diff options
Diffstat (limited to 'source4/lib/com/dcom')
| -rw-r--r-- | source4/lib/com/dcom/dcom.h | 85 | ||||
| -rw-r--r-- | source4/lib/com/dcom/main.c | 710 | ||||
| -rw-r--r-- | source4/lib/com/dcom/tables.c | 92 |
3 files changed, 887 insertions, 0 deletions
diff --git a/source4/lib/com/dcom/dcom.h b/source4/lib/com/dcom/dcom.h new file mode 100644 index 0000000000..56d6eac93c --- /dev/null +++ b/source4/lib/com/dcom/dcom.h @@ -0,0 +1,85 @@ +/* + Unix SMB/CIFS implementation. + COM standard objects + Copyright (C) Jelmer Vernooij 2004-2005. + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef _DCOM_H /* _DCOM_H */ +#define _DCOM_H + +struct cli_credentials; +struct dcerpc_pipe; + +#include "lib/com/com.h" +#include "librpc/gen_ndr/orpc.h" + +struct dcom_client_context { + struct dcom_server_credentials { + const char *server; + struct cli_credentials *credentials; + struct dcom_server_credentials *prev, *next; + } *credentials; + struct dcom_object_exporter { + uint64_t oxid; + char *host; + struct IRemUnknown *rem_unknown; + struct DUALSTRINGARRAY *bindings; + struct dcerpc_pipe *pipe; + struct dcom_object_exporter *prev, *next; + } *object_exporters; +}; + +typedef enum ndr_err_code (*marshal_fn)(TALLOC_CTX *mem_ctx, struct IUnknown *pv, struct OBJREF *o); +typedef enum ndr_err_code (*unmarshal_fn)(TALLOC_CTX *mem_ctx, struct OBJREF *o, struct IUnknown **pv); + + +struct dcom_client_context *dcom_client_init(struct com_context *ctx, struct cli_credentials *credentials); +struct dcom_object_exporter *object_exporter_by_oxid(struct com_context *ctx, uint64_t oxid); +struct dcom_object_exporter *object_exporter_by_ip(struct com_context *ctx, struct IUnknown *ip); +WERROR dcom_create_object(struct com_context *ctx, struct GUID *clsid, const char *server, int num_ifaces, struct GUID *iid, struct IUnknown ***ip, WERROR *results); +WERROR dcom_get_class_object(struct com_context *ctx, struct GUID *clsid, const char *server, struct GUID *iid, struct IUnknown **ip); +NTSTATUS dcom_get_pipe(struct IUnknown *iface, struct dcerpc_pipe **pp); +NTSTATUS dcom_OBJREF_from_IUnknown(struct OBJREF *o, struct IUnknown *p); +NTSTATUS dcom_IUnknown_from_OBJREF(TALLOC_CTX *mem_ctx, struct com_context *ctx, struct IUnknown **_p, struct OBJREF *o); +uint64_t dcom_get_current_oxid(void); +void dcom_add_server_credentials(struct com_context *ctx, const char *server, struct cli_credentials *credentials); +WERROR dcom_query_interface(struct IUnknown *d, uint32_t cRefs, uint16_t cIids, struct GUID *iids, struct IUnknown **ip, WERROR *results); + +#include "librpc/gen_ndr/com_dcom.h" + +NTSTATUS dcom_register_proxy(struct IUnknown_vtable *proxy_vtable); +struct IUnknown_vtable *dcom_proxy_vtable_by_iid(struct GUID *iid); +NTSTATUS dcom_register_marshal(struct GUID *clsid, marshal_fn marshal, unmarshal_fn unmarshal); + +#include "libcli/composite/composite.h" +void dcom_release_continue(struct composite_context *cr); +#define IUnknown_ipid(d) ((d)->obj.u_objref.u_standard.std.ipid) +struct composite_context *dcom_release_send(struct IUnknown *d, TALLOC_CTX *mem_ctx); +marshal_fn dcom_marshal_by_clsid(struct GUID *clsid); +unmarshal_fn dcom_unmarshal_by_clsid(struct GUID *clsid); + +struct dcom_proxy_async_call_state { + struct IUnknown *d; + const struct ndr_interface_table *table; + uint32_t opnum; + void (*continuation)(struct rpc_request *); + TALLOC_CTX *mem_ctx; + void *r; +}; + + +#endif /* _DCOM_H */ diff --git a/source4/lib/com/dcom/main.c b/source4/lib/com/dcom/main.c new file mode 100644 index 0000000000..695bfa7f98 --- /dev/null +++ b/source4/lib/com/dcom/main.c @@ -0,0 +1,710 @@ +/* + Unix SMB/CIFS implementation. + Main DCOM functionality + Copyright (C) 2004 Jelmer Vernooij <jelmer@samba.org> + Copyright (C) 2006 Andrzej Hajda <andrzej.hajda@wp.pl> + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "system/filesys.h" +#include "librpc/gen_ndr/epmapper.h" +#include "librpc/gen_ndr/ndr_remact_c.h" +#include "librpc/gen_ndr/com_dcom.h" +#include "librpc/gen_ndr/dcom.h" +#include "librpc/rpc/dcerpc.h" +#include "lib/com/dcom/dcom.h" +#include "librpc/ndr/ndr_table.h" +#include "../lib/util/dlinklist.h" +#include "auth/credentials/credentials.h" +#include "libcli/composite/composite.h" + +#define DCOM_NEGOTIATED_PROTOCOLS { EPM_PROTOCOL_TCP, EPM_PROTOCOL_SMB, EPM_PROTOCOL_NCALRPC } + +static NTSTATUS dcerpc_binding_from_STRINGBINDING(TALLOC_CTX *mem_ctx, struct dcerpc_binding **b_out, struct STRINGBINDING *bd) +{ + char *host, *endpoint; + struct dcerpc_binding *b; + + b = talloc_zero(mem_ctx, struct dcerpc_binding); + if (!b) { + return NT_STATUS_NO_MEMORY; + } + + b->transport = dcerpc_transport_by_endpoint_protocol(bd->wTowerId); + + if (b->transport == -1) { + DEBUG(1, ("Can't find transport match endpoint protocol %d\n", bd->wTowerId)); + talloc_free(b); + return NT_STATUS_NOT_SUPPORTED; + } + + host = talloc_strdup(b, bd->NetworkAddr); + endpoint = strchr(host, '['); + + if (endpoint) { + *endpoint = '\0'; + endpoint++; + + endpoint[strlen(endpoint)-1] = '\0'; + } + + b->host = host; + b->endpoint = talloc_strdup(b, endpoint); + + *b_out = b; + return NT_STATUS_OK; +} + +struct cli_credentials *dcom_get_server_credentials(struct com_context *ctx, const char *server) +{ + struct dcom_server_credentials *c; + struct cli_credentials *d; + + d = NULL; + for (c = ctx->dcom->credentials; c; c = c->next) { + if (c->server == NULL) { + d = c->credentials; + continue; + } + if (server && !strcmp(c->server, server)) return c->credentials; + } + return d; +} + +/** + * Register credentials for a specific server. + * + * @param ctx COM context + * @param server Name of server, can be NULL + * @param credentials Credentials object + */ +void dcom_add_server_credentials(struct com_context *ctx, const char *server, + struct cli_credentials *credentials) +{ + struct dcom_server_credentials *c; + + /* FIXME: Don't use talloc_find_parent_bytype */ + for (c = ctx->dcom->credentials; c; c = c->next) { + if ((server == NULL && c->server == NULL) || + (server != NULL && c->server != NULL && + !strcmp(c->server, server))) { + if (c->credentials && c->credentials != credentials) { + talloc_unlink(c, c->credentials); + c->credentials = credentials; + if (talloc_find_parent_bytype(c->credentials, struct dcom_server_credentials)) + (void)talloc_reference(c, c->credentials); + else + talloc_steal(c, c->credentials); + } + + return; + } + } + + c = talloc(ctx->event_ctx, struct dcom_server_credentials); + c->server = talloc_strdup(c, server); + c->credentials = credentials; + if (talloc_find_parent_bytype(c->credentials, struct dcom_server_credentials)) + (void)talloc_reference(c, c->credentials); + else + talloc_steal(c, c->credentials); + + DLIST_ADD(ctx->dcom->credentials, c); +} + +void dcom_update_credentials_for_aliases(struct com_context *ctx, + const char *server, + struct DUALSTRINGARRAY *pds) +{ + struct cli_credentials *cc; + struct dcerpc_binding *b; + uint32_t i; + NTSTATUS status; + + cc = dcom_get_server_credentials(ctx, server); + for (i = 0; pds->stringbindings[i]; ++i) { + if (pds->stringbindings[i]->wTowerId != EPM_PROTOCOL_TCP) + continue; + status = dcerpc_binding_from_STRINGBINDING(ctx, &b, pds->stringbindings[i]); + if (!NT_STATUS_IS_OK(status)) + continue; + dcom_add_server_credentials(ctx, b->host, cc); + talloc_free(b); + } +} + +struct dcom_client_context *dcom_client_init(struct com_context *ctx, struct cli_credentials *credentials) +{ + ctx->dcom = talloc_zero(ctx, struct dcom_client_context); + if (!credentials) { + credentials = cli_credentials_init(ctx); + cli_credentials_set_conf(credentials, ctx->lp_ctx); + cli_credentials_parse_string(credentials, "%", CRED_SPECIFIED); + } + dcom_add_server_credentials(ctx, NULL, credentials); + return ctx->dcom; +} + +static NTSTATUS dcom_connect_host(struct com_context *ctx, + struct dcerpc_pipe **p, const char *server) +{ + struct dcerpc_binding *bd; + const char * available_transports[] = { "ncacn_ip_tcp", "ncacn_np" }; + int i; + NTSTATUS status; + TALLOC_CTX *loc_ctx; + + if (server == NULL) { + return dcerpc_pipe_connect(ctx->event_ctx, p, "ncalrpc", + &ndr_table_IRemoteActivation, + dcom_get_server_credentials(ctx, NULL), ctx->event_ctx, ctx->lp_ctx); + } + loc_ctx = talloc_new(ctx); + + /* Allow server name to contain a binding string */ + if (strchr(server, ':') && + NT_STATUS_IS_OK(dcerpc_parse_binding(loc_ctx, server, &bd))) { + if (DEBUGLVL(11)) + bd->flags |= DCERPC_DEBUG_PRINT_BOTH; + status = dcerpc_pipe_connect_b(ctx->event_ctx, p, bd, + &ndr_table_IRemoteActivation, + dcom_get_server_credentials(ctx, bd->host), ctx->event_ctx, ctx->lp_ctx); + goto end; + } + + for (i = 0; i < ARRAY_SIZE(available_transports); i++) + { + char *binding = talloc_asprintf(loc_ctx, "%s:%s", available_transports[i], server); + if (!binding) { + status = NT_STATUS_NO_MEMORY; + goto end; + } + status = dcerpc_pipe_connect(ctx->event_ctx, p, binding, + &ndr_table_IRemoteActivation, + dcom_get_server_credentials(ctx, server), + ctx->event_ctx, ctx->lp_ctx); + + if (NT_STATUS_IS_OK(status)) { + if (DEBUGLVL(11)) + (*p)->conn->flags |= DCERPC_DEBUG_PRINT_BOTH; + goto end; + } else { + DEBUG(1,(__location__": dcom_connect_host : %s\n", get_friendly_nt_error_msg(status))); + } + } + +end: + talloc_free(loc_ctx); + return status; +} + +struct dcom_object_exporter *object_exporter_by_oxid(struct com_context *ctx, + uint64_t oxid) +{ + struct dcom_object_exporter *ox; + for (ox = ctx->dcom->object_exporters; ox; ox = ox->next) { + if (ox->oxid == oxid) { + return ox; + } + } + + return NULL; +} + +struct dcom_object_exporter *object_exporter_update_oxid(struct com_context *ctx, uint64_t oxid, struct DUALSTRINGARRAY *bindings) +{ + struct dcom_object_exporter *ox; + ox = object_exporter_by_oxid(ctx, oxid); + if (!ox) { + ox = talloc_zero(ctx, struct dcom_object_exporter); + DLIST_ADD(ctx->dcom->object_exporters, ox); + ox->oxid = oxid; + } else { + talloc_free(ox->bindings); + } + ox->bindings = bindings; + talloc_steal(ox, bindings); + return ox; +} + +struct dcom_object_exporter *object_exporter_by_ip(struct com_context *ctx, struct IUnknown *ip) +{ + return object_exporter_by_oxid(ctx, ip->obj.u_objref.u_standard.std.oxid); +} + +WERROR dcom_create_object(struct com_context *ctx, struct GUID *clsid, const char *server, int num_ifaces, struct GUID *iid, struct IUnknown ***ip, WERROR *results) +{ + uint16_t protseq[] = DCOM_NEGOTIATED_PROTOCOLS; + struct dcerpc_pipe *p; + struct dcom_object_exporter *m; + NTSTATUS status; + struct RemoteActivation r; + struct DUALSTRINGARRAY *pds; + int i; + WERROR hr; + uint64_t oxid; + struct GUID ipidRemUnknown; + struct IUnknown *ru_template; + struct ORPCTHAT that; + uint32_t AuthnHint; + struct COMVERSION ServerVersion; + struct MInterfacePointer **ifaces; + TALLOC_CTX *loc_ctx; + + status = dcom_connect_host(ctx, &p, server); + if (NT_STATUS_IS_ERR(status)) { + DEBUG(1, ("Unable to connect to %s - %s\n", server, get_friendly_nt_error_msg(status))); + return ntstatus_to_werror(status); + } + loc_ctx = talloc_new(ctx); + + ifaces = talloc_array(loc_ctx, struct MInterfacePointer *, num_ifaces); + + ZERO_STRUCT(r.in); + r.in.this.version.MajorVersion = COM_MAJOR_VERSION; + r.in.this.version.MinorVersion = COM_MINOR_VERSION; + r.in.this.cid = GUID_random(); + r.in.Clsid = *clsid; + r.in.ClientImpLevel = RPC_C_IMP_LEVEL_IDENTIFY; + r.in.num_protseqs = ARRAY_SIZE(protseq); + r.in.protseq = protseq; + r.in.Interfaces = num_ifaces; + r.in.pIIDs = iid; + r.out.that = &that; + r.out.pOxid = &oxid; + r.out.pdsaOxidBindings = &pds; + r.out.ipidRemUnknown = &ipidRemUnknown; + r.out.AuthnHint = &AuthnHint; + r.out.ServerVersion = &ServerVersion; + r.out.hr = &hr; + r.out.ifaces = ifaces; + r.out.results = results; + + status = dcerpc_RemoteActivation(p, loc_ctx, &r); + talloc_free(p); + + if(NT_STATUS_IS_ERR(status)) { + DEBUG(1, ("Error while running RemoteActivation %s\n", nt_errstr(status))); + hr = ntstatus_to_werror(status); + goto end; + } + + if(!W_ERROR_IS_OK(r.out.result)) { + hr = r.out.result; + goto end; + } + + if(!W_ERROR_IS_OK(hr)) { + goto end; + } + + m = object_exporter_update_oxid(ctx, oxid, pds); + + ru_template = NULL; + *ip = talloc_array(ctx, struct IUnknown *, num_ifaces); + for (i = 0; i < num_ifaces; i++) { + (*ip)[i] = NULL; + if (W_ERROR_IS_OK(results[i])) { + status = dcom_IUnknown_from_OBJREF(ctx, &(*ip)[i], &r.out.ifaces[i]->obj); + if (!NT_STATUS_IS_OK(status)) { + results[i] = ntstatus_to_werror(status); + } else if (!ru_template) + ru_template = (*ip)[i]; + } + } + + /* TODO:avg check when exactly oxid should be updated,its lifetime etc */ + if (m->rem_unknown && memcmp(&m->rem_unknown->obj.u_objref.u_standard.std.ipid, &ipidRemUnknown, sizeof(ipidRemUnknown))) { + talloc_free(m->rem_unknown); + m->rem_unknown = NULL; + } + if (!m->rem_unknown) { + if (!ru_template) { + DEBUG(1,("dcom_create_object: Cannot Create IRemUnknown - template interface not available\n")); + hr = WERR_GENERAL_FAILURE; + } + m->rem_unknown = talloc_zero(m, struct IRemUnknown); + memcpy(m->rem_unknown, ru_template, sizeof(struct IUnknown)); + GUID_from_string(COM_IREMUNKNOWN_UUID, &m->rem_unknown->obj.iid); + m->rem_unknown->obj.u_objref.u_standard.std.ipid = ipidRemUnknown; + m->rem_unknown->vtable = (struct IRemUnknown_vtable *)dcom_proxy_vtable_by_iid(&m->rem_unknown->obj.iid); + /* TODO:avg copy stringbindigs?? */ + } + + dcom_update_credentials_for_aliases(ctx, server, pds); + { + char *c; + c = strchr(server, '['); + if (m->host) talloc_free(m->host); + m->host = c ? talloc_strndup(m, server, c - server) : talloc_strdup(m, server); + } + hr = WERR_OK; +end: + talloc_free(loc_ctx); + return hr; +} + +int find_similar_binding(struct STRINGBINDING **sb, const char *host) +{ + int i, l; + l = strlen(host); + for (i = 0; sb[i]; ++i) { + if ((sb[i]->wTowerId == EPM_PROTOCOL_TCP) && !strncasecmp(host, sb[i]->NetworkAddr, l) && (sb[i]->NetworkAddr[l] == '[')) + break; + } + return i; +} + +WERROR dcom_query_interface(struct IUnknown *d, uint32_t cRefs, uint16_t cIids, struct GUID *iids, struct IUnknown **ip, WERROR *results) +{ + struct dcom_object_exporter *ox; + struct REMQIRESULT *rqir; + WERROR result; + NTSTATUS status; + int i; + TALLOC_CTX *loc_ctx; + struct IUnknown ru; + + loc_ctx = talloc_new(d); + ox = object_exporter_by_ip(d->ctx, d); + + result = IRemUnknown_RemQueryInterface(ox->rem_unknown, loc_ctx, &IUnknown_ipid(d), cRefs, cIids, iids, &rqir); + if (!W_ERROR_IS_OK(result)) { + DEBUG(1, ("dcom_query_interface failed: %08X\n", W_ERROR_V(result))); + talloc_free(loc_ctx); + return result; + } + ru = *(struct IUnknown *)ox->rem_unknown; + for (i = 0; i < cIids; ++i) { + ip[i] = NULL; + results[i] = rqir[i].hResult; + if (W_ERROR_IS_OK(results[i])) { + ru.obj.iid = iids[i]; + ru.obj.u_objref.u_standard.std = rqir[i].std; + status = dcom_IUnknown_from_OBJREF(d->ctx, &ip[i], &ru.obj); + if (!NT_STATUS_IS_OK(status)) { + results[i] = ntstatus_to_werror(status); + } + } + } + + talloc_free(loc_ctx); + return WERR_OK; +} + +int is_ip_binding(const char* s) +{ + while (*s && (*s != '[')) { + if (((*s >= '0') && (*s <= '9')) || *s == '.') + ++s; + else + return 0; + } + return 1; +} + +NTSTATUS dcom_get_pipe(struct IUnknown *iface, struct dcerpc_pipe **pp) +{ + struct dcerpc_binding *binding; + struct GUID iid; + uint64_t oxid; + NTSTATUS status; + int i, j, isimilar; + struct dcerpc_pipe *p; + struct dcom_object_exporter *ox; + const struct ndr_interface_table *table; + + ox = object_exporter_by_oxid(iface->ctx, iface->obj.u_objref.u_standard.std.oxid); + if (!ox) { + DEBUG(0, ("dcom_get_pipe: OXID not found\n")); + return NT_STATUS_NOT_SUPPORTED; + } + + p = ox->pipe; + + iid = iface->vtable->iid; + table = ndr_table_by_uuid(&iid); + if (table == NULL) { + char *guid_str; + guid_str = GUID_string(NULL, &iid); + DEBUG(0,(__location__": dcom_get_pipe - unrecognized interface{%s}\n", guid_str)); + talloc_free(guid_str); + return NT_STATUS_NOT_SUPPORTED; + } + + if (p && p->last_fault_code) { + talloc_free(p); + ox->pipe = p = NULL; + } + + if (p) { + if (!GUID_equal(&p->syntax.uuid, &iid)) { + ox->pipe->syntax.uuid = iid; + + /* interface will always be present, so + * idl_iface_by_uuid can't return NULL */ + /* status = dcerpc_secondary_context(p, &p2, idl_iface_by_uuid(&iid)); */ + status = dcerpc_alter_context(p, p, &ndr_table_by_uuid(&iid)->syntax_id, &p->transfer_syntax); + } else + status = NT_STATUS_OK; + *pp = p; + return status; + } + + status = NT_STATUS_NO_MORE_ENTRIES; + + /* To avoid delays whe connecting nonroutable bindings we 1st check binding starting with hostname */ + /* FIX:low create concurrent connections to all bindings, fastest wins - Win2k and newer does this way???? */ + isimilar = find_similar_binding(ox->bindings->stringbindings, ox->host); + DEBUG(1, (__location__": dcom_get_pipe: host=%s, similar=%s\n", ox->host, ox->bindings->stringbindings[isimilar] ? ox->bindings->stringbindings[isimilar]->NetworkAddr : "None")); + j = isimilar - 1; + for (i = 0; ox->bindings->stringbindings[i]; ++i) { + if (!ox->bindings->stringbindings[++j]) j = 0; + /* FIXME:LOW Use also other transports if possible */ + if ((j != isimilar) && (ox->bindings->stringbindings[j]->wTowerId != EPM_PROTOCOL_TCP || !is_ip_binding(ox->bindings->stringbindings[j]->NetworkAddr))) { + DEBUG(9, ("dcom_get_pipe: Skipping stringbinding %24.24s\n", ox->bindings->stringbindings[j]->NetworkAddr)); + continue; + } + DEBUG(9, ("dcom_get_pipe: Trying stringbinding %s\n", ox->bindings->stringbindings[j]->NetworkAddr)); + status = dcerpc_binding_from_STRINGBINDING(iface->ctx, &binding, + ox->bindings->stringbindings[j]); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1, ("Error parsing string binding")); + } else { + /* FIXME:LOW Make flags more flexible */ + binding->flags |= DCERPC_AUTH_NTLM | DCERPC_SIGN; + if (DEBUGLVL(11)) + binding->flags |= DCERPC_DEBUG_PRINT_BOTH; + status = dcerpc_pipe_connect_b(iface->ctx->event_ctx, &p, binding, + ndr_table_by_uuid(&iid), + dcom_get_server_credentials(iface->ctx, binding->host), + iface->ctx->event_ctx, iface->ctx->lp_ctx); + talloc_unlink(iface->ctx, binding); + } + if (NT_STATUS_IS_OK(status)) break; + } + + if (NT_STATUS_IS_ERR(status)) { + DEBUG(0, ("Unable to connect to remote host - %s\n", nt_errstr(status))); + return status; + } + + DEBUG(2, ("Successfully connected to OXID %llx\n", (long long)oxid)); + + ox->pipe = *pp = p; + + return NT_STATUS_OK; +} + +NTSTATUS dcom_OBJREF_from_IUnknown(TALLLOC_CTX *mem_ctx, struct OBJREF *o, struct IUnknown *p) +{ + /* FIXME: Cache generated objref objects? */ + ZERO_STRUCTP(o); + + if (!p) { + o->signature = OBJREF_SIGNATURE; + o->flags = OBJREF_NULL; + } else { + *o = p->obj; + switch(o->flags) { + case OBJREF_CUSTOM: { + marshal_fn marshal; + + marshal = dcom_marshal_by_clsid(&o->u_objref.u_custom.clsid); + if (marshal) { + return marshal(mem_ctx, p, o); + } else { + return NT_STATUS_NOT_SUPPORTED; + } + } + } + } + + return NT_STATUS_OK; +} + +enum ndr_err_code dcom_IUnknown_from_OBJREF(struct com_context *ctx, struct IUnknown **_p, struct OBJREF *o) +{ + struct IUnknown *p; + struct dcom_object_exporter *ox; + unmarshal_fn unmarshal; + + switch(o->flags) { + case OBJREF_NULL: + *_p = NULL; + return NDR_ERR_SUCCESS; + + case OBJREF_STANDARD: + p = talloc_zero(ctx, struct IUnknown); + p->ctx = ctx; + p->obj = *o; + p->vtable = dcom_proxy_vtable_by_iid(&o->iid); + + if (!p->vtable) { + DEBUG(0, ("Unable to find proxy class for interface with IID %s\n", GUID_string(ctx, &o->iid))); + return NDR_ERR_INVALID_POINTER; + } + + p->vtable->Release_send = dcom_release_send; + + ox = object_exporter_by_oxid(ctx, o->u_objref.u_standard.std.oxid); + /* FIXME: Add object to list of objects to ping */ + *_p = p; + return NDR_ERR_SUCCESS; + + case OBJREF_HANDLER: + p = talloc_zero(ctx, struct IUnknown); + p->ctx = ctx; + p->obj = *o; + ox = object_exporter_by_oxid(ctx, o->u_objref.u_handler.std.oxid ); + /* FIXME: Add object to list of objects to ping */ +/*FIXME p->vtable = dcom_vtable_by_clsid(&o->u_objref.u_handler.clsid);*/ + /* FIXME: Do the custom unmarshaling call */ + + *_p = p; + return NDR_ERR_BAD_SWITCH; + + case OBJREF_CUSTOM: + p = talloc_zero(ctx, struct IUnknown); + p->ctx = ctx; + p->vtable = NULL; + p->obj = *o; + unmarshal = dcom_unmarshal_by_clsid(&o->u_objref.u_custom.clsid); + *_p = p; + if (unmarshal) { + return unmarshal(ctx, o, _p); + } else { + return NDR_ERR_BAD_SWITCH; + } + } + + return NDR_ERR_BAD_SWITCH; +} + +uint64_t dcom_get_current_oxid(void) +{ + return getpid(); +} + +/* FIXME:Fake async dcom_get_pipe_* */ +struct composite_context *dcom_get_pipe_send(struct IUnknown *d, TALLOC_CTX *mem_ctx) +{ + struct composite_context *c; + + c = composite_create(0, d->ctx->event_ctx); + if (c == NULL) return NULL; + c->private_data = d; + /* composite_done(c); bugged - callback is triggered twice by composite_continue and composite_done */ + c->state = COMPOSITE_STATE_DONE; /* this is workaround */ + + return c; +} + +NTSTATUS dcom_get_pipe_recv(struct composite_context *c, struct dcerpc_pipe **pp) +{ + NTSTATUS status; + + status = dcom_get_pipe((struct IUnknown *)c->private_data, pp); + talloc_free(c); + + return status; +} + +/* FIXME:avg put IUnknown_Release_out into header */ +struct IUnknown_Release_out { + uint32_t result; +}; + +void dcom_release_continue(struct composite_context *cr) +{ + struct composite_context *c; + struct IUnknown *d; + struct IUnknown_Release_out *out; + WERROR r; + + c = talloc_get_type(cr->async.private_data, struct composite_context); + d = c->private_data; + r = IRemUnknown_RemRelease_recv(cr); + talloc_free(d); + out = talloc_zero(c, struct IUnknown_Release_out); + out->result = W_ERROR_V(r); + c->private_data = out; + composite_done(c); +} + +struct composite_context *dcom_release_send(struct IUnknown *d, TALLOC_CTX *mem_ctx) +{ + struct composite_context *c, *cr; + struct REMINTERFACEREF iref; + struct dcom_object_exporter *ox; + + c = composite_create(d->ctx, d->ctx->event_ctx); + if (c == NULL) return NULL; + c->private_data = d; + + ox = object_exporter_by_ip(d->ctx, d); + iref.ipid = IUnknown_ipid(d); + iref.cPublicRefs = 5; + iref.cPrivateRefs = 0; + cr = IRemUnknown_RemRelease_send(ox->rem_unknown, mem_ctx, 1, &iref); + + composite_continue(c, cr, dcom_release_continue, c); + return c; +} + +uint32_t dcom_release_recv(struct composite_context *c) +{ + NTSTATUS status; + WERROR r; + + status = composite_wait(c); + if (!NT_STATUS_IS_OK(status)) + r = ntstatus_to_werror(status); + else + W_ERROR_V(r) = ((struct IUnknown_Release_out *)c->private_data)->result; + talloc_free(c); + return W_ERROR_IS_OK(r) ? 0 : W_ERROR_V(r); +} + +uint32_t dcom_release(void *interface, TALLOC_CTX *mem_ctx) +{ + struct composite_context *c; + + c = dcom_release_send(interface, mem_ctx); + return dcom_release_recv(c); +} + +void dcom_proxy_async_call_recv_pipe_send_rpc(struct composite_context *c_pipe) +{ + struct composite_context *c; + struct dcom_proxy_async_call_state *s; + struct dcerpc_pipe *p; + struct rpc_request *req; + NTSTATUS status; + + c = c_pipe->async.private_data; + s = talloc_get_type(c->private_data, struct dcom_proxy_async_call_state); + + status = dcom_get_pipe_recv(c_pipe, &p); + if (!NT_STATUS_IS_OK(status)) { + composite_error(c, NT_STATUS_RPC_NT_CALL_FAILED); + return; + } + + req = dcerpc_ndr_request_send(p, &s->d->obj.u_objref.u_standard.std.ipid, s->table, s->opnum, s, s->r); + composite_continue_rpc(c, req, s->continuation, c); +} diff --git a/source4/lib/com/dcom/tables.c b/source4/lib/com/dcom/tables.c new file mode 100644 index 0000000000..f94aa87925 --- /dev/null +++ b/source4/lib/com/dcom/tables.c @@ -0,0 +1,92 @@ +/* + Unix SMB/CIFS implementation. + DCOM proxy tables functionality + Copyright (C) 2005 Jelmer Vernooij <jelmer@samba.org> + Copyright (C) 2006 Andrzej Hajda <andrzej.hajda@wp.pl> + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "../lib/util/dlinklist.h" +#include "librpc/gen_ndr/com_dcom.h" +#include "lib/com/dcom/dcom.h" + +static struct dcom_proxy { + struct IUnknown_vtable *vtable; + struct dcom_proxy *prev, *next; +} *proxies = NULL; + +NTSTATUS dcom_register_proxy(struct IUnknown_vtable *proxy_vtable) +{ + struct dcom_proxy *proxy = talloc(talloc_autofree_context(), struct dcom_proxy); + + proxy->vtable = proxy_vtable; + DLIST_ADD(proxies, proxy); + + return NT_STATUS_OK; +} + +struct IUnknown_vtable *dcom_proxy_vtable_by_iid(struct GUID *iid) +{ + struct dcom_proxy *p; + for (p = proxies; p; p = p->next) { + if (GUID_equal(&p->vtable->iid, iid)) { + return p->vtable; + } + } + return NULL; +} + +static struct dcom_marshal { + struct GUID clsid; + marshal_fn marshal; + unmarshal_fn unmarshal; + struct dcom_marshal *prev, *next; +} *marshals = NULL; + +NTSTATUS dcom_register_marshal(struct GUID *clsid, marshal_fn marshal, unmarshal_fn unmarshal) +{ + struct dcom_marshal *p = talloc(talloc_autofree_context(), struct dcom_marshal); + + p->clsid = *clsid; + p->marshal = marshal; + p->unmarshal = unmarshal; + DLIST_ADD(marshals, p); + return NT_STATUS_OK; +} + +_PUBLIC_ marshal_fn dcom_marshal_by_clsid(struct GUID *clsid) +{ + struct dcom_marshal *p; + for (p = marshals; p; p = p->next) { + if (GUID_equal(&p->clsid, clsid)) { + return p->marshal; + } + } + return NULL; +} + +_PUBLIC_ unmarshal_fn dcom_unmarshal_by_clsid(struct GUID *clsid) +{ + struct dcom_marshal *p; + for (p = marshals; p; p = p->next) { + if (GUID_equal(&p->clsid, clsid)) { + return p->unmarshal; + } + } + return NULL; +} + |