER_UUID,
+ DCERPC_EPMAPPER_VERSION,
+ NULL, NULL, NULL);
+
if (!NT_STATUS_IS_OK(status)) {
- dcerpc_pipe_close(p);
return status;
}
ZERO_STRUCT(handle);
ZERO_STRUCT(guid);
- twr.towers.num_floors = 5;
- twr.towers.floors = talloc(p->mem_ctx, sizeof(twr.towers.floors[0]) * 5);
-
- /* what I'd like for christmas ... */
-
- /* an RPC interface ... */
- twr.towers.floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
- GUID_from_string(uuid, &twr.towers.floors[0].lhs.info.uuid.uuid);
- twr.towers.floors[0].lhs.info.uuid.version = version;
- twr.towers.floors[0].rhs.rhs_data = data_blob_talloc(p->mem_ctx, NULL, 2);
-
- /* encoded with NDR ... */
- twr.towers.floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
- GUID_from_string(NDR_GUID, &twr.towers.floors[1].lhs.info.uuid.uuid);
- twr.towers.floors[1].lhs.info.uuid.version = NDR_GUID_VERSION;
- twr.towers.floors[1].rhs.rhs_data = data_blob_talloc(p->mem_ctx, NULL, 2);
-
- /* on an RPC connection ... */
- twr.towers.floors[2].lhs.protocol = EPM_PROTOCOL_RPC_C;
- twr.towers.floors[2].lhs.info.lhs_data = data_blob(NULL, 0);
- twr.towers.floors[2].rhs.rhs_data = data_blob_talloc(p->mem_ctx, NULL, 2);
+ status = GUID_from_string(uuid, &binding->object);
+ if (NT_STATUS_IS_ERR(status)) {
+ return status;
+ }
- /* on a TCP port ... */
- twr.towers.floors[3].lhs.protocol = EPM_PROTOCOL_TCP;
- twr.towers.floors[3].lhs.info.lhs_data = data_blob(NULL, 0);
- twr.towers.floors[3].rhs.rhs_data = data_blob_talloc(p->mem_ctx, NULL, 2);
+ binding->object_version = version;
- /* on an IP link ... */
- twr.towers.floors[4].lhs.protocol = EPM_PROTOCOL_IP;
- twr.towers.floors[4].lhs.info.lhs_data = data_blob(NULL, 0);
- twr.towers.floors[4].rhs.rhs_data = data_blob_talloc(p->mem_ctx, NULL, 4);
+ status = dcerpc_binding_build_tower(p, binding, &twr.tower);
+ if (NT_STATUS_IS_ERR(status)) {
+ return status;
+ }
/* with some nice pretty paper around it of course */
r.in.object = &guid;
r.in.max_towers = 1;
r.out.entry_handle = &handle;
- status = dcerpc_epm_Map(p, p->mem_ctx, &r);
+ status = dcerpc_epm_Map(p, p, &r);
if (!NT_STATUS_IS_OK(status)) {
dcerpc_pipe_close(p);
return status;
}
- if (r.out.status != 0 || r.out.num_towers != 1) {
+ if (r.out.result != 0 || r.out.num_towers != 1) {
dcerpc_pipe_close(p);
return NT_STATUS_PORT_UNREACHABLE;
}
return NT_STATUS_PORT_UNREACHABLE;
}
- if (twr_r->towers.num_floors != 5 ||
- twr_r->towers.floors[3].lhs.protocol != twr.towers.floors[3].lhs.protocol ||
- twr_r->towers.floors[3].rhs.rhs_data.length != 2) {
+ if (twr_r->tower.num_floors != twr.tower.num_floors ||
+ twr_r->tower.floors[3].lhs.protocol != twr.tower.floors[3].lhs.protocol) {
dcerpc_pipe_close(p);
return NT_STATUS_PORT_UNREACHABLE;
}
- *port = RSVAL(twr_r->towers.floors[3].rhs.rhs_data.data, 0);
+ binding->endpoint = dcerpc_floor_get_rhs_data(mem_ctx, &twr_r->tower.floors[3]);
dcerpc_pipe_close(p);
}
-/*
- find the pipe name for a local IDL interface
-*/
-const char *idl_pipe_name(const char *uuid, uint32 if_version)
+/* open a rpc connection to a rpc pipe on SMB using the binding
+ structure to determine the endpoint and options */
+static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **p,
+ struct dcerpc_binding *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
{
- int i;
- for (i=0;dcerpc_pipes[i];i++) {
- if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0 &&
- dcerpc_pipes[i]->if_version == if_version) {
- return dcerpc_pipes[i]->name;
+ NTSTATUS status;
+ BOOL retry;
+ struct smbcli_state *cli;
+ const char *pipe_name = NULL;
+ TALLOC_CTX *mem_ctx = talloc_init("dcerpc_pipe_connect_ncacn_np");
+
+ /* Look up identifier using the epmapper */
+ if (!binding->endpoint) {
+ status = dcerpc_epm_map_binding(mem_ctx, binding, pipe_uuid, pipe_version);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ talloc_destroy(mem_ctx);
+ return status;
}
+ DEBUG(1,("Mapped to DCERPC/NP pipe %s\n", binding->endpoint));
}
- return "UNKNOWN";
+
+ pipe_name = binding->endpoint;
+
+ if (!strncasecmp(pipe_name, "/pipe/", 6) ||
+ !strncasecmp(pipe_name, "\\pipe\\", 6)) {
+ pipe_name+=6;
+ }
+
+ if (pipe_name[0] != '\\') {
+ pipe_name = talloc_asprintf(mem_ctx, "\\%s", pipe_name);
+ }
+
+ if (!username || !username[0] ||
+ (binding->flags & DCERPC_SCHANNEL_ANY)) {
+ status = smbcli_full_connection(NULL, &cli, lp_netbios_name(),
+ binding->host, NULL,
+ "ipc$", "?????",
+ "", "", NULL, 0, &retry);
+ } else {
+ status = smbcli_full_connection(NULL, &cli, lp_netbios_name(),
+ binding->host, NULL,
+ "ipc$", "?????",
+ username, domain,
+ password, 0, &retry);
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to connect to %s - %s\n", binding->host, nt_errstr(status)));
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+
+ status = dcerpc_pipe_open_smb(p, cli->tree, pipe_name);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to open pipe %s - %s\n", pipe_name, nt_errstr(status)));
+ smbcli_tdis(cli);
+ smbcli_shutdown(cli);
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+
+ /* this ensures that the reference count is decremented so
+ a pipe close will really close the link */
+ talloc_steal(*p, cli);
+
+ (*p)->flags = binding->flags;
+
+ /* remember the binding string for possible secondary connections */
+ (*p)->binding_string = dcerpc_binding_string((*p), binding);
+
+ talloc_destroy(mem_ctx);
+
+ if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
+ status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
+ domain, username, password);
+ } else if (username && username[0] &&
+ (binding->flags & (DCERPC_CONNECT|DCERPC_SIGN|DCERPC_SEAL))) {
+ status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
+ } else {
+ status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
+
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to uuid %s - %s\n", pipe_uuid, nt_errstr(status)));
+ dcerpc_pipe_close(*p);
+ *p = NULL;
+ return status;
+ }
+
+ return NT_STATUS_OK;
}
+/* open a rpc connection to a rpc pipe on SMP using the binding
+ structure to determine the endpoint and options */
+static NTSTATUS dcerpc_pipe_connect_ncalrpc(struct dcerpc_pipe **p,
+ struct dcerpc_binding *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ NTSTATUS status;
+ TALLOC_CTX *mem_ctx = talloc_init("dcerpc_pipe_connect_ncalrpc");
+
+ /* Look up identifier using the epmapper */
+ if (!binding->endpoint) {
+ status = dcerpc_epm_map_binding(mem_ctx, binding, pipe_uuid, pipe_version);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to map DCERPC/TCP NCALRPC identifier for '%s' - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+ DEBUG(1,("Mapped to DCERPC/LRPC identifier %s\n", binding->endpoint));
+ }
+
+ status = dcerpc_pipe_open_pipe(p, binding->endpoint);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to open ncalrpc pipe '%s' - %s\n", binding->endpoint, nt_errstr(status)));
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+
+ (*p)->flags = binding->flags;
+
+ /* remember the binding string for possible secondary connections */
+ (*p)->binding_string = dcerpc_binding_string((*p), binding);
+
+ if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
+ status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
+ domain, username, password);
+ } else if (username && username[0]) {
+ status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
+ } else {
+ status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to uuid %s - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ dcerpc_pipe_close(*p);
+ *p = NULL;
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+
+ talloc_destroy(mem_ctx);
+ return status;
+}
+
+
+
+/* open a rpc connection to a rpc pipe on SMP using the binding
+ structure to determine the endpoint and options */
+static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream(struct dcerpc_pipe **p,
+ struct dcerpc_binding *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ NTSTATUS status;
+
+ if (!binding->endpoint) {
+ DEBUG(0, ("Path to unix socket not specified\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ status = dcerpc_pipe_open_unix_stream(p, binding->endpoint);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to open unix socket %s - %s\n",
+ binding->endpoint, nt_errstr(status)));
+ return status;
+ }
+
+ (*p)->flags = binding->flags;
+
+ /* remember the binding string for possible secondary connections */
+ (*p)->binding_string = dcerpc_binding_string((*p), binding);
+
+ if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
+ status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
+ domain, username, password);
+ } else if (username && username[0]) {
+ status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
+ } else {
+ status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to uuid %s - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ dcerpc_pipe_close(*p);
+ *p = NULL;
+ return status;
+ }
+
+ return status;
+}
+
+/* open a rpc connection to a rpc pipe on SMP using the binding
+ structure to determine the endpoint and options */
+static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **p,
+ struct dcerpc_binding *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ NTSTATUS status;
+ uint32_t port = 0;
+ TALLOC_CTX *mem_ctx = talloc_init("connect_ncacn_ip_tcp");
+
+ if (!binding->endpoint) {
+ status = dcerpc_epm_map_binding(mem_ctx, binding,
+ pipe_uuid, pipe_version);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to map DCERPC/TCP port for '%s' - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ return status;
+ }
+ DEBUG(1,("Mapped to DCERPC/TCP port %s\n", binding->endpoint));
+ }
+
+ port = atoi(binding->endpoint);
+
+ status = dcerpc_pipe_open_tcp(p, binding->host, port);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to connect to %s:%d - %s\n",
+ binding->host, port, nt_errstr(status)));
+ return status;
+ }
+
+ (*p)->flags = binding->flags;
+
+ /* remember the binding string for possible secondary connections */
+ (*p)->binding_string = dcerpc_binding_string((*p), binding);
+
+ if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
+ status = dcerpc_bind_auth_schannel(*p, pipe_uuid, pipe_version,
+ domain, username, password);
+ } else if (username && username[0]) {
+ status = dcerpc_bind_auth_ntlm(*p, pipe_uuid, pipe_version, domain, username, password);
+ } else {
+ status = dcerpc_bind_auth_none(*p, pipe_uuid, pipe_version);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to uuid %s - %s\n",
+ pipe_uuid, nt_errstr(status)));
+ dcerpc_pipe_close(*p);
+ *p = NULL;
+ return status;
+ }
+
+ return status;
+}
+
+
+/* open a rpc connection to a rpc pipe, using the specified
+ binding structure to determine the endpoint and options */
+NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **p,
+ struct dcerpc_binding *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+
+ switch (binding->transport) {
+ case NCACN_NP:
+ status = dcerpc_pipe_connect_ncacn_np(p, binding, pipe_uuid, pipe_version,
+ domain, username, password);
+ break;
+ case NCACN_IP_TCP:
+ status = dcerpc_pipe_connect_ncacn_ip_tcp(p, binding, pipe_uuid, pipe_version,
+ domain, username, password);
+ break;
+ case NCACN_UNIX_STREAM:
+ status = dcerpc_pipe_connect_ncacn_unix_stream(p, binding, pipe_uuid, pipe_version, domain, username, password);
+ break;
+ case NCALRPC:
+ status = dcerpc_pipe_connect_ncalrpc(p, binding, pipe_uuid, pipe_version, domain, username, password);
+ break;
+ default:
+ return NT_STATUS_NOT_SUPPORTED;
+ }
+
+ return status;
+}
+
+
+/* open a rpc connection to a rpc pipe, using the specified string
+ binding to determine the endpoint and options */
+NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **p,
+ const char *binding,
+ const char *pipe_uuid,
+ uint32_t pipe_version,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ struct dcerpc_binding b;
+ NTSTATUS status;
+ TALLOC_CTX *mem_ctx;
+
+ mem_ctx = talloc_init("dcerpc_pipe_connect");
+ if (!mem_ctx) return NT_STATUS_NO_MEMORY;
+
+ status = dcerpc_parse_binding(mem_ctx, binding, &b);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to parse dcerpc binding '%s'\n", binding));
+ talloc_destroy(mem_ctx);
+ return status;
+ }
+
+ DEBUG(3,("Using binding %s\n", dcerpc_binding_string(mem_ctx, &b)));
+
+ status = dcerpc_pipe_connect_b(p, &b, pipe_uuid, pipe_version, domain, username, password);
+
+ talloc_destroy(mem_ctx);
+ return status;
+}
+
+
/*
- find the number of calls defined by local IDL
+ create a secondary dcerpc connection from a primary connection
+
+ if the primary is a SMB connection then the secondary connection
+ will be on the same SMB connection, but use a new fnum
*/
-int idl_num_calls(const char *uuid, uint32 if_version)
+NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe **p2,
+ const char *pipe_name,
+ const char *pipe_uuid,
+ uint32_t pipe_version)
{
- int i;
- for (i=0;dcerpc_pipes[i];i++) {
- if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0 &&
- dcerpc_pipes[i]->if_version == if_version) {
- return dcerpc_pipes[i]->num_calls;
+ struct smbcli_tree *tree;
+ NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+ struct dcerpc_binding b;
+
+ switch (p->transport.transport) {
+ case NCACN_NP:
+ tree = dcerpc_smb_tree(p);
+ if (!tree) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ status = dcerpc_pipe_open_smb(p2, tree, pipe_name);
+ break;
+
+ case NCACN_IP_TCP:
+ status = dcerpc_parse_binding(p, p->binding_string, &b);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
}
+ b.flags &= ~DCERPC_AUTH_OPTIONS;
+ status = dcerpc_pipe_open_tcp(p2, b.host, atoi(b.endpoint));
+ break;
+
+ case NCALRPC:
+ status = dcerpc_parse_binding(p, p->binding_string, &b);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ b.flags &= ~DCERPC_AUTH_OPTIONS;
+ status = dcerpc_pipe_connect_ncalrpc(p2, &b, pipe_uuid, pipe_version, NULL, NULL, NULL);
+ break;
+
+ default:
+ return NT_STATUS_NOT_SUPPORTED;
}
- return -1;
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ talloc_steal(p, *p2);
+
+ (*p2)->flags = p->flags;
+
+ status = dcerpc_bind_auth_none(*p2, pipe_uuid, pipe_version);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ return NT_STATUS_OK;
}
+NTSTATUS dcerpc_generic_session_key(struct dcerpc_pipe *p,
+ DATA_BLOB *session_key)
+{
+ /* this took quite a few CPU cycles to find ... */
+ session_key->data = discard_const_p(unsigned char, "SystemLibraryDTC");
+ session_key->length = 16;
+ return NT_STATUS_OK;
+}
/*
- find a dcerpc interface by name
+ fetch the user session key - may be default (above) or the SMB session key
*/
-const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
+NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
+ DATA_BLOB *session_key)
{
+ return p->security_state.session_key(p, session_key);
+}
+
+
+/*
+ log a rpc packet in a format suitable for ndrdump. This is especially useful
+ for sealed packets, where ethereal cannot easily see the contents
+
+ this triggers on a debug level of >= 10
+*/
+void dcerpc_log_packet(const struct dcerpc_interface_table *ndr,
+ uint32_t opnum, uint32_t flags, DATA_BLOB *pkt)
+{
+ const int num_examples = 20;
int i;
- for (i=0;dcerpc_pipes[i];i++) {
- if (strcasecmp(dcerpc_pipes[i]->name, name) == 0) {
- return dcerpc_pipes[i];
+
+ if (DEBUGLEVEL < 10) return;
+
+ for (i=0;i<num_examples;i++) {
+ char *name=NULL;
+ asprintf(&name, "%s/rpclog/%s-%u.%d.%s",
+ lp_lockdir(), ndr->name, opnum, i,
+ (flags&NDR_IN)?"in":"out");
+ if (name == NULL) {
+ return;
}
+ if (!file_exist(name, NULL)) {
+ if (file_save(name, pkt->data, pkt->length)) {
+ DEBUG(10,("Logged rpc packet to %s\n", name));
+ }
+ free(name);
+ break;
+ }
+ free(name);
}
- return NULL;
}
+
git.samba.org / samba.git / blobdiff