Feature #478 » 0001-Custom-logging-feature-for-log-httplog.patch
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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* \author Ignacio Sanchez <sanchezmartin.ji@gmail.com>
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*
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* Implements http logging portion of the engine.
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*/
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tmm_modules[TMM_LOGHTTPLOG6].RegisterTests = NULL;
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}
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#define LOG_HTTP_MAXN_NODES 64
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#define LOG_HTTP_NODE_STRLEN 256
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#define TIMESTAMP_DEFAULT_FORMAT "%b %d, %Y; %H:%M:%S"
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#define LOG_HTTP_CF_NONE "-"
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#define LOG_HTTP_CF_LITERAL '%'
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#define LOG_HTTP_CF_REQUEST_HOST 'h'
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#define LOG_HTTP_CF_REQUEST_PROTOCOL 'H'
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#define LOG_HTTP_CF_REQUEST_METHOD 'm'
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#define LOG_HTTP_CF_REQUEST_URI 'u'
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#define LOG_HTTP_CF_REQUEST_TIME 't'
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#define LOG_HTTP_CF_REQUEST_HEADER 'i'
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#define LOG_HTTP_CF_REQUEST_COOKIE 'C'
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#define LOG_HTTP_CF_RESPONSE_STATUS 's'
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#define LOG_HTTP_CF_RESPONSE_HEADER 'o'
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#define LOG_HTTP_CF_RESPONSE_LEN 'B'
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#define LOG_HTTP_CF_TIMESTAMP 't'
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#define LOG_HTTP_CF_TIMESTAMP_U 'z'
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#define LOG_HTTP_CF_CLIENT_IP 'a'
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#define LOG_HTTP_CF_SERVER_IP 'A'
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#define LOG_HTTP_CF_CLIENT_PORT 'p'
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#define LOG_HTTP_CF_SERVER_PORT 'P'
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typedef struct LogHttpCustomFormatNode_ {
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uint32_t type; /** Node format type. ie: LOG_HTTP_CF_LITERAL, LOG_HTTP_CF_REQUEST_HEADER */
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char data[LOG_HTTP_NODE_STRLEN]; /** optional data. ie: http header name */
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} LogHttpCustomFormatNode;
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typedef struct LogHttpFileCtx_ {
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LogFileCtx *file_ctx;
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uint32_t flags; /** Store mode */
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uint32_t cf_n; /** Total number of custom string format nodes */
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LogHttpCustomFormatNode *cf_nodes[LOG_HTTP_MAXN_NODES]; /** Array of custom format string nodes */
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} LogHttpFileCtx;
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#define LOG_HTTP_DEFAULT 0
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#define LOG_HTTP_EXTENDED 1
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#define LOG_HTTP_CUSTOM 2
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typedef struct LogHttpLogThread_ {
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LogHttpFileCtx *httplog_ctx;
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t->tm_min, t->tm_sec, (uint32_t) ts->tv_usec);
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}
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/* Custom format logging */
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static void LogHttpLogCustom(LogHttpLogThread *aft, htp_tx_t *tx, const struct timeval *ts, char *srcip, Port sp, char *dstip, Port dp){
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LogHttpFileCtx *httplog_ctx = aft->httplog_ctx;
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uint32_t i;
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char buf[128];
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htp_header_t *h_request_hdr = NULL;
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htp_header_t *h_response_hdr = NULL;
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time_t time = ts->tv_sec;
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struct tm local_tm;
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struct tm *timestamp = (struct tm *)SCLocalTime(time, &local_tm);
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for (i=0; i<httplog_ctx->cf_n; i++) {
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switch (httplog_ctx->cf_nodes[i]->type){
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case LOG_HTTP_CF_LITERAL:
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/* LITERAL */
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)httplog_ctx->cf_nodes[i]->data,strlen(httplog_ctx->cf_nodes[i]->data));
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break;
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case LOG_HTTP_CF_TIMESTAMP:
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/* TIMESTAMP */
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if (httplog_ctx->cf_nodes[i]->data=='\0') {
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strftime(buf,62,TIMESTAMP_DEFAULT_FORMAT, timestamp);
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} else {
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strftime(buf,62,httplog_ctx->cf_nodes[i]->data, timestamp);
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}
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)buf,strlen(buf));
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break;
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case LOG_HTTP_CF_TIMESTAMP_U:
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/* TIMESTAMP USECONDS */
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snprintf(buf,62,"%06u", (unsigned int) ts->tv_usec);
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)buf,strlen(buf));
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break;
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case LOG_HTTP_CF_CLIENT_IP:
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/* CLIENT IP ADDRESS */
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)srcip,strlen(srcip));
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break;
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case LOG_HTTP_CF_SERVER_IP:
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/* SERVER IP ADDRESS */
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)dstip,strlen(dstip));
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break;
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case LOG_HTTP_CF_CLIENT_PORT:
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/* CLIENT PORT */
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MemBufferWriteString(aft->buffer,"%" PRIu16 "",sp);
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break;
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case LOG_HTTP_CF_SERVER_PORT:
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/* SERVER PORT */
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MemBufferWriteString(aft->buffer,"%" PRIu16 "",dp);
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break;
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case LOG_HTTP_CF_REQUEST_METHOD:
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/* METHOD */
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if (tx->request_method != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)bstr_ptr(tx->request_method), bstr_len(tx->request_method));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_REQUEST_URI:
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/* URI */
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if (tx->request_uri != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)bstr_ptr(tx->request_uri), bstr_len(tx->request_uri));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_REQUEST_HOST:
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/* HOSTNAME */
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if (tx->parsed_uri != NULL &&
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tx->parsed_uri->hostname != NULL)
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{
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size, (uint8_t *)bstr_ptr(tx->parsed_uri->hostname), bstr_len(tx->parsed_uri->hostname));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_REQUEST_PROTOCOL:
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/* PROTOCOL */
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if (tx->request_protocol != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->request_protocol),
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bstr_len(tx->request_protocol));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_REQUEST_HEADER:
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/* REQUEST HEADER */
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if (tx->request_headers != NULL) {
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h_request_hdr = table_getc(tx->request_headers, httplog_ctx->cf_nodes[i]->data);
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}
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if (h_request_hdr != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(h_request_hdr->value),
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bstr_len(h_request_hdr->value));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_RESPONSE_STATUS:
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/* RESPONSE STATUS */
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if (tx->response_status != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->response_status),
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bstr_len(tx->response_status));
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/* Redirect? */
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if ((tx->response_status_number > 300) && ((tx->response_status_number) < 303)) {
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htp_header_t *h_location = table_getc(tx->response_headers, "location");
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if (h_location != NULL) {
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MemBufferWriteString(aft->buffer, "(");
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(h_location->value),
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bstr_len(h_location->value));
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MemBufferWriteString(aft->buffer, ")");
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}
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}
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_RESPONSE_HEADER:
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/* RESPONSE HEADER */
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if (tx->response_headers != NULL) {
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h_response_hdr = table_getc(tx->response_headers, httplog_ctx->cf_nodes[i]->data);
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}
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if (h_response_hdr != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(h_response_hdr->value),
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bstr_len(h_response_hdr->value));
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} else {
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MemBufferWriteString(aft->buffer, LOG_HTTP_CF_NONE);
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}
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break;
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case LOG_HTTP_CF_RESPONSE_LEN:
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/* RESPONSE LEN */
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MemBufferWriteString(aft->buffer, "%"PRIuMAX"", (uintmax_t)tx->response_message_len);
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break;
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}
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}
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MemBufferWriteString(aft->buffer, "\n");
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}
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static void LogHttpLogExtended(LogHttpLogThread *aft, htp_tx_t *tx)
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{
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MemBufferWriteString(aft->buffer, " [**] ");
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| ... | ... | |
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/* reset */
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MemBufferReset(aft->buffer);
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/* time */
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MemBufferWriteString(aft->buffer, "%s ", timebuf);
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/* hostname */
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if (tx->parsed_uri != NULL &&
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tx->parsed_uri->hostname != NULL)
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{
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->parsed_uri->hostname),
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bstr_len(tx->parsed_uri->hostname));
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if (hlog->flags & LOG_HTTP_CUSTOM) {
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LogHttpLogCustom(aft, tx, &p->ts, srcip, sp, dstip, dp);
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} else {
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MemBufferWriteString(aft->buffer, "<hostname unknown>");
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}
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MemBufferWriteString(aft->buffer, " [**] ");
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/* time */
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MemBufferWriteString(aft->buffer, "%s ", timebuf);
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/* uri */
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if (tx->request_uri != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->request_uri),
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bstr_len(tx->request_uri));
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}
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MemBufferWriteString(aft->buffer, " [**] ");
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/* hostname */
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if (tx->parsed_uri != NULL &&
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tx->parsed_uri->hostname != NULL)
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{
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->parsed_uri->hostname),
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bstr_len(tx->parsed_uri->hostname));
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} else {
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MemBufferWriteString(aft->buffer, "<hostname unknown>");
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}
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MemBufferWriteString(aft->buffer, " [**] ");
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/* user agent */
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htp_header_t *h_user_agent = NULL;
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if (tx->request_headers != NULL) {
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h_user_agent = table_getc(tx->request_headers, "user-agent");
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}
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if (h_user_agent != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(h_user_agent->value),
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bstr_len(h_user_agent->value));
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} else {
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MemBufferWriteString(aft->buffer, "<useragent unknown>");
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}
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if (hlog->flags & LOG_HTTP_EXTENDED) {
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LogHttpLogExtended(aft, tx);
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}
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/* uri */
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if (tx->request_uri != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(tx->request_uri),
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bstr_len(tx->request_uri));
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}
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MemBufferWriteString(aft->buffer, " [**] ");
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/* ip/tcp header info */
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MemBufferWriteString(aft->buffer,
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" [**] %s:%" PRIu16 " -> %s:%" PRIu16 "\n",
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srcip, sp, dstip, dp);
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/* user agent */
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htp_header_t *h_user_agent = NULL;
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if (tx->request_headers != NULL) {
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h_user_agent = table_getc(tx->request_headers, "user-agent");
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}
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if (h_user_agent != NULL) {
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PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset, aft->buffer->size,
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(uint8_t *)bstr_ptr(h_user_agent->value),
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bstr_len(h_user_agent->value));
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} else {
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MemBufferWriteString(aft->buffer, "<useragent unknown>");
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}
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if (hlog->flags & LOG_HTTP_EXTENDED) {
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LogHttpLogExtended(aft, tx);
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}
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/* ip/tcp header info */
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MemBufferWriteString(aft->buffer,
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" [**] %s:%" PRIu16 " -> %s:%" PRIu16 "\n",
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srcip, sp, dstip, dp);
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}
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aft->uri_cnt ++;
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SCMutexLock(&hlog->file_ctx->fp_mutex);
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| ... | ... | |
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OutputCtx *LogHttpLogInitCtx(ConfNode *conf)
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{
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LogFileCtx* file_ctx = LogFileNewCtx();
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const char *p, *np;
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uint32_t n;
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if(file_ctx == NULL) {
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SCLogError(SC_ERR_HTTP_LOG_GENERIC, "couldn't create new file_ctx");
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return NULL;
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| ... | ... | |
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memset(httplog_ctx, 0x00, sizeof(LogHttpFileCtx));
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httplog_ctx->file_ctx = file_ctx;
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httplog_ctx->cf_n=0;
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const char *extended = ConfNodeLookupChildValue(conf, "extended");
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if (extended == NULL) {
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httplog_ctx->flags |= LOG_HTTP_DEFAULT;
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const char *custom = ConfNodeLookupChildValue(conf, "custom");
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const char *customformat = ConfNodeLookupChildValue(conf, "customformat");
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/* If custom logging format is selected, lets parse it */
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if (custom !=NULL && customformat!=NULL && ConfValIsTrue(custom)) {
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p=customformat;
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httplog_ctx->flags |= LOG_HTTP_CUSTOM;
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for (httplog_ctx->cf_n=0; httplog_ctx->cf_n<LOG_HTTP_MAXN_NODES-1 && p && *p!='\0'; httplog_ctx->cf_n++){
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]=SCMalloc(sizeof(LogHttpCustomFormatNode));
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if (*p!='%'){
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/* Literal found in format string */
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->type=LOG_HTTP_CF_LITERAL;
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np=strchr(p,'%');
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if (np==NULL){
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n=LOG_HTTP_NODE_STRLEN-1;
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np=NULL; /* End */
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}else{
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n=np-p;
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}
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strncpy(httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data,p,n);
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data[n]='\0';
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p=np;
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} else {
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/* Non Literal found in format string */
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p++;
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if (*p=='{'){ /* Simple format char */
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np=strchr(p,'}');
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if (np!=NULL && np-p>1){
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p++;
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n=np-p;
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strncpy(httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data,p,n);
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data[n]='\0';
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p=np;
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}
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p++;
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} else {
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data[0]='\0';
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}
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->type=*p;
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if (*p=='%'){
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httplog_ctx->cf_nodes[httplog_ctx->cf_n]->type=LOG_HTTP_CF_LITERAL;
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strcpy(httplog_ctx->cf_nodes[httplog_ctx->cf_n]->data,"%");
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}
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p++;
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}
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}
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} else {
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if (ConfValIsTrue(extended)) {
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httplog_ctx->flags |= LOG_HTTP_EXTENDED;
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if (extended == NULL) {
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httplog_ctx->flags |= LOG_HTTP_DEFAULT;
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} else {
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if (ConfValIsTrue(extended)) {
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httplog_ctx->flags |= LOG_HTTP_EXTENDED;
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}
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}
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}
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OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
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if (output_ctx == NULL) {
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for (n=0; n<httplog_ctx->cf_n; n++) {
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SCFree(httplog_ctx->cf_nodes[n]);
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}
|
||
|
LogFileFreeCtx(file_ctx);
|
||
|
SCFree(httplog_ctx);
|
||
|
return NULL;
|
||
| ... | ... | |
|
static void LogHttpLogDeInitCtx(OutputCtx *output_ctx)
|
||
|
{
|
||
|
LogHttpFileCtx *httplog_ctx = (LogHttpFileCtx *)output_ctx->data;
|
||
|
uint32_t i;
|
||
|
for (i=0; i<httplog_ctx->cf_n; i++) {
|
||
|
SCFree(httplog_ctx->cf_nodes[i]);
|
||
|
}
|
||
|
LogFileFreeCtx(httplog_ctx->file_ctx);
|
||
|
SCFree(httplog_ctx);
|
||
|
SCFree(output_ctx);
|
||
| suricata.yaml.in | ||
|---|---|---|
|
filename: http.log
|
||
|
append: yes
|
||
|
#extended: yes # enable this for extended logging information
|
||
|
#custom: yes # enabled the custom logging format (defined by customformat)
|
||
|
#customformat: "%{%D-%H:%M:%S}t.%z %{X-Forwarded-For}i %H %m %h %u %s %B %a:%p -> %A:%P"
|
||
|
#filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
|
||
|
# a line based log to used with pcap file study.
|
||