r5603: add "authservice()" property to the interface property list
[samba.git] / source4 / librpc / rpc / dcerpc_util.c
index 45345325b0b488bef5e24decaf5077e20b5001c7..7b753d1b3070a9dfaf9b762d5bbdf5e8d793115b 100644 (file)
 #include "includes.h"
 #include "system/network.h"
 #include "librpc/gen_ndr/ndr_epmapper.h"
-#include "librpc/gen_ndr/tables.h"
 
 /*
   find the pipe name for a local IDL interface
 */
 const char *idl_pipe_name(const char *uuid, uint32_t if_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]->name;
+       const struct dcerpc_interface_list *l;
+       for (l=librpc_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";
@@ -46,11 +45,11 @@ const char *idl_pipe_name(const char *uuid, uint32_t if_version)
 */
 int idl_num_calls(const char *uuid, uint32_t if_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;
+       const struct dcerpc_interface_list *l;
+       for (l=librpc_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;
@@ -62,10 +61,10 @@ int idl_num_calls(const char *uuid, uint32_t if_version)
 */
 const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
 {
-       int i;
-       for (i=0;dcerpc_pipes[i];i++) {
-               if (strcasecmp(dcerpc_pipes[i]->name, name) == 0) {
-                       return dcerpc_pipes[i];
+       const struct dcerpc_interface_list *l;
+       for (l=librpc_dcerpc_pipes();l;l=l->next) {
+               if (strcasecmp(l->table->name, name) == 0) {
+                       return l->table;
                }
        }
        return NULL;
@@ -76,17 +75,16 @@ const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
 */
 const struct dcerpc_interface_table *idl_iface_by_uuid(const char *uuid)
 {
-       int i;
-       for (i=0;dcerpc_pipes[i];i++) {
-               if (strcasecmp(dcerpc_pipes[i]->uuid, uuid) == 0) {
-                       return dcerpc_pipes[i];
+       const struct dcerpc_interface_list *l;
+       for (l=librpc_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
 */
@@ -106,6 +104,10 @@ NTSTATUS dcerpc_push_auth(DATA_BLOB *blob, TALLOC_CTX *mem_ctx,
                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 {
@@ -135,7 +137,7 @@ static const struct {
        const char *name;
        enum dcerpc_transport_t transport;
        int num_protocols;
-       enum epm_protocols protseq[MAX_PROTSEQ];
+       enum epm_protocol protseq[MAX_PROTSEQ];
 } transports[] = {
        { "ncacn_np",     NCACN_NP, 3, 
                { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB, EPM_PROTOCOL_NETBIOS }},
@@ -174,12 +176,88 @@ static const struct {
        {"sign", DCERPC_SIGN},
        {"seal", DCERPC_SEAL},
        {"connect", DCERPC_CONNECT},
+       {"spnego", DCERPC_AUTH_SPNEGO},
+       {"krb5", DCERPC_AUTH_KRB5},
        {"validate", DCERPC_DEBUG_VALIDATE_BOTH},
        {"print", DCERPC_DEBUG_PRINT_BOTH},
        {"padcheck", DCERPC_DEBUG_PAD_CHECK},
        {"bigendian", DCERPC_PUSH_BIGENDIAN}
 };
 
+const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *fl)
+{
+       struct GUID uuid;
+       uint16_t if_version;
+       NTSTATUS status;
+
+       switch(fl->lhs.protocol) {
+               case EPM_PROTOCOL_UUID:
+                       status = dcerpc_floor_get_lhs_data(fl, &uuid, &if_version);
+                       if (NT_STATUS_IS_OK(status)) {
+                               /* lhs is used: UUID */
+                               char *uuidstr;
+
+                               uuidstr = GUID_string(mem_ctx, &uuid);
+
+                               if (strcasecmp(uuidstr, NDR_GUID) == 0) {
+                                       return "NDR";
+                               } 
+
+                               return talloc_asprintf(mem_ctx, " uuid %s/0x%02x", uuidstr, if_version);
+                       } else { /* IPX */
+                               return talloc_asprintf(mem_ctx, "IPX:%s", 
+                                               data_blob_hex_string(mem_ctx, &fl->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", fl->rhs.ip.ipaddr);
+
+               case EPM_PROTOCOL_PIPE:
+                       return talloc_asprintf(mem_ctx, "PIPE:%s", fl->rhs.pipe.path);
+
+               case EPM_PROTOCOL_SMB:
+                       return talloc_asprintf(mem_ctx, "SMB:%s", fl->rhs.smb.unc);
+
+               case EPM_PROTOCOL_UNIX_DS:
+                       return talloc_asprintf(mem_ctx, "Unix:%s", fl->rhs.unix_ds.path);
+
+               case EPM_PROTOCOL_NETBIOS:
+                       return talloc_asprintf(mem_ctx, "NetBIOS:%s", fl->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", fl->rhs.http.port);
+
+               case EPM_PROTOCOL_TCP:
+                       return talloc_asprintf(mem_ctx, "TCP:%d", fl->rhs.tcp.port);
+
+               case EPM_PROTOCOL_UDP:
+                       return talloc_asprintf(mem_ctx, "UDP:%d", fl->rhs.udp.port);
+
+               default:
+                       return talloc_asprintf(mem_ctx, "UNK(%02x):", fl->lhs.protocol);
+       }
+}
 
 
 /*
@@ -200,7 +278,7 @@ const char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_bindi
                return NULL;
        }
 
-       if (!uuid_all_zero(&b->object)) { 
+       if (!GUID_all_zero(&b->object)) { 
                s = talloc_asprintf(s, "%s@",
                                    GUID_string(mem_ctx, &b->object));
        }
@@ -320,7 +398,7 @@ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_
 
        comma_count = count_chars(options, ',');
 
-       b->options = talloc_array_p(mem_ctx, const char *, comma_count+2);
+       b->options = talloc_array(mem_ctx, const char *, comma_count+2);
        if (!b->options) {
                return NT_STATUS_NO_MEMORY;
        }
@@ -366,6 +444,39 @@ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_
        return NT_STATUS_OK;
 }
 
+NTSTATUS dcerpc_floor_get_lhs_data(struct epm_floor *floor, struct GUID *uuid, uint16_t *if_version)
+{
+       TALLOC_CTX *mem_ctx = talloc_init("floor_get_lhs_data");
+       struct ndr_pull *ndr = ndr_pull_init_blob(&floor->lhs.lhs_data, mem_ctx);
+       NTSTATUS status;
+       
+       ndr->flags |= LIBNDR_FLAG_NOALIGN;
+
+       status = ndr_pull_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
+       if (NT_STATUS_IS_ERR(status)) {
+               talloc_free(mem_ctx);
+               return status;
+       }
+
+       status = ndr_pull_uint16(ndr, NDR_SCALARS, if_version);
+
+       talloc_free(mem_ctx);
+
+       return status;
+}
+
+DATA_BLOB dcerpc_floor_pack_lhs_data(TALLOC_CTX *mem_ctx, struct GUID *uuid, uint32_t if_version)
+{
+       struct ndr_push *ndr = ndr_push_init_ctx(mem_ctx);
+
+       ndr->flags |= LIBNDR_FLAG_NOALIGN;
+
+       ndr_push_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
+       ndr_push_uint16(ndr, NDR_SCALARS, if_version);
+
+       return ndr_push_blob(ndr);
+}
+
 const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor)
 {
        switch (floor->lhs.protocol) {
@@ -382,15 +493,7 @@ const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *flo
                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));
-               }
+               return talloc_strdup(mem_ctx, floor->rhs.ip.ipaddr);
 
        case EPM_PROTOCOL_NCACN:
                return NULL;
@@ -428,6 +531,10 @@ const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *flo
                
        case EPM_PROTOCOL_NULL:
                return NULL;
+
+       default:
+               DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
+               break;
        }
 
        return NULL;
@@ -449,11 +556,8 @@ static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor
                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;
-               }
+               floor->rhs.ip.ipaddr = talloc_strdup(mem_ctx, data);
+               NT_STATUS_HAVE_NO_MEMORY(floor->rhs.ip.ipaddr);
                return NT_STATUS_OK;
 
        case EPM_PROTOCOL_NCACN:
@@ -466,23 +570,17 @@ static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor
 
        case EPM_PROTOCOL_SMB:
                floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
-               if (!floor->rhs.smb.unc) {
-                       return NT_STATUS_NO_MEMORY;
-               }
+               NT_STATUS_HAVE_NO_MEMORY(floor->rhs.smb.unc);
                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;
-               }
+               NT_STATUS_HAVE_NO_MEMORY(floor->rhs.pipe.path);
                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;
-               }
+               NT_STATUS_HAVE_NO_MEMORY(floor->rhs.netbios.name);
                return NT_STATUS_OK;
 
        case EPM_PROTOCOL_NCALRPC:
@@ -498,25 +596,41 @@ static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor
                
        case EPM_PROTOCOL_STREETTALK:
                floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
-               if (!floor->rhs.streettalk.streettalk) {
-                       return NT_STATUS_NO_MEMORY;
-               }
+               NT_STATUS_HAVE_NO_MEMORY(floor->rhs.streettalk.streettalk);
                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;
-               }
+               NT_STATUS_HAVE_NO_MEMORY(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", 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;
@@ -545,6 +659,8 @@ enum dcerpc_transport_t dcerpc_transport_by_tower(struct epm_tower *tower)
 
 NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower, struct dcerpc_binding *binding)
 {
+       NTSTATUS status;
+
        ZERO_STRUCT(binding->object);
        binding->options = NULL;
        binding->host = NULL;
@@ -561,8 +677,12 @@ NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower,
        }
 
        /* Set object uuid */
-       binding->object = tower->floors[0].lhs.info.uuid.uuid;
-       binding->object_version = tower->floors[0].lhs.info.uuid.version;
+       status = dcerpc_floor_get_lhs_data(&tower->floors[0], &binding->object, &binding->object_version);
+       
+       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 */
        
@@ -584,8 +704,9 @@ NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower,
 
 NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding, struct epm_tower *tower)
 {
-       const enum epm_protocols *protseq;
+       const enum epm_protocol *protseq = NULL;
        int num_protocols = -1, i;
+       struct GUID ndr_guid;
        NTSTATUS status;
        
        /* Find transport */
@@ -603,27 +724,31 @@ NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx, struct dcerpc_binding *
        }
 
        tower->num_floors = 2 + num_protocols;
-       tower->floors = talloc_array_p(mem_ctx, struct epm_floor, tower->num_floors);
+       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.info.uuid.uuid = binding->object;
-       tower->floors[0].lhs.info.uuid.version = binding->object_version;
-       tower->floors[0].rhs.uuid.unknown = 0;
+
+       tower->floors[0].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &binding->object, binding->object_version);
+
+       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.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);
+
+       status = GUID_from_string(NDR_GUID, &ndr_guid);
        if (NT_STATUS_IS_ERR(status)) {
                return status;
        }
 
+       tower->floors[1].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &ndr_guid, NDR_GUID_VERSION);
+       
+       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.info.lhs_data = data_blob_talloc(mem_ctx, NULL, 0);
+               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], "");
        }
@@ -664,13 +789,15 @@ NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *bind
 
        if (table) {
                struct dcerpc_binding default_binding;
-               
+
+               binding->authservice = talloc_strdup(mem_ctx, table->authservices->names[0]);
+
                /* 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);   
+                               binding->endpoint = talloc_strdup(mem_ctx, default_binding.endpoint);
                                return NT_STATUS_OK;
                        }
                }
@@ -683,6 +810,7 @@ NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *bind
        epmapper_binding.options = NULL;
        epmapper_binding.flags = 0;
        epmapper_binding.endpoint = NULL;
+       epmapper_binding.authservice = NULL;
        
        status = dcerpc_pipe_connect_b(&p,
                                        &epmapper_binding,
@@ -746,9 +874,54 @@ NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *bind
 }
 
 
+/* 
+   perform an authenticated bind if needed
+*/
+static NTSTATUS dcerpc_pipe_auth(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;
+       p->conn->flags = binding->flags;
+
+       /* remember the binding string for possible secondary connections */
+       p->conn->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]) {
+               uint8_t auth_type;
+               if (binding->flags & DCERPC_AUTH_SPNEGO) {
+                       auth_type = DCERPC_AUTH_TYPE_SPNEGO;
+               } else if (binding->flags & DCERPC_AUTH_KRB5) {
+                       auth_type = DCERPC_AUTH_TYPE_KRB5;
+               } else {
+                       auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
+               }
+
+               status = dcerpc_bind_auth_password(p, pipe_uuid, pipe_version, 
+                                                  domain, username, password, 
+                                                  auth_type,
+                                                  binding->authservice);
+       } 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)));
+       }
+       return status;
+}
+
+
 /* 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, 
+static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **pp
                                             struct dcerpc_binding *binding,
                                             const char *pipe_uuid, 
                                             uint32_t pipe_version,
@@ -756,19 +929,27 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **p,
                                             const char *username,
                                             const char *password)
 {
+       struct dcerpc_pipe *p;
        NTSTATUS status;
-       BOOL retry;
        struct smbcli_state *cli;
        const char *pipe_name = NULL;
-       TALLOC_CTX *mem_ctx = talloc_init("dcerpc_pipe_connect_ncacn_np");
+       TALLOC_CTX *tmp_ctx;
+
+       *pp = NULL;
+
+       p = dcerpc_pipe_init(NULL);
+       if (p == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+       tmp_ctx = talloc_new(p);
        
        /* Look up identifier using the epmapper */
        if (!binding->endpoint) {
-               status = dcerpc_epm_map_binding(mem_ctx, binding, pipe_uuid, pipe_version);
+               status = dcerpc_epm_map_binding(tmp_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);
+                       talloc_free(p);
                        return status;
                }
                DEBUG(1,("Mapped to DCERPC/NP pipe %s\n", binding->endpoint));
@@ -777,188 +958,159 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **p,
        pipe_name = binding->endpoint;
 
        if (!strncasecmp(pipe_name, "/pipe/", 6) || 
-               !strncasecmp(pipe_name, "\\pipe\\", 6)) {
-               pipe_name+=6;
+           !strncasecmp(pipe_name, "\\pipe\\", 6)) {
+               pipe_name += 6;
        }
 
        if (pipe_name[0] != '\\') {
-               pipe_name = talloc_asprintf(mem_ctx, "\\%s", pipe_name);
+               pipe_name = talloc_asprintf(tmp_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$", "?????"
-                                            "", "", NULL, 0, &retry);
+               status = smbcli_full_connection(p->conn, &cli, lp_netbios_name(),
+                                               binding->host
+                                               "ipc$", NULL
+                                               "", "", NULL);
        } else {
-               status = smbcli_full_connection(NULL, &cli, lp_netbios_name(),
-                                            binding->host, NULL
-                                            "ipc$", "?????", 
-                                            username, domain,
-                                            password, 0, &retry);
+               status = smbcli_full_connection(p->conn, &cli, lp_netbios_name(),
+                                               binding->host
+                                               "ipc$", NULL,
+                                               username, domain,
+                                               password);
        }
        if (!NT_STATUS_IS_OK(status)) {
                DEBUG(0,("Failed to connect to %s - %s\n", binding->host, nt_errstr(status)));
-               talloc_destroy(mem_ctx);
+               talloc_free(p);
                return status;
        }
 
-       status = dcerpc_pipe_open_smb(p, cli->tree, pipe_name);
+       status = dcerpc_pipe_open_smb(p->conn, 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);
+               talloc_free(p);
                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 (!(binding->flags & DCERPC_AUTH_OPTIONS)) {
+               username = NULL;
        }
-
+       
+       status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
        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_free(p);
                return status;
        }
 
+       (*pp) = p;
+       talloc_free(tmp_ctx);
+
        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)
+static NTSTATUS dcerpc_pipe_connect_ncalrpc(struct dcerpc_pipe **pp
+                                           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");
+       struct dcerpc_pipe *p;
+       TALLOC_CTX *tmp_ctx;
+
+       (*pp) = NULL;
+
+       p = dcerpc_pipe_init(NULL);
+       if (p == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+       tmp_ctx = talloc_new(p);
 
        /* Look up identifier using the epmapper */
        if (!binding->endpoint) {
-               status = dcerpc_epm_map_binding(mem_ctx, binding, pipe_uuid, pipe_version);
+               status = dcerpc_epm_map_binding(tmp_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);
+                       talloc_free(p);
                        return status;
                }
                DEBUG(1,("Mapped to DCERPC/LRPC identifier %s\n", binding->endpoint));
        }
 
-       status = dcerpc_pipe_open_pipe(p, binding->endpoint);
-
+       status = dcerpc_pipe_open_pipe(p->conn, 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);
+               DEBUG(0,("Failed to open ncalrpc pipe '%s' - %s\n", 
+                        binding->endpoint, nt_errstr(status)));
+               talloc_free(p);
                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);
        }
 
+       status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
        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);
+               talloc_free(p);
                return status;
        }
-       talloc_destroy(mem_ctx);
-    return status;
+
+       (*pp) = p;
+       talloc_free(tmp_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)
+static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream(struct dcerpc_pipe **pp
+                                                     struct dcerpc_binding *binding,
+                                                     const char *pipe_uuid, 
+                                                     uint32_t pipe_version,
+                                                     const char *domain,
+                                                     const char *username,
+                                                     const char *password)
 {
        NTSTATUS status;
+       struct dcerpc_pipe *p;
+
+       (*pp) = NULL;
 
        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);
+       p = dcerpc_pipe_init(NULL);
+       if (p == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       status = dcerpc_pipe_open_unix_stream(p->conn, binding->endpoint);
        if (!NT_STATUS_IS_OK(status)) {
                DEBUG(0,("Failed to open unix socket %s - %s\n", 
                         binding->endpoint, nt_errstr(status)));
+               talloc_free(p);
                 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);
-       }
-
+       status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
        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_free(p);
                return status;
        }
+
+       (*pp) = p;
  
-    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, 
+static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **pp
                                                 struct dcerpc_binding *binding,
                                                 const char *pipe_uuid, 
                                                 uint32_t pipe_version,
@@ -968,14 +1120,24 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **p,
 {
        NTSTATUS status;
        uint32_t port = 0;
-       TALLOC_CTX *mem_ctx = talloc_init("connect_ncacn_ip_tcp");
+       struct dcerpc_pipe *p;
+       TALLOC_CTX *tmp_ctx;
+
+       (*pp) = NULL;
+
+       p = dcerpc_pipe_init(NULL);
+       if (p == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+       tmp_ctx = talloc_new(p);
 
        if (!binding->endpoint) {
-               status = dcerpc_epm_map_binding(mem_ctx, binding, 
-                                                pipe_uuid, pipe_version);
+               status = dcerpc_epm_map_binding(tmp_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)));
+                       talloc_free(p);
                        return status;
                }
                DEBUG(1,("Mapped to DCERPC/TCP port %s\n", binding->endpoint));
@@ -983,33 +1145,22 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **p,
 
        port = atoi(binding->endpoint);
 
-       status = dcerpc_pipe_open_tcp(p, binding->host, port);
+       status = dcerpc_pipe_open_tcp(p->conn, binding->host, port);
        if (!NT_STATUS_IS_OK(status)) {
-               DEBUG(0,("Failed to connect to %s:%d\n", binding->host, port));
+               DEBUG(0,("Failed to connect to %s:%d - %s\n", 
+                        binding->host, port, nt_errstr(status)));
+               talloc_free(p);
                 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);
-       }
-
+       status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
        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_free(p);
                return status;
        }
+
+       (*pp) = p;
+       talloc_free(tmp_ctx);
  
         return status;
 }
@@ -1017,7 +1168,7 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **p,
 
 /* 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, 
+NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **pp
                               struct dcerpc_binding *binding,
                               const char *pipe_uuid, 
                               uint32_t pipe_version,
@@ -1029,18 +1180,20 @@ NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **p,
 
        switch (binding->transport) {
        case NCACN_NP:
-               status = dcerpc_pipe_connect_ncacn_np(p, binding, pipe_uuid, pipe_version,
+               status = dcerpc_pipe_connect_ncacn_np(pp, 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,
+               status = dcerpc_pipe_connect_ncacn_ip_tcp(pp, 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);
+               status = dcerpc_pipe_connect_ncacn_unix_stream(pp, 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);
+               status = dcerpc_pipe_connect_ncalrpc(pp, binding, pipe_uuid, pipe_version, 
+                                                    domain, username, password);
                break;
        default:
                return NT_STATUS_NOT_SUPPORTED;
@@ -1052,7 +1205,7 @@ NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **p,
 
 /* 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, 
+NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **pp
                             const char *binding,
                             const char *pipe_uuid, 
                             uint32_t pipe_version,
@@ -1062,23 +1215,23 @@ NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **p,
 {
        struct dcerpc_binding b;
        NTSTATUS status;
-       TALLOC_CTX *mem_ctx;
+       TALLOC_CTX *tmp_ctx;
 
-       mem_ctx = talloc_init("dcerpc_pipe_connect");
-       if (!mem_ctx) return NT_STATUS_NO_MEMORY;
+       tmp_ctx = talloc_new(NULL);
 
-       status = dcerpc_parse_binding(mem_ctx, binding, &b);
+       status = dcerpc_parse_binding(tmp_ctx, binding, &b);
        if (!NT_STATUS_IS_OK(status)) {
                DEBUG(0,("Failed to parse dcerpc binding '%s'\n", binding));
-               talloc_destroy(mem_ctx);
+               talloc_free(tmp_ctx);
                return status;
        }
 
-       DEBUG(3,("Using binding %s\n", dcerpc_binding_string(mem_ctx, &b)));
+       DEBUG(3,("Using binding %s\n", dcerpc_binding_string(tmp_ctx, &b)));
 
-       status = dcerpc_pipe_connect_b(p, &b, pipe_uuid, pipe_version, domain, username, password);
+       status = dcerpc_pipe_connect_b(pp, &b, pipe_uuid, pipe_version, domain, username, password);
+
+       talloc_free(tmp_ctx);
 
-       talloc_destroy(mem_ctx);
        return status;
 }
 
@@ -1098,34 +1251,34 @@ NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe *
        NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
        struct dcerpc_binding b;
 
-       switch (p->transport.transport) {
+       (*p2) = dcerpc_pipe_init(p);
+       if (*p2 == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+       
+       switch (p->conn->transport.transport) {
        case NCACN_NP:
-               tree = dcerpc_smb_tree(p);
+               tree = dcerpc_smb_tree(p->conn);
                if (!tree) {
                        return NT_STATUS_INVALID_PARAMETER;
                }
-
-               status = dcerpc_pipe_open_smb(p2, tree, pipe_name);
+               status = dcerpc_pipe_open_smb((*p2)->conn, tree, pipe_name);
                break;
 
        case NCACN_IP_TCP:
-               status = dcerpc_parse_binding(p, p->binding_string, &b);
+               status = dcerpc_parse_binding(p, p->conn->binding_string, &b);
                if (!NT_STATUS_IS_OK(status)) {
                        return status;
                }
-               b.flags &= ~DCERPC_AUTH_OPTIONS;
-               status = dcerpc_pipe_connect_ncacn_ip_tcp(p2, &b, pipe_uuid,
-                                                         pipe_version, NULL, 
-                                                         NULL, NULL);
+               status = dcerpc_pipe_open_tcp((*p2)->conn, b.host, atoi(b.endpoint));
                break;
 
        case NCALRPC:
-               status = dcerpc_parse_binding(p, p->binding_string, &b);
+               status = dcerpc_parse_binding(p, p->conn->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);
+               status = dcerpc_pipe_open_pipe((*p2)->conn, b.endpoint);
                break;
 
        default:
@@ -1133,22 +1286,22 @@ NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe *
        }
 
        if (!NT_STATUS_IS_OK(status)) {
+               talloc_free(*p2);
                return status;
        }
 
-       talloc_steal(p, *p2);
-
-       (*p2)->flags = p->flags;
+       (*p2)->conn->flags = p->conn->flags;
 
        status = dcerpc_bind_auth_none(*p2, pipe_uuid, pipe_version);
        if (!NT_STATUS_IS_OK(status)) {
+               talloc_free(*p2);
                 return status;
         }
 
        return NT_STATUS_OK;
 }
 
-NTSTATUS dcerpc_generic_session_key(struct dcerpc_pipe *p,
+NTSTATUS dcerpc_generic_session_key(struct dcerpc_connection *c,
                                    DATA_BLOB *session_key)
 {
        /* this took quite a few CPU cycles to find ... */
@@ -1163,7 +1316,7 @@ NTSTATUS dcerpc_generic_session_key(struct dcerpc_pipe *p,
 NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
                                  DATA_BLOB *session_key)
 {
-       return p->security_state.session_key(p, session_key);
+       return p->conn->security_state.session_key(p->conn, session_key);
 }
 
 
@@ -1189,7 +1342,7 @@ void dcerpc_log_packet(const struct dcerpc_interface_table *ndr,
                if (name == NULL) {
                        return;
                }
-               if (!file_exist(name, NULL)) {
+               if (!file_exist(name)) {
                        if (file_save(name, pkt->data, pkt->length)) {
                                DEBUG(10,("Logged rpc packet to %s\n", name));
                        }
@@ -1200,3 +1353,50 @@ void dcerpc_log_packet(const struct dcerpc_interface_table *ndr,
        }
 }
 
+
+
+/*
+  create a secondary context from a primary connection
+
+  this uses dcerpc_alter_context() to create a new dcerpc context_id
+*/
+NTSTATUS dcerpc_secondary_context(struct dcerpc_pipe *p, 
+                                 struct dcerpc_pipe **pp2,
+                                 const char *pipe_uuid,
+                                 uint32_t pipe_version)
+{
+       NTSTATUS status;
+       struct dcerpc_pipe *p2;
+       
+       p2 = talloc_zero(p, struct dcerpc_pipe);
+       if (p2 == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+       p2->conn = talloc_reference(p2, p->conn);
+
+       p2->context_id = ++p->conn->next_context_id;
+
+       status = GUID_from_string(pipe_uuid, &p2->syntax.uuid);
+       if (!NT_STATUS_IS_OK(status)) {
+               talloc_free(p2);
+               return status;
+       }
+       p2->syntax.if_version = pipe_version;
+
+       status = GUID_from_string(NDR_GUID, &p2->transfer_syntax.uuid);
+       if (!NT_STATUS_IS_OK(status)) {
+               talloc_free(p2);
+               return status;
+       }
+       p2->transfer_syntax.if_version = NDR_GUID_VERSION;
+
+       status = dcerpc_alter_context(p2, p2, &p2->syntax, &p2->transfer_syntax);
+       if (!NT_STATUS_IS_OK(status)) {
+               talloc_free(p2);
+               return status;
+       }
+
+       *pp2 = p2;
+
+       return status;
+}