diff options
Diffstat (limited to 'source4/libcli/resolve')
| -rw-r--r-- | source4/libcli/resolve/bcast.c | 163 | ||||
| -rw-r--r-- | source4/libcli/resolve/resolve.c | 51 |
2 files changed, 214 insertions, 0 deletions
diff --git a/source4/libcli/resolve/bcast.c b/source4/libcli/resolve/bcast.c new file mode 100644 index 0000000000..b2d37fbfbb --- /dev/null +++ b/source4/libcli/resolve/bcast.c @@ -0,0 +1,163 @@ +/* + Unix SMB/CIFS implementation. + + broadcast name resolution module + + Copyright (C) Andrew Tridgell 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. +*/ + +#include "includes.h" +#include "system/network.h" +#include "libcli/raw/libcliraw.h" +#include "libcli/nbt/libnbt.h" +#include "libcli/composite/composite.h" + +struct bcast_state { + struct nbt_name name; + struct nbt_name_socket *nbtsock; + int num_queries; + struct nbt_name_request **queries; + struct nbt_name_query *io_queries; + const char *reply_addr; +}; + +/* + handle events during broadcast name resolution +*/ +static void bcast_handler(struct nbt_name_request *req) +{ + struct smbcli_composite *c = talloc_get_type(req->async.private, + struct smbcli_composite); + struct bcast_state *state = talloc_get_type(c->private, struct bcast_state); + int i; + + for (i=0;i<state->num_queries;i++) { + if (req == state->queries[i]) break; + } + if (i == state->num_queries) { + /* not for us?! */ + c->status = NT_STATUS_INTERNAL_ERROR; + c->state = SMBCLI_REQUEST_ERROR; + goto done; + } + + c->status = nbt_name_query_recv(req, state, &state->io_queries[i]); + if (!NT_STATUS_IS_OK(c->status)) { + c->state = SMBCLI_REQUEST_ERROR; + } else { + c->state = SMBCLI_REQUEST_DONE; + state->reply_addr = talloc_steal(state, state->io_queries[i].out.reply_addr); + } + +done: + talloc_free(state->nbtsock); + if (c->async.fn) { + c->async.fn(c); + } +} + +/* + broadcast name resolution method - async send + */ +struct smbcli_composite *resolve_name_bcast_send(struct nbt_name *name, + struct event_context *event_ctx) +{ + struct smbcli_composite *c; + struct bcast_state *state; + int i; + NTSTATUS status; + + c = talloc_zero(NULL, struct smbcli_composite); + if (c == NULL) goto failed; + + state = talloc(c, struct bcast_state); + if (state == NULL) goto failed; + + status = nbt_name_dup(state, name, &state->name); + if (!NT_STATUS_IS_OK(status)) goto failed; + + state->nbtsock = nbt_name_socket_init(state, event_ctx); + if (state->nbtsock == NULL) goto failed; + + state->num_queries = iface_count(); + + state->io_queries = talloc_array(state, struct nbt_name_query, state->num_queries); + if (!state->io_queries) goto failed; + + state->queries = talloc_array(state, struct nbt_name_request *, state->num_queries); + if (!state->queries) goto failed; + + for (i=0;i<state->num_queries;i++) { + struct ipv4_addr *ip = iface_n_bcast(i); + const char *addr = sys_inet_ntoa(*ip); + if (!addr) goto failed; + + state->io_queries[i].in.name = state->name; + state->io_queries[i].in.dest_addr = talloc_strdup(state->io_queries, addr); + if (!state->io_queries[i].in.dest_addr) goto failed; + state->io_queries[i].in.broadcast = True; + state->io_queries[i].in.wins_lookup = False; + state->io_queries[i].in.timeout = lp_parm_int(-1, "nbt", "bcastTimeout", 5); + + state->queries[i] = nbt_name_query_send(state->nbtsock, &state->io_queries[i]); + if (!state->queries[i]) goto failed; + + state->queries[i]->async.fn = bcast_handler; + state->queries[i]->async.private = c; + } + + c->state = SMBCLI_REQUEST_SEND; + c->private = state; + c->event_ctx = state->nbtsock->event_ctx; + + return c; + +failed: + talloc_free(c); + return NULL; +} + +/* + broadcast name resolution method - recv side + */ +NTSTATUS resolve_name_bcast_recv(struct smbcli_composite *c, + TALLOC_CTX *mem_ctx, const char **reply_addr) +{ + NTSTATUS status; + + status = smb_composite_wait(c); + + if (NT_STATUS_IS_OK(status)) { + struct bcast_state *state = talloc_get_type(c->private, struct bcast_state); + *reply_addr = talloc_steal(mem_ctx, state->reply_addr); + } + + talloc_free(c); + return status; +} + +/* + broadcast name resolution method - sync call + */ +NTSTATUS resolve_name_bcast(struct nbt_name *name, + TALLOC_CTX *mem_ctx, + const char **reply_addr) +{ + struct smbcli_composite *c = resolve_name_bcast_send(name, NULL); + return resolve_name_bcast_recv(c, mem_ctx, reply_addr); +} + diff --git a/source4/libcli/resolve/resolve.c b/source4/libcli/resolve/resolve.c new file mode 100644 index 0000000000..e83b11c95e --- /dev/null +++ b/source4/libcli/resolve/resolve.c @@ -0,0 +1,51 @@ +/* + Unix SMB/CIFS implementation. + + general name resolution interface + + Copyright (C) Andrew Tridgell 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. +*/ + +#include "includes.h" +#include "libcli/raw/libcliraw.h" +#include "libcli/composite/composite.h" + +/* + general name resolution - async send + */ +struct smbcli_composite *resolve_name_send(struct nbt_name *name, struct event_context *event_ctx) +{ + return resolve_name_bcast_send(name, event_ctx); +} + +/* + general name resolution method - recv side + */ +NTSTATUS resolve_name_recv(struct smbcli_composite *c, + TALLOC_CTX *mem_ctx, const char **reply_addr) +{ + return resolve_name_bcast_recv(c, mem_ctx, reply_addr); +} + +/* + general name resolution - sync call + */ +NTSTATUS resolve_name(struct nbt_name *name, TALLOC_CTX *mem_ctx, const char **reply_addr) +{ + struct smbcli_composite *c = resolve_name_send(name, NULL); + return resolve_name_recv(c, mem_ctx, reply_addr); +} |