+++ /dev/null
-/*
- * traffic-analyzer VFS module. Measure the smb traffic users create
- * on the net.
- *
- * Copyright (C) Holger Hetterich, 2008
- * Copyright (C) Jeremy Allison, 2008
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "includes.h"
-
-/* abstraction for the send_over_network function */
-
-enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
-
-#define LOCAL_PATHNAME "/var/tmp/stadsocket"
-
-static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
-
-static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
-{
- connection_struct *conn = handle->conn;
- const char *Mode;
- Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
- "internet_socket");
- if (strstr(Mode,"unix_domain_socket")) {
- return UNIX_DOMAIN_SOCKET;
- } else {
- return INTERNET_SOCKET;
- }
-}
-
-
-/* Connect to an internet socket */
-
-static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
- const char *name, uint16_t port)
-{
- /* Create a streaming Socket */
- int sockfd = -1;
- struct addrinfo hints;
- struct addrinfo *ailist = NULL;
- struct addrinfo *res = NULL;
- int ret;
-
- ZERO_STRUCT(hints);
- /* By default make sure it supports TCP. */
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_ADDRCONFIG;
-
- ret = getaddrinfo(name,
- NULL,
- &hints,
- &ailist);
-
- if (ret) {
- DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
- "getaddrinfo failed for name %s [%s]\n",
- name,
- gai_strerror(ret) ));
- return -1;
- }
-
- DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
- "Port: %i\n", name, port));
-
- for (res = ailist; res; res = res->ai_next) {
- struct sockaddr_storage ss;
-
- if (!res->ai_addr || res->ai_addrlen == 0) {
- continue;
- }
-
- ZERO_STRUCT(ss);
- memcpy(&ss, res->ai_addr, res->ai_addrlen);
-
- sockfd = open_socket_out(SOCK_STREAM, &ss, port, 10000);
- if (sockfd != -1) {
- break;
- }
- }
-
- if (ailist) {
- freeaddrinfo(ailist);
- }
-
- if (sockfd == -1) {
- DEBUG(1, ("smb_traffic_analyzer: unable to create "
- "socket, error is %s",
- strerror(errno)));
- return -1;
- }
-
- return sockfd;
-}
-
-/* Connect to a unix domain socket */
-
-static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
- const char *name)
-{
- /* Create the socket to stad */
- int len, sock;
- struct sockaddr_un remote;
-
- DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
- "Unix domain socket mode. Using %s\n",
- name ));
-
- if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
- DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
- "Couldn't create socket, "
- "make sure stad is running!\n"));
- }
- remote.sun_family = AF_UNIX;
- strlcpy(remote.sun_path, name,
- sizeof(remote.sun_path));
- len=strlen(remote.sun_path) + sizeof(remote.sun_family);
- if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
- DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
- "Could not connect to "
- "socket, make sure\nstad is running!\n"));
- close(sock);
- return -1;
- }
- return sock;
-}
-
-/* Private data allowing shared connection sockets. */
-
-struct refcounted_sock {
- struct refcounted_sock *next, *prev;
- char *name;
- uint16_t port;
- int sock;
- unsigned int ref_count;
-};
-
-/* Send data over a socket */
-
-static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
- ssize_t result,
- const char *file_name,
- bool Write)
-{
- struct refcounted_sock *rf_sock = NULL;
- struct timeval tv;
- time_t tv_sec;
- struct tm *tm = NULL;
- int seconds;
- char *str = NULL;
- char *username = NULL;
- const char *anon_prefix = NULL;
- size_t len;
-
- SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
-
- if (rf_sock == NULL || rf_sock->sock == -1) {
- DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
- "closed\n"));
- return;
- }
-
- GetTimeOfDay(&tv);
- tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
- tm = localtime(&tv_sec);
- if (!tm) {
- return;
- }
- seconds=(float) (tv.tv_usec / 1000);
-
- /* check if anonymization is required */
-
- anon_prefix=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",\
- "anonymize_prefix", NULL );
- if (anon_prefix!=NULL) {
- username = talloc_asprintf(talloc_tos(),
- "%s%i",
- anon_prefix,
- str_checksum(
- handle->conn->server_info->sanitized_username ) );
- } else {
- username = handle->conn->server_info->sanitized_username;
- }
-
- if (!username) {
- return;
- }
-
- str = talloc_asprintf(talloc_tos(),
- "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
- "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
- (unsigned int)result,
- username,
- pdb_get_domain(handle->conn->server_info->sam_account),
- Write ? 'W' : 'R',
- handle->conn->connectpath,
- file_name,
- tm->tm_year+1900,
- tm->tm_mon+1,
- tm->tm_mday,
- tm->tm_hour,
- tm->tm_min,
- tm->tm_sec,
- (int)seconds);
-
- if (!str) {
- return;
- }
-
- len = strlen(str);
-
- DEBUG(10, ("smb_traffic_analyzer_send_data_socket: sending %s\n",
- str));
- if (write_data(rf_sock->sock, str, len) != len) {
- DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
- "error sending data to socket!\n"));
- return ;
- }
-}
-
-static struct refcounted_sock *sock_list;
-
-static void smb_traffic_analyzer_free_data(void **pptr)
-{
- struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
- if (rf_sock == NULL) {
- return;
- }
- rf_sock->ref_count--;
- if (rf_sock->ref_count != 0) {
- return;
- }
- if (rf_sock->sock != -1) {
- close(rf_sock->sock);
- }
- DLIST_REMOVE(sock_list, rf_sock);
- TALLOC_FREE(rf_sock);
-}
-
-static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
- const char *service,
- const char *user)
-{
- connection_struct *conn = handle->conn;
- enum sock_type st = smb_traffic_analyzer_connMode(handle);
- struct refcounted_sock *rf_sock = NULL;
- const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
- lp_parm_const_string(SNUM(conn),
- "smb_traffic_analyzer",
- "host", "localhost");
- uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
- atoi( lp_parm_const_string(SNUM(conn),
- "smb_traffic_analyzer", "port", "9430"));
-
- /* Are we already connected ? */
- for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
- if (port == rf_sock->port &&
- (strcmp(name, rf_sock->name) == 0)) {
- break;
- }
- }
-
- /* If we're connected already, just increase the
- * reference count. */
- if (rf_sock) {
- rf_sock->ref_count++;
- } else {
- /* New connection. */
- rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
- if (rf_sock == NULL) {
- errno = ENOMEM;
- return -1;
- }
- rf_sock->name = talloc_strdup(rf_sock, name);
- if (rf_sock->name == NULL) {
- TALLOC_FREE(rf_sock);
- errno = ENOMEM;
- return -1;
- }
- rf_sock->port = port;
- rf_sock->ref_count = 1;
-
- if (st == UNIX_DOMAIN_SOCKET) {
- rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
- name);
- } else {
-
- rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
- name,
- port);
- }
- if (rf_sock->sock == -1) {
- TALLOC_FREE(rf_sock);
- return -1;
- }
- DLIST_ADD(sock_list, rf_sock);
- }
-
- /* Store the private data. */
- SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
- struct refcounted_sock, return -1);
- return SMB_VFS_NEXT_CONNECT(handle, service, user);
-}
-
-/* VFS Functions: write, read, pread, pwrite for now */
-
-static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
- files_struct *fsp, void *data, size_t n)
-{
- ssize_t result;
-
- result = SMB_VFS_NEXT_READ(handle, fsp, data, n);
- DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp->fsp_name ));
-
- smb_traffic_analyzer_send_data(handle,
- result,
- fsp->fsp_name,
- false);
- return result;
-}
-
-
-static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
- files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
-{
- ssize_t result;
-
- result = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
-
- DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n", fsp->fsp_name ));
-
- smb_traffic_analyzer_send_data(handle,
- result,
- fsp->fsp_name,
- false);
-
- return result;
-}
-
-static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
- files_struct *fsp, const void *data, size_t n)
-{
- ssize_t result;
-
- result = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
-
- DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n", fsp->fsp_name ));
-
- smb_traffic_analyzer_send_data(handle,
- result,
- fsp->fsp_name,
- true);
- return result;
-}
-
-static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
- files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
-{
- ssize_t result;
-
- result = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
-
- DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", fsp->fsp_name ));
-
- smb_traffic_analyzer_send_data(handle,
- result,
- fsp->fsp_name,
- true);
- return result;
-}
-
-/* VFS operations we use */
-
-static vfs_op_tuple smb_traffic_analyzer_tuples[] = {
-
- {SMB_VFS_OP(smb_traffic_analyzer_connect), SMB_VFS_OP_CONNECT,
- SMB_VFS_LAYER_LOGGER},
- {SMB_VFS_OP(smb_traffic_analyzer_read), SMB_VFS_OP_READ,
- SMB_VFS_LAYER_LOGGER},
- {SMB_VFS_OP(smb_traffic_analyzer_pread), SMB_VFS_OP_PREAD,
- SMB_VFS_LAYER_LOGGER},
- {SMB_VFS_OP(smb_traffic_analyzer_write), SMB_VFS_OP_WRITE,
- SMB_VFS_LAYER_LOGGER},
- {SMB_VFS_OP(smb_traffic_analyzer_pwrite), SMB_VFS_OP_PWRITE,
- SMB_VFS_LAYER_LOGGER},
- {SMB_VFS_OP(NULL),SMB_VFS_OP_NOOP,SMB_VFS_LAYER_NOOP}
-};
-
-/* Module initialization */
-
-NTSTATUS vfs_smb_traffic_analyzer_init(void)
-{
- NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, \
- "smb_traffic_analyzer", smb_traffic_analyzer_tuples);
-
- if (!NT_STATUS_IS_OK(ret)) {
- return ret;
- }
-
- vfs_smb_traffic_analyzer_debug_level =
- debug_add_class("smb_traffic_analyzer");
-
- if (vfs_smb_traffic_analyzer_debug_level == -1) {
- vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
- DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
- "debugging class!\n"));
- } else {
- DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
- "'smb_traffic_analyzer': %d\n", \
- vfs_smb_traffic_analyzer_debug_level));
- }
-
- return ret;
-}
git.samba.org / samba.git / blobdiff