mars/kernel/sy_old/sy_net.c

119 lines
2.4 KiB
C

// (c) 2011 Thomas Schoebel-Theuer / 1&1 Internet AG
//#define BRICK_DEBUGGING
//#define MARS_DEBUGGING
//#define IO_DEBUGGING
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include "strategy.h"
#include "../mars_net.h"
static
char *_mars_translate_hostname(const char *name)
{
struct mars_global *global = mars_global;
char *res = brick_strdup(name);
struct mars_dent *test;
char *tmp;
if (unlikely(!global)) {
goto done;
}
for (tmp = res; *tmp; tmp++) {
if (*tmp == ':') {
*tmp = '\0';
break;
}
}
tmp = path_make("/mars/ips/ip-%s", res);
if (unlikely(!tmp)) {
goto done;
}
test = mars_find_dent(global, tmp);
if (test && test->new_link) {
MARS_DBG("'%s' => '%s'\n", tmp, test->new_link);
brick_string_free(res);
res = brick_strdup(test->new_link);
} else {
MARS_DBG("no translation for '%s'\n", tmp);
}
brick_string_free(tmp);
done:
return res;
}
int mars_send_dent_list(struct mars_socket *sock, struct list_head *anchor)
{
struct list_head *tmp;
struct mars_dent *dent;
int status = 0;
for (tmp = anchor->next; tmp != anchor; tmp = tmp->next) {
dent = container_of(tmp, struct mars_dent, dent_link);
status = mars_send_struct(sock, dent, mars_dent_meta);
if (status < 0)
break;
}
if (status >= 0) { // send EOR
status = mars_send_struct(sock, NULL, mars_dent_meta);
}
return status;
}
EXPORT_SYMBOL_GPL(mars_send_dent_list);
int mars_recv_dent_list(struct mars_socket *sock, struct list_head *anchor)
{
int status;
for (;;) {
struct mars_dent *dent = brick_zmem_alloc(sizeof(struct mars_dent));
if (!dent)
return -ENOMEM;
//MARS_IO("\n");
INIT_LIST_HEAD(&dent->dent_link);
INIT_LIST_HEAD(&dent->brick_list);
status = mars_recv_struct(sock, dent, mars_dent_meta);
if (status <= 0) {
mars_free_dent(dent);
goto done;
}
list_add_tail(&dent->dent_link, anchor);
}
done:
return status;
}
EXPORT_SYMBOL_GPL(mars_recv_dent_list);
////////////////// module init stuff /////////////////////////
int __init init_sy_net(void)
{
MARS_INF("init_sy_net()\n");
mars_translate_hostname = _mars_translate_hostname;
return 0;
}
void exit_sy_net(void)
{
MARS_INF("exit_sy_net()\n");
}
#ifndef CONFIG_MARS_HAVE_BIGMODULE
MODULE_DESCRIPTION("MARS network infrastructure");
MODULE_AUTHOR("Thomas Schoebel-Theuer <tst@1und1.de>");
MODULE_LICENSE("GPL");
module_init(init_sy_net);
module_exit(exit_sy_net);
#endif