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checkpoint. udp listener clde split out.

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This commit is contained in:
Michael Graff
1999-01-20 03:54:54 +00:00
parent 603f92eefd
commit 47db0e1d06
5 changed files with 354 additions and 183 deletions
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187
bin/named/server.c
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@@ -46,169 +46,20 @@
#include <arpa/inet.h>
#include "udpclient.h"
isc_mem_t *mctx = NULL;
#define INPUT_BUFFER_SIZE (64 * 1024) /* 64k */
typedef struct {
char name[16]; /* socket human-printable name */
char *buf; /* input buffer */
isc_mem_t *mctx; /* memory context used to allocate */
} client_ctx_t;
static client_ctx_t *client_ctx_allocate(isc_mem_t *mctx);
static void client_ctx_free(client_ctx_t *ctx);
static void my_send(isc_task_t *task, isc_event_t *event);
static void udp_recv(isc_task_t *task, isc_event_t *event);
static client_ctx_t *
client_ctx_allocate(isc_mem_t *mctx)
{
client_ctx_t *ctx;
ctx = isc_mem_get(mctx, sizeof(client_ctx_t));
if (ctx == NULL)
return (NULL);
ctx->buf = isc_mem_get(mctx, INPUT_BUFFER_SIZE);
if (ctx->buf == NULL) {
isc_mem_put(mctx, ctx, sizeof(client_ctx_t));
return (NULL);
}
ctx->name[0] = '\0';
ctx->mctx = mctx;
return (ctx);
}
static void
client_ctx_free(client_ctx_t *ctx)
{
isc_mem_put(ctx->mctx, ctx->buf, INPUT_BUFFER_SIZE);
isc_mem_put(ctx->mctx, ctx, sizeof(client_ctx_t));
}
typedef struct dns_message {
unsigned int id;
unsigned int flags;
unsigned int qcount;
unsigned int ancount;
unsigned int aucount;
unsigned int adcount;
dns_namelist_t question;
dns_namelist_t answer;
dns_namelist_t authority;
dns_namelist_t additional;
} dns_message_t; /* XXX Should be common? */
/*
* XXX These is in wire_test.c right now.
*/
void getmessage(dns_message_t *message, isc_buffer_t *source,
isc_buffer_t *target);
dns_result_t printmessage(dns_message_t *message);
static void
dump_packet(char *buf, u_int len)
{
extern dns_decompress_t dctx;
char t[5000]; /* XXX */
dns_message_t message;
dns_result_t result;
isc_buffer_t source, target;
dctx.allowed = DNS_COMPRESS_GLOBAL14;
dns_name_init(&dctx.owner_name, NULL);
isc_buffer_init(&source, buf, len, ISC_BUFFERTYPE_BINARY);
isc_buffer_add(&source, len);
isc_buffer_init(&target, t, sizeof(t), ISC_BUFFERTYPE_BINARY);
getmessage(&message, &source, &target);
result = printmessage(&message);
if (result != DNS_R_SUCCESS)
printf("printmessage() failed: %s\n",
dns_result_totext(result));
}
static void
udp_recv(isc_task_t *task, isc_event_t *event)
{
isc_socket_t *sock;
isc_socketevent_t *dev;
client_ctx_t *ctx;
sock = event->sender;
dev = (isc_socketevent_t *)event;
ctx = (client_ctx_t *)(event->arg);
printf("Task %s (sock %p, base %p, length %d, n %d, result %d)\n",
(char *)(event->arg), sock,
dev->region.base, dev->region.length,
dev->n, dev->result);
printf("\tFrom: %s port %d\n",
inet_ntoa(dev->address.type.sin.sin_addr),
ntohs(dev->address.type.sin.sin_port));
if (dev->result != ISC_R_SUCCESS) {
isc_socket_detach(&sock);
client_ctx_free(ctx);
isc_event_free(&event);
/* destroy task */
return;
}
/*
* Call the dump routine to print this baby out
*/
dump_packet(ctx->buf, dev->n);
isc_socket_recv(sock, &dev->region, ISC_FALSE,
task, udp_recv, event->arg);
isc_mem_stats(ctx->mctx, stdout);
isc_event_free(&event);
}
static void
my_send(isc_task_t *task, isc_event_t *event)
{
isc_socket_t *sock;
isc_socketevent_t *dev;
sock = event->sender;
dev = (isc_socketevent_t *)event;
printf("my_send: %s task %p\n\t(sock %p, base %p, length %d, n %d, result %d)\n",
(char *)(event->arg), task, sock,
dev->region.base, dev->region.length,
dev->n, dev->result);
isc_mem_put(event->mctx, dev->region.base, dev->region.length);
isc_event_free(&event);
}
int
main(int argc, char *argv[])
{
isc_taskmgr_t *manager = NULL;
isc_task_t **tasks;
unsigned int workers;
isc_socketmgr_t *socketmgr;
isc_socket_t *so1;
isc_sockaddr_t sockaddr;
unsigned int addrlen;
client_ctx_t **ctxs;
unsigned int i;
isc_region_t region;
udp_listener_t *l;
memset(&sockaddr, 0, sizeof(sockaddr));
sockaddr.type.sin.sin_port = htons(5544);
@@ -222,11 +73,6 @@ main(int argc, char *argv[])
RUNTIME_CHECK(isc_mem_create(0, 0, &mctx) == ISC_R_SUCCESS);
tasks = isc_mem_get(mctx, sizeof(isc_task_t *) * workers);
RUNTIME_CHECK(tasks != NULL);
ctxs = isc_mem_get(mctx, sizeof(client_ctx_t *) * workers);
RUNTIME_CHECK(ctxs != NULL);
RUNTIME_CHECK(isc_taskmgr_create(mctx, workers, 0, &manager) ==
ISC_R_SUCCESS);
@@ -246,30 +92,9 @@ main(int argc, char *argv[])
RUNTIME_CHECK(isc_socket_bind(so1, &sockaddr,
(int)addrlen) == ISC_R_SUCCESS);
/*
* Create all the listening tasks and set up the initial read.
*/
for (i = 0 ; i < workers ; i++) {
tasks[i] = NULL;
RUNTIME_CHECK(isc_task_create(manager, NULL, 0, &tasks[i])
== ISC_R_SUCCESS);
/*
* Allocate client context and set its name.
*/
ctxs[i] = client_ctx_allocate(mctx);
RUNTIME_CHECK(ctxs[i] != NULL);
region.length = INPUT_BUFFER_SIZE;
region.base = ctxs[i]->buf;
sprintf(ctxs[i]->name, "%u", i);
printf("recv started for task %s\n", ctxs[i]->name);
RUNTIME_CHECK(isc_socket_recv(so1, &region,
ISC_FALSE, tasks[i],
udp_recv, ctxs[i])
== ISC_R_SUCCESS);
}
l = udp_listener_allocate(mctx, workers);
RUNTIME_CHECK(udp_listener_start(l, so1, manager, workers,
workers, 0) == ISC_R_SUCCESS);
isc_mem_stats(mctx, stdout);