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lib: Add lp_allow_local_address()

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Helper function for listing and accessing shares

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This commit is contained in:
Volker Lendecke 2022-10-21 16:45:35 +02:00
parent d9c4f94e4f
commit 9321a533cd
3 changed files with 72 additions and 0 deletions
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2
source3/include/proto.h
View File

@ -765,6 +765,8 @@ void unbecome_root(void);
/* The following definitions come from lib/smbd_shim.c */
int find_service(TALLOC_CTX *ctx, const char *service_in, char **p_service_out);
bool lp_allow_local_address(
int snum, const struct tsocket_address *local_address);
void send_stat_cache_delete_message(struct messaging_context *msg_ctx,
const char *name);
NTSTATUS can_delete_directory_fsp(files_struct *fsp);

1
source3/lib/util_sock.c
View File

@ -30,6 +30,7 @@
#include "../lib/tsocket/tsocket.h"
#include "lib/util/sys_rw.h"
#include "lib/util/sys_rw_data.h"
#include "source3/lib/util_tsock.h"
/****************************************************************************
Determine if a file descriptor is in fact a socket.

69
source3/param/service.c
View File

@ -264,3 +264,72 @@ int find_service(TALLOC_CTX *ctx, const char *service_in, char **p_service_out)
return (iService);
}
bool lp_allow_local_address(
int snum, const struct tsocket_address *local_address)
{
bool is_inet = tsocket_address_is_inet(local_address, "ip");
const char **server_addresses = lp_server_addresses(snum);
char *local = NULL;
ssize_t i;
if (!is_inet) {
return false;
}
if (server_addresses == NULL) {
return true;
}
local = tsocket_address_inet_addr_string(local_address, talloc_tos());
if (local == NULL) {
return false;
}
for (i=0; server_addresses[i] != NULL; i++) {
struct tsocket_address *server_addr = NULL;
char *server_addr_string = NULL;
bool equal;
int ret;
/*
* Go through struct tsocket_address to normalize the
* string representation
*/
ret = tsocket_address_inet_from_strings(
talloc_tos(),
"ip",
server_addresses[i],
0,
&server_addr);
if (ret == -1) {
DBG_WARNING("tsocket_address_inet_from_strings "
"failed for %s: %s, ignoring\n",
server_addresses[i],
strerror(errno));
continue;
}
server_addr_string = tsocket_address_inet_addr_string(
server_addr, talloc_tos());
TALLOC_FREE(server_addr);
if (server_addr_string == NULL) {
DBG_ERR("tsocket_address_inet_addr_string failed "
"for %s, ignoring\n",
server_addresses[i]);
continue;
}
equal = strequal(local, server_addr_string);
TALLOC_FREE(server_addr_string);
if (equal) {
TALLOC_FREE(local);
return true;
}
}
TALLOC_FREE(local);
return false;
}