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Code

Split binding structure handling out into a separate file.

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For easier synchronisation with Samba 3.
(This used to be commit b9cac469f3c869a26f415a6c551cf6e8fbb06ed6)
This commit is contained in:
Jelmer Vernooij 2008-04-15 18:03:09 +02:00
parent 2ddd23a875
commit b708a3d1e7
3 changed files with 725 additions and 695 deletions
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1
source4/librpc/config.mk
View File

@ -590,6 +590,7 @@ dcerpc_VERSION = 0.0.1
dcerpc_SOVERSION = 0
dcerpc_OBJ_FILES = $(addprefix librpc/rpc/, dcerpc.o dcerpc_auth.o dcerpc_schannel.o dcerpc_util.o \
binding.o \
dcerpc_error.o dcerpc_smb.o dcerpc_smb2.o dcerpc_sock.o dcerpc_connect.o dcerpc_secondary.o)

724
source4/librpc/rpc/binding.c Normal file
View File

@ -0,0 +1,724 @@
/*
Unix SMB/CIFS implementation.
dcerpc utility functions
Copyright (C) Andrew Tridgell 2003
Copyright (C) Jelmer Vernooij 2004
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
Copyright (C) Rafal Szczesniak 2006
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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/events/events.h"
#include "librpc/gen_ndr/ndr_epmapper_c.h"
#include "librpc/gen_ndr/ndr_dcerpc.h"
#include "librpc/gen_ndr/ndr_misc.h"
#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, 3,
/* I guess some MS programmer confused the identifier for
* EPM_PROTOCOL_UUID (0x0D or 13) with the one for
* EPM_PROTOCOL_SPX (0x13) here. -- jelmer*/
{ EPM_PROTOCOL_NCACN, EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_UUID },
},
};
static const struct {
const char *name;
uint32_t flag;
} ncacn_options[] = {
{"sign", DCERPC_SIGN},
{"seal", DCERPC_SEAL},
{"connect", DCERPC_CONNECT},
{"spnego", DCERPC_AUTH_SPNEGO},
{"ntlm", DCERPC_AUTH_NTLM},
{"krb5", DCERPC_AUTH_KRB5},
{"validate", DCERPC_DEBUG_VALIDATE_BOTH},
{"print", DCERPC_DEBUG_PRINT_BOTH},
{"padcheck", DCERPC_DEBUG_PAD_CHECK},
{"bigendian", DCERPC_PUSH_BIGENDIAN},
{"smb2", DCERPC_SMB2}
};
const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor)
{
struct ndr_syntax_id syntax;
NTSTATUS status;
switch(epm_floor->lhs.protocol) {
case EPM_PROTOCOL_UUID:
status = dcerpc_floor_get_lhs_data(epm_floor, &syntax);
if (NT_STATUS_IS_OK(status)) {
/* lhs is used: UUID */
char *uuidstr;
if (GUID_equal(&syntax.uuid, &ndr_transfer_syntax.uuid)) {
return "NDR";
}
if (GUID_equal(&syntax.uuid, &ndr64_transfer_syntax.uuid)) {
return "NDR64";
}
uuidstr = GUID_string(mem_ctx, &syntax.uuid);
return talloc_asprintf(mem_ctx, " uuid %s/0x%02x", uuidstr, syntax.if_version);
} else { /* IPX */
return talloc_asprintf(mem_ctx, "IPX:%s",
data_blob_hex_string(mem_ctx, &epm_floor->rhs.uuid.unknown));
}
case EPM_PROTOCOL_NCACN:
return "RPC-C";
case EPM_PROTOCOL_NCADG:
return "RPC";
case EPM_PROTOCOL_NCALRPC:
return "NCALRPC";
case EPM_PROTOCOL_DNET_NSP:
return "DNET/NSP";
case EPM_PROTOCOL_IP:
return talloc_asprintf(mem_ctx, "IP:%s", epm_floor->rhs.ip.ipaddr);
case EPM_PROTOCOL_PIPE:
return talloc_asprintf(mem_ctx, "PIPE:%s", epm_floor->rhs.pipe.path);
case EPM_PROTOCOL_SMB:
return talloc_asprintf(mem_ctx, "SMB:%s", epm_floor->rhs.smb.unc);
case EPM_PROTOCOL_UNIX_DS:
return talloc_asprintf(mem_ctx, "Unix:%s", epm_floor->rhs.unix_ds.path);
case EPM_PROTOCOL_NETBIOS:
return talloc_asprintf(mem_ctx, "NetBIOS:%s", epm_floor->rhs.netbios.name);
case EPM_PROTOCOL_NETBEUI:
return "NETBeui";
case EPM_PROTOCOL_SPX:
return "SPX";
case EPM_PROTOCOL_NB_IPX:
return "NB_IPX";
case EPM_PROTOCOL_HTTP:
return talloc_asprintf(mem_ctx, "HTTP:%d", epm_floor->rhs.http.port);
case EPM_PROTOCOL_TCP:
return talloc_asprintf(mem_ctx, "TCP:%d", epm_floor->rhs.tcp.port);
case EPM_PROTOCOL_UDP:
return talloc_asprintf(mem_ctx, "UDP:%d", epm_floor->rhs.udp.port);
default:
return talloc_asprintf(mem_ctx, "UNK(%02x):", epm_floor->lhs.protocol);
}
}
/*
form a binding string from a binding structure
*/
_PUBLIC_ char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b)
{
char *s = talloc_strdup(mem_ctx, "");
int i;
const char *t_name = NULL;
if (b->transport != NCA_UNKNOWN) {
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.uuid)) {
s = talloc_asprintf(s, "%s@",
GUID_string(mem_ctx, &b->object.uuid));
}
if (t_name != NULL) {
s = talloc_asprintf_append_buffer(s, "%s:", t_name);
if (s == NULL) {
return NULL;
}
}
if (b->host) {
s = talloc_asprintf_append_buffer(s, "%s", b->host);
}
if (!b->endpoint && !b->options && !b->flags) {
return s;
}
s = talloc_asprintf_append_buffer(s, "[");
if (b->endpoint) {
s = talloc_asprintf_append_buffer(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_buffer(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_buffer(s, ",%s", ncacn_options[i].name);
if (!s) return NULL;
}
}
s = talloc_asprintf_append_buffer(s, "]");
return s;
}
/*
parse a binding string into a dcerpc_binding structure
*/
_PUBLIC_ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out)
{
struct dcerpc_binding *b;
char *options;
char *p;
int i, j, comma_count;
b = talloc(mem_ctx, struct dcerpc_binding);
if (!b) {
return NT_STATUS_NO_MEMORY;
}
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.uuid);
if (NT_STATUS_IS_ERR(status)) {
DEBUG(0, ("Failed parsing UUID\n"));
return status;
}
s = p + 1;
} else {
ZERO_STRUCT(b->object);
}
b->object.if_version = 0;
p = strchr(s, ':');
if (p == NULL) {
b->transport = NCA_UNKNOWN;
} else {
char *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;
}
talloc_free(type);
s = p+1;
}
p = strchr(s, '[');
if (p) {
b->host = talloc_strndup(b, 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(b, s);
options = NULL;
}
if (!b->host) {
return NT_STATUS_NO_MEMORY;
}
b->target_hostname = b->host;
b->options = NULL;
b->flags = 0;
b->assoc_group_id = 0;
b->endpoint = NULL;
if (!options) {
*b_out = b;
return NT_STATUS_OK;
}
comma_count = count_chars(options, ',');
b->options = talloc_array(b, 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(b, 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;
*b_out = b;
return NT_STATUS_OK;
}
_PUBLIC_ NTSTATUS dcerpc_floor_get_lhs_data(struct epm_floor *epm_floor, struct ndr_syntax_id *syntax)
{
TALLOC_CTX *mem_ctx = talloc_init("floor_get_lhs_data");
struct ndr_pull *ndr = ndr_pull_init_blob(&epm_floor->lhs.lhs_data, mem_ctx, NULL);
enum ndr_err_code ndr_err;
uint16_t if_version=0;
ndr->flags |= LIBNDR_FLAG_NOALIGN;
ndr_err = ndr_pull_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, &syntax->uuid);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(mem_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
ndr_err = ndr_pull_uint16(ndr, NDR_SCALARS, &if_version);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(mem_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
syntax->if_version = if_version;
talloc_free(mem_ctx);
return NT_STATUS_OK;
}
static DATA_BLOB dcerpc_floor_pack_lhs_data(TALLOC_CTX *mem_ctx, const struct ndr_syntax_id *syntax)
{
struct ndr_push *ndr = ndr_push_init_ctx(mem_ctx, NULL);
ndr->flags |= LIBNDR_FLAG_NOALIGN;
ndr_push_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, &syntax->uuid);
ndr_push_uint16(ndr, NDR_SCALARS, syntax->if_version);
return ndr_push_blob(ndr);
}
const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor)
{
switch (epm_floor->lhs.protocol) {
case EPM_PROTOCOL_TCP:
if (epm_floor->rhs.tcp.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.tcp.port);
case EPM_PROTOCOL_UDP:
if (epm_floor->rhs.udp.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.udp.port);
case EPM_PROTOCOL_HTTP:
if (epm_floor->rhs.http.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.http.port);
case EPM_PROTOCOL_IP:
return talloc_strdup(mem_ctx, epm_floor->rhs.ip.ipaddr);
case EPM_PROTOCOL_NCACN:
return NULL;
case EPM_PROTOCOL_NCADG:
return NULL;
case EPM_PROTOCOL_SMB:
if (strlen(epm_floor->rhs.smb.unc) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.smb.unc);
case EPM_PROTOCOL_PIPE:
if (strlen(epm_floor->rhs.pipe.path) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.pipe.path);
case EPM_PROTOCOL_NETBIOS:
if (strlen(epm_floor->rhs.netbios.name) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.netbios.name);
case EPM_PROTOCOL_NCALRPC:
return NULL;
case EPM_PROTOCOL_VINES_SPP:
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.vines_spp.port);
case EPM_PROTOCOL_VINES_IPC:
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.vines_ipc.port);
case EPM_PROTOCOL_STREETTALK:
return talloc_strdup(mem_ctx, epm_floor->rhs.streettalk.streettalk);
case EPM_PROTOCOL_UNIX_DS:
if (strlen(epm_floor->rhs.unix_ds.path) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.unix_ds.path);
case EPM_PROTOCOL_NULL:
return NULL;
default:
DEBUG(0,("Unsupported lhs protocol %d\n", epm_floor->lhs.protocol));
break;
}
return NULL;
}
static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx,
struct epm_floor *epm_floor,
const char *data)
{
switch (epm_floor->lhs.protocol) {
case EPM_PROTOCOL_TCP:
epm_floor->rhs.tcp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_UDP:
epm_floor->rhs.udp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_HTTP:
epm_floor->rhs.http.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_IP:
epm_floor->rhs.ip.ipaddr = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.ip.ipaddr);
return NT_STATUS_OK;
case EPM_PROTOCOL_NCACN:
epm_floor->rhs.ncacn.minor_version = 0;
return NT_STATUS_OK;
case EPM_PROTOCOL_NCADG:
epm_floor->rhs.ncadg.minor_version = 0;
return NT_STATUS_OK;
case EPM_PROTOCOL_SMB:
epm_floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.smb.unc);
return NT_STATUS_OK;
case EPM_PROTOCOL_PIPE:
epm_floor->rhs.pipe.path = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.pipe.path);
return NT_STATUS_OK;
case EPM_PROTOCOL_NETBIOS:
epm_floor->rhs.netbios.name = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.netbios.name);
return NT_STATUS_OK;
case EPM_PROTOCOL_NCALRPC:
return NT_STATUS_OK;
case EPM_PROTOCOL_VINES_SPP:
epm_floor->rhs.vines_spp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_VINES_IPC:
epm_floor->rhs.vines_ipc.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_STREETTALK:
epm_floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.streettalk.streettalk);
return NT_STATUS_OK;
case EPM_PROTOCOL_UNIX_DS:
epm_floor->rhs.unix_ds.path = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.unix_ds.path);
return NT_STATUS_OK;
case EPM_PROTOCOL_NULL:
return NT_STATUS_OK;
default:
DEBUG(0,("Unsupported lhs protocol %d\n", epm_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 (unsigned int)-1;
}
_PUBLIC_ 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 (unsigned int)-1;
}
_PUBLIC_ NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx,
struct epm_tower *tower,
struct dcerpc_binding **b_out)
{
NTSTATUS status;
struct dcerpc_binding *binding;
binding = talloc(mem_ctx, struct dcerpc_binding);
NT_STATUS_HAVE_NO_MEMORY(binding);
ZERO_STRUCT(binding->object);
binding->options = NULL;
binding->host = NULL;
binding->target_hostname = NULL;
binding->flags = 0;
binding->assoc_group_id = 0;
binding->transport = dcerpc_transport_by_tower(tower);
if (binding->transport == (unsigned int)-1) {
return NT_STATUS_NOT_SUPPORTED;
}
if (tower->num_floors < 1) {
return NT_STATUS_OK;
}
/* Set object uuid */
status = dcerpc_floor_get_lhs_data(&tower->floors[0], &binding->object);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Error pulling object uuid and version: %s", nt_errstr(status)));
return status;
}
/* 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]);
NT_STATUS_HAVE_NO_MEMORY(binding->host);
binding->target_hostname = binding->host;
}
*b_out = binding;
return NT_STATUS_OK;
}
_PUBLIC_ 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(mem_ctx, struct epm_floor, tower->num_floors);
/* Floor 0 */
tower->floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
tower->floors[0].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &binding->object);
tower->floors[0].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
/* Floor 1 */
tower->floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
tower->floors[1].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx,
&ndr_transfer_syntax);
tower->floors[1].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
/* 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.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) {
if (is_ipaddress(binding->host)) {
status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4],
binding->host);
} else {
/* note that we don't attempt to resolve the
name here - when we get a hostname here we
are in the client code, and want to put in
a wildcard all-zeros IP for the server to
fill in */
status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4],
"0.0.0.0");
}
if (NT_STATUS_IS_ERR(status)) {
return status;
}
}
return NT_STATUS_OK;
}

695
source4/librpc/rpc/dcerpc_util.c
View File

@ -97,701 +97,6 @@ NTSTATUS ncacn_push_auth(DATA_BLOB *blob, TALLOC_CTX *mem_ctx,
return NT_STATUS_OK;
}
#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, 3,
/* I guess some MS programmer confused the identifier for
* EPM_PROTOCOL_UUID (0x0D or 13) with the one for
* EPM_PROTOCOL_SPX (0x13) here. -- jelmer*/
{ EPM_PROTOCOL_NCACN, EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_UUID },
},
};
static const struct {
const char *name;
uint32_t flag;
} ncacn_options[] = {
{"sign", DCERPC_SIGN},
{"seal", DCERPC_SEAL},
{"connect", DCERPC_CONNECT},
{"spnego", DCERPC_AUTH_SPNEGO},
{"ntlm", DCERPC_AUTH_NTLM},
{"krb5", DCERPC_AUTH_KRB5},
{"validate", DCERPC_DEBUG_VALIDATE_BOTH},
{"print", DCERPC_DEBUG_PRINT_BOTH},
{"padcheck", DCERPC_DEBUG_PAD_CHECK},
{"bigendian", DCERPC_PUSH_BIGENDIAN},
{"smb2", DCERPC_SMB2}
};
const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor)
{
struct ndr_syntax_id syntax;
NTSTATUS status;
switch(epm_floor->lhs.protocol) {
case EPM_PROTOCOL_UUID:
status = dcerpc_floor_get_lhs_data(epm_floor, &syntax);
if (NT_STATUS_IS_OK(status)) {
/* lhs is used: UUID */
char *uuidstr;
if (GUID_equal(&syntax.uuid, &ndr_transfer_syntax.uuid)) {
return "NDR";
}
if (GUID_equal(&syntax.uuid, &ndr64_transfer_syntax.uuid)) {
return "NDR64";
}
uuidstr = GUID_string(mem_ctx, &syntax.uuid);
return talloc_asprintf(mem_ctx, " uuid %s/0x%02x", uuidstr, syntax.if_version);
} else { /* IPX */
return talloc_asprintf(mem_ctx, "IPX:%s",
data_blob_hex_string(mem_ctx, &epm_floor->rhs.uuid.unknown));
}
case EPM_PROTOCOL_NCACN:
return "RPC-C";
case EPM_PROTOCOL_NCADG:
return "RPC";
case EPM_PROTOCOL_NCALRPC:
return "NCALRPC";
case EPM_PROTOCOL_DNET_NSP:
return "DNET/NSP";
case EPM_PROTOCOL_IP:
return talloc_asprintf(mem_ctx, "IP:%s", epm_floor->rhs.ip.ipaddr);
case EPM_PROTOCOL_PIPE:
return talloc_asprintf(mem_ctx, "PIPE:%s", epm_floor->rhs.pipe.path);
case EPM_PROTOCOL_SMB:
return talloc_asprintf(mem_ctx, "SMB:%s", epm_floor->rhs.smb.unc);
case EPM_PROTOCOL_UNIX_DS:
return talloc_asprintf(mem_ctx, "Unix:%s", epm_floor->rhs.unix_ds.path);
case EPM_PROTOCOL_NETBIOS:
return talloc_asprintf(mem_ctx, "NetBIOS:%s", epm_floor->rhs.netbios.name);
case EPM_PROTOCOL_NETBEUI:
return "NETBeui";
case EPM_PROTOCOL_SPX:
return "SPX";
case EPM_PROTOCOL_NB_IPX:
return "NB_IPX";
case EPM_PROTOCOL_HTTP:
return talloc_asprintf(mem_ctx, "HTTP:%d", epm_floor->rhs.http.port);
case EPM_PROTOCOL_TCP:
return talloc_asprintf(mem_ctx, "TCP:%d", epm_floor->rhs.tcp.port);
case EPM_PROTOCOL_UDP:
return talloc_asprintf(mem_ctx, "UDP:%d", epm_floor->rhs.udp.port);
default:
return talloc_asprintf(mem_ctx, "UNK(%02x):", epm_floor->lhs.protocol);
}
}
/*
form a binding string from a binding structure
*/
_PUBLIC_ char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b)
{
char *s = talloc_strdup(mem_ctx, "");
int i;
const char *t_name = NULL;
if (b->transport != NCA_UNKNOWN) {
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.uuid)) {
s = talloc_asprintf(s, "%s@",
GUID_string(mem_ctx, &b->object.uuid));
}
if (t_name != NULL) {
s = talloc_asprintf_append_buffer(s, "%s:", t_name);
if (s == NULL) {
return NULL;
}
}
if (b->host) {
s = talloc_asprintf_append_buffer(s, "%s", b->host);
}
if (!b->endpoint && !b->options && !b->flags) {
return s;
}
s = talloc_asprintf_append_buffer(s, "[");
if (b->endpoint) {
s = talloc_asprintf_append_buffer(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_buffer(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_buffer(s, ",%s", ncacn_options[i].name);
if (!s) return NULL;
}
}
s = talloc_asprintf_append_buffer(s, "]");
return s;
}
/*
parse a binding string into a dcerpc_binding structure
*/
_PUBLIC_ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out)
{
struct dcerpc_binding *b;
char *options;
char *p;
int i, j, comma_count;
b = talloc(mem_ctx, struct dcerpc_binding);
if (!b) {
return NT_STATUS_NO_MEMORY;
}
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.uuid);
if (NT_STATUS_IS_ERR(status)) {
DEBUG(0, ("Failed parsing UUID\n"));
return status;
}
s = p + 1;
} else {
ZERO_STRUCT(b->object);
}
b->object.if_version = 0;
p = strchr(s, ':');
if (p == NULL) {
b->transport = NCA_UNKNOWN;
} else {
char *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;
}
talloc_free(type);
s = p+1;
}
p = strchr(s, '[');
if (p) {
b->host = talloc_strndup(b, 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(b, s);
options = NULL;
}
if (!b->host) {
return NT_STATUS_NO_MEMORY;
}
b->target_hostname = b->host;
b->options = NULL;
b->flags = 0;
b->assoc_group_id = 0;
b->endpoint = NULL;
if (!options) {
*b_out = b;
return NT_STATUS_OK;
}
comma_count = count_chars(options, ',');
b->options = talloc_array(b, 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(b, 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;
*b_out = b;
return NT_STATUS_OK;
}
_PUBLIC_ NTSTATUS dcerpc_floor_get_lhs_data(struct epm_floor *epm_floor, struct ndr_syntax_id *syntax)
{
TALLOC_CTX *mem_ctx = talloc_init("floor_get_lhs_data");
struct ndr_pull *ndr = ndr_pull_init_blob(&epm_floor->lhs.lhs_data, mem_ctx, NULL);
enum ndr_err_code ndr_err;
uint16_t if_version=0;
ndr->flags |= LIBNDR_FLAG_NOALIGN;
ndr_err = ndr_pull_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, &syntax->uuid);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(mem_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
ndr_err = ndr_pull_uint16(ndr, NDR_SCALARS, &if_version);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(mem_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
syntax->if_version = if_version;
talloc_free(mem_ctx);
return NT_STATUS_OK;
}
static DATA_BLOB dcerpc_floor_pack_lhs_data(TALLOC_CTX *mem_ctx, const struct ndr_syntax_id *syntax)
{
struct ndr_push *ndr = ndr_push_init_ctx(mem_ctx, NULL);
ndr->flags |= LIBNDR_FLAG_NOALIGN;
ndr_push_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, &syntax->uuid);
ndr_push_uint16(ndr, NDR_SCALARS, syntax->if_version);
return ndr_push_blob(ndr);
}
const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor)
{
switch (epm_floor->lhs.protocol) {
case EPM_PROTOCOL_TCP:
if (epm_floor->rhs.tcp.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.tcp.port);
case EPM_PROTOCOL_UDP:
if (epm_floor->rhs.udp.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.udp.port);
case EPM_PROTOCOL_HTTP:
if (epm_floor->rhs.http.port == 0) return NULL;
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.http.port);
case EPM_PROTOCOL_IP:
return talloc_strdup(mem_ctx, epm_floor->rhs.ip.ipaddr);
case EPM_PROTOCOL_NCACN:
return NULL;
case EPM_PROTOCOL_NCADG:
return NULL;
case EPM_PROTOCOL_SMB:
if (strlen(epm_floor->rhs.smb.unc) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.smb.unc);
case EPM_PROTOCOL_PIPE:
if (strlen(epm_floor->rhs.pipe.path) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.pipe.path);
case EPM_PROTOCOL_NETBIOS:
if (strlen(epm_floor->rhs.netbios.name) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.netbios.name);
case EPM_PROTOCOL_NCALRPC:
return NULL;
case EPM_PROTOCOL_VINES_SPP:
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.vines_spp.port);
case EPM_PROTOCOL_VINES_IPC:
return talloc_asprintf(mem_ctx, "%d", epm_floor->rhs.vines_ipc.port);
case EPM_PROTOCOL_STREETTALK:
return talloc_strdup(mem_ctx, epm_floor->rhs.streettalk.streettalk);
case EPM_PROTOCOL_UNIX_DS:
if (strlen(epm_floor->rhs.unix_ds.path) == 0) return NULL;
return talloc_strdup(mem_ctx, epm_floor->rhs.unix_ds.path);
case EPM_PROTOCOL_NULL:
return NULL;
default:
DEBUG(0,("Unsupported lhs protocol %d\n", epm_floor->lhs.protocol));
break;
}
return NULL;
}
static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx,
struct epm_floor *epm_floor,
const char *data)
{
switch (epm_floor->lhs.protocol) {
case EPM_PROTOCOL_TCP:
epm_floor->rhs.tcp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_UDP:
epm_floor->rhs.udp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_HTTP:
epm_floor->rhs.http.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_IP:
epm_floor->rhs.ip.ipaddr = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.ip.ipaddr);
return NT_STATUS_OK;
case EPM_PROTOCOL_NCACN:
epm_floor->rhs.ncacn.minor_version = 0;
return NT_STATUS_OK;
case EPM_PROTOCOL_NCADG:
epm_floor->rhs.ncadg.minor_version = 0;
return NT_STATUS_OK;
case EPM_PROTOCOL_SMB:
epm_floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.smb.unc);
return NT_STATUS_OK;
case EPM_PROTOCOL_PIPE:
epm_floor->rhs.pipe.path = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.pipe.path);
return NT_STATUS_OK;
case EPM_PROTOCOL_NETBIOS:
epm_floor->rhs.netbios.name = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.netbios.name);
return NT_STATUS_OK;
case EPM_PROTOCOL_NCALRPC:
return NT_STATUS_OK;
case EPM_PROTOCOL_VINES_SPP:
epm_floor->rhs.vines_spp.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_VINES_IPC:
epm_floor->rhs.vines_ipc.port = atoi(data);
return NT_STATUS_OK;
case EPM_PROTOCOL_STREETTALK:
epm_floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.streettalk.streettalk);
return NT_STATUS_OK;
case EPM_PROTOCOL_UNIX_DS:
epm_floor->rhs.unix_ds.path = talloc_strdup(mem_ctx, data);
NT_STATUS_HAVE_NO_MEMORY(epm_floor->rhs.unix_ds.path);
return NT_STATUS_OK;
case EPM_PROTOCOL_NULL:
return NT_STATUS_OK;
default:
DEBUG(0,("Unsupported lhs protocol %d\n", epm_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 (unsigned int)-1;
}
_PUBLIC_ 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 (unsigned int)-1;
}
_PUBLIC_ NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx,
struct epm_tower *tower,
struct dcerpc_binding **b_out)
{
NTSTATUS status;
struct dcerpc_binding *binding;
binding = talloc(mem_ctx, struct dcerpc_binding);
NT_STATUS_HAVE_NO_MEMORY(binding);
ZERO_STRUCT(binding->object);
binding->options = NULL;
binding->host = NULL;
binding->target_hostname = NULL;
binding->flags = 0;
binding->assoc_group_id = 0;
binding->transport = dcerpc_transport_by_tower(tower);
if (binding->transport == (unsigned int)-1) {
return NT_STATUS_NOT_SUPPORTED;
}
if (tower->num_floors < 1) {
return NT_STATUS_OK;
}
/* Set object uuid */
status = dcerpc_floor_get_lhs_data(&tower->floors[0], &binding->object);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Error pulling object uuid and version: %s", nt_errstr(status)));
return status;
}
/* 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]);
NT_STATUS_HAVE_NO_MEMORY(binding->host);
binding->target_hostname = binding->host;
}
*b_out = binding;
return NT_STATUS_OK;
}
_PUBLIC_ 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(mem_ctx, struct epm_floor, tower->num_floors);
/* Floor 0 */
tower->floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
tower->floors[0].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &binding->object);
tower->floors[0].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
/* Floor 1 */
tower->floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
tower->floors[1].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx,
&ndr_transfer_syntax);
tower->floors[1].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
/* 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.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) {
if (is_ipaddress(binding->host)) {
status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4],
binding->host);
} else {
/* note that we don't attempt to resolve the
name here - when we get a hostname here we
are in the client code, and want to put in
a wildcard all-zeros IP for the server to
fill in */
status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4],
"0.0.0.0");
}
if (NT_STATUS_IS_ERR(status)) {
return status;
}
}
return NT_STATUS_OK;
}
struct epm_map_binding_state {
struct dcerpc_binding *binding;