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Diffstat (limited to 'source4/librpc/rpc/binding.c')
| -rw-r--r-- | source4/librpc/rpc/binding.c | 724 |
1 files changed, 724 insertions, 0 deletions
diff --git a/source4/librpc/rpc/binding.c b/source4/librpc/rpc/binding.c new file mode 100644 index 0000000000..ae88dce1be --- /dev/null +++ b/source4/librpc/rpc/binding.c @@ -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; +} |