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authorStefan Metzmacher <metze@samba.org>2010-10-11 09:41:16 +0200
committerStefan Metzmacher <metze@samba.org>2010-10-18 15:36:15 +0000
commit5f19a24c500c17de9159f721c75077a162fa8bac (patch)
tree2b3c005ccaaa131b420f1e06bbb2c7bd41fdf4b6 /source4
parent2ae3bb0b160c8c1cc0f500bfdd39125292db5f59 (diff)
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s4:nbt_server/winsclient: add a nbtd_wins_refresh_state
We now keep the nbtd_wins_refresh_state around between nbt_name_refresh_wins_send() and nbt_name_refresh_wins_recv() metze
Diffstat (limited to 'source4')
-rw-r--r--source4/nbt_server/wins/winsclient.c92
1 files changed, 50 insertions, 42 deletions
diff --git a/source4/nbt_server/wins/winsclient.c b/source4/nbt_server/wins/winsclient.c
index bbd943aca1..f6f6ff48ec 100644
--- a/source4/nbt_server/wins/winsclient.c
+++ b/source4/nbt_server/wins/winsclient.c
@@ -28,8 +28,6 @@
#include "smbd/service_task.h"
#include "param/param.h"
-static void nbtd_wins_refresh_handler(struct composite_context *c);
-
/* we send WINS client requests using our primary network interface
*/
static struct nbt_name_socket *wins_socket(struct nbtd_interface *iface)
@@ -68,46 +66,52 @@ static void nbtd_wins_start_refresh_timer(struct nbtd_iface_name *iname)
nbtd_wins_refresh, iname);
}
+struct nbtd_wins_refresh_state {
+ struct nbtd_iface_name *iname;
+ struct nbt_name_refresh_wins io;
+};
+
/*
called when a wins name refresh has completed
*/
-static void nbtd_wins_refresh_handler(struct composite_context *c)
+static void nbtd_wins_refresh_handler(struct composite_context *subreq)
{
NTSTATUS status;
- struct nbt_name_refresh_wins io;
- struct nbtd_iface_name *iname = talloc_get_type(c->async.private_data,
- struct nbtd_iface_name);
- TALLOC_CTX *tmp_ctx = talloc_new(iname);
+ struct nbtd_wins_refresh_state *state =
+ talloc_get_type_abort(subreq->async.private_data,
+ struct nbtd_wins_refresh_state);
+ struct nbtd_iface_name *iname = state->iname;
- status = nbt_name_refresh_wins_recv(c, tmp_ctx, &io);
+ status = nbt_name_refresh_wins_recv(subreq, state, &state->io);
if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
/* our WINS server is dead - start registration over
from scratch */
DEBUG(2,("Failed to refresh %s with WINS server %s\n",
- nbt_name_string(tmp_ctx, &iname->name), iname->wins_server));
- talloc_free(tmp_ctx);
+ nbt_name_string(state, &iname->name), iname->wins_server));
+ talloc_free(state);
nbtd_winsclient_register(iname);
return;
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1,("Name refresh failure with WINS for %s - %s\n",
- nbt_name_string(tmp_ctx, &iname->name), nt_errstr(status)));
- talloc_free(tmp_ctx);
+ nbt_name_string(state, &iname->name), nt_errstr(status)));
+ talloc_free(state);
return;
}
- if (io.out.rcode != 0) {
+ if (state->io.out.rcode != 0) {
DEBUG(1,("WINS server %s rejected name refresh of %s - %s\n",
- io.out.wins_server, nbt_name_string(tmp_ctx, &iname->name),
- nt_errstr(nbt_rcode_to_ntstatus(io.out.rcode))));
+ state->io.out.wins_server,
+ nbt_name_string(state, &iname->name),
+ nt_errstr(nbt_rcode_to_ntstatus(state->io.out.rcode))));
iname->nb_flags |= NBT_NM_CONFLICT;
- talloc_free(tmp_ctx);
+ talloc_free(state);
return;
}
DEBUG(4,("Refreshed name %s with WINS server %s\n",
- nbt_name_string(tmp_ctx, &iname->name), iname->wins_server));
+ nbt_name_string(state, &iname->name), iname->wins_server));
/* success - start a periodic name refresh */
iname->nb_flags |= NBT_NM_ACTIVE;
if (iname->wins_server) {
@@ -115,14 +119,14 @@ static void nbtd_wins_refresh_handler(struct composite_context *c)
* talloc_free() would generate a warning,
* so steal it into the tmp context
*/
- talloc_steal(tmp_ctx, iname->wins_server);
+ talloc_steal(state, iname->wins_server);
}
- iname->wins_server = talloc_steal(iname, io.out.wins_server);
-
+ iname->wins_server = talloc_move(iname, &state->io.out.wins_server);
iname->registration_time = timeval_current();
- nbtd_wins_start_refresh_timer(iname);
- talloc_free(tmp_ctx);
+ talloc_free(state);
+
+ nbtd_wins_start_refresh_timer(iname);
}
@@ -134,34 +138,38 @@ static void nbtd_wins_refresh(struct tevent_context *ev, struct tevent_timer *te
{
struct nbtd_iface_name *iname = talloc_get_type(private_data, struct nbtd_iface_name);
struct nbtd_interface *iface = iname->iface;
- struct nbt_name_refresh_wins io;
- struct composite_context *c;
- TALLOC_CTX *tmp_ctx = talloc_new(iname);
-
- /* setup a wins name refresh request */
- io.in.name = iname->name;
- io.in.wins_servers = (const char **)str_list_make_single(tmp_ctx, iname->wins_server);
- io.in.wins_port = lpcfg_nbt_port(iface->nbtsrv->task->lp_ctx);
- io.in.addresses = nbtd_address_list(iface, tmp_ctx);
- io.in.nb_flags = iname->nb_flags;
- io.in.ttl = iname->ttl;
+ struct nbt_name_socket *nbtsock = wins_socket(iface);
+ struct composite_context *subreq;
+ struct nbtd_wins_refresh_state *state;
- if (!io.in.addresses) {
- talloc_free(tmp_ctx);
+ state = talloc_zero(iname, struct nbtd_wins_refresh_state);
+ if (state == NULL) {
return;
}
- c = nbt_name_refresh_wins_send(wins_socket(iface), &io);
- if (c == NULL) {
- talloc_free(tmp_ctx);
+ state->iname = iname;
+
+ /* setup a wins name refresh request */
+ state->io.in.name = iname->name;
+ state->io.in.wins_servers = (const char **)str_list_make_single(state, iname->wins_server);
+ state->io.in.wins_port = lpcfg_nbt_port(iface->nbtsrv->task->lp_ctx);
+ state->io.in.addresses = nbtd_address_list(iface, state);
+ state->io.in.nb_flags = iname->nb_flags;
+ state->io.in.ttl = iname->ttl;
+
+ if (!state->io.in.addresses) {
+ talloc_free(state);
return;
}
- talloc_steal(c, io.in.addresses);
- c->async.fn = nbtd_wins_refresh_handler;
- c->async.private_data = iname;
+ subreq = nbt_name_refresh_wins_send(nbtsock, &state->io);
+ if (subreq == NULL) {
+ talloc_free(state);
+ return;
+ }
- talloc_free(tmp_ctx);
+ subreq->async.fn = nbtd_wins_refresh_handler;
+ subreq->async.private_data = state;
}