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phusluphuslu
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split src/nginx_ssl_fingerprint.c
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3 files changed

+250
-243
lines changed

3 files changed

+250
-243
lines changed

‎config

+1
Original file line numberDiff line numberDiff line change
@@ -9,6 +9,7 @@ STREAM_MODULES="ngx_stream_ssl_fingerprint_preread_module $STREAM_MODULES"
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HTTP_MODULES="$HTTP_MODULES ngx_http_ssl_fingerprint_module"
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NGX_ADDON_SRCS="$NGX_ADDON_SRCS \
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$ngx_addon_dir/src/nginx_ssl_fingerprint.c \
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$ngx_addon_dir/src/ngx_stream_ssl_fingerprint_preread_module.c \
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$ngx_addon_dir/src/ngx_http_ssl_fingerprint_module.c
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"

‎src/nginx_ssl_fingerprint.c

+248
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,248 @@
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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#include <ngx_log.h>
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#include <ngx_http_v2.h>
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static inline
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unsigned char *append_uint8(unsigned char* dst, uint8_t n)
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{
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if (n < 10) {
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*dst = n + '0';
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dst++;
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} else if (n < 100) {
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 2;
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} else {
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 3;
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}
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return dst;
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}
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static inline
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unsigned char *append_uint16(unsigned char* dst, uint16_t n)
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{
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if (n < 10) {
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*dst = n + '0';
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dst++;
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} else if (n < 100) {
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 2;
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} else if (n < 1000) {
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 3;
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} else if (n < 10000) {
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 4;
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} else {
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 5;
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}
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return dst;
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}
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static inline
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unsigned char *append_uint32(unsigned char* dst, uint32_t n)
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{
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if (n < 10) {
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*dst = n + '0';
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dst++;
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} else if (n < 100) {
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 2;
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} else if (n < 1000) {
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 3;
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} else if (n < 10000) {
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 4;
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} else if (n < 100000) {
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 5;
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} else if (n < 1000000) {
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*(dst+5) = n % 10 + '0';
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n /= 10;
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 6;
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} else if (n < 10000000) {
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*(dst+6) = n % 10 + '0';
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n /= 10;
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*(dst+5) = n % 10 + '0';
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n /= 10;
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 7;
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} else if (n < 100000000) {
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*(dst+7) = n % 10 + '0';
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n /= 10;
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*(dst+6) = n % 10 + '0';
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n /= 10;
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*(dst+5) = n % 10 + '0';
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n /= 10;
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 8;
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} else if (n < 1000000000) {
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*(dst+8) = n % 10 + '0';
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n /= 10;
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*(dst+7) = n % 10 + '0';
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n /= 10;
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*(dst+6) = n % 10 + '0';
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n /= 10;
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*(dst+5) = n % 10 + '0';
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n /= 10;
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 9;
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} else {
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*(dst+9) = n % 10 + '0';
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n /= 10;
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*(dst+8) = n % 10 + '0';
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n /= 10;
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*(dst+7) = n % 10 + '0';
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n /= 10;
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*(dst+6) = n % 10 + '0';
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n /= 10;
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*(dst+5) = n % 10 + '0';
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n /= 10;
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*(dst+4) = n % 10 + '0';
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n /= 10;
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*(dst+3) = n % 10 + '0';
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n /= 10;
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*(dst+2) = n % 10 + '0';
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n /= 10;
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*(dst+1) = n % 10 + '0';
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*dst = n / 10 + '0';
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dst += 10;
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}
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return dst;
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}
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int ngx_http2_fingerprint(ngx_connection_t *c, ngx_http_v2_connection_t *h2c, ngx_pool_t *pool, ngx_str_t *fingerprint)
187+
{
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unsigned char *pstr = NULL;
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unsigned short n = 0;
190+
size_t i;
191+
192+
if (!h2c) {
193+
return NGX_DECLINED;
194+
}
195+
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n = 4 + h2c->fp_settings.len * 3 + 10 + h2c->fp_priorities.len * 2 + h2c->fp_pseudoheaders.len * 2;
197+
fingerprint->data = ngx_pnalloc(pool, n);
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pstr = fingerprint->data;
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#if (NGX_DEBUG)
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ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "http2 fingerprint alloc bytes: [%d]\n", n);
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#endif
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/* setting */
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for (i = 0; i < h2c->fp_settings.len; i+=5) {
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pstr = append_uint8(pstr, h2c->fp_settings.data[i]);
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*pstr++ = ':';
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pstr = append_uint32(pstr, *(uint32_t*)(h2c->fp_settings.data+i+1));
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*pstr++ = ';';
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}
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*(pstr-1) = '|';
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/* windows update */
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pstr = append_uint32(pstr, h2c->fp_windowupdate);
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*pstr++ = '|';
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/* priorities */
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for (i = 0; i < h2c->fp_priorities.len; i+=4) {
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pstr = append_uint8(pstr, h2c->fp_priorities.data[i]);
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*pstr++ = ':';
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pstr = append_uint8(pstr, h2c->fp_priorities.data[i+1]);
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*pstr++ = ':';
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pstr = append_uint8(pstr, h2c->fp_priorities.data[i+2]);
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*pstr++ = ':';
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pstr = append_uint16(pstr, (uint16_t)h2c->fp_priorities.data[i+3]+1);
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*pstr++ = ',';
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}
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*(pstr-1) = '|';
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/* fp_pseudoheaders */
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for (i = 0; i < h2c->fp_pseudoheaders.len; i++) {
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*pstr++ = h2c->fp_pseudoheaders.data[i];
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*pstr++ = ',';
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}
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/* null terminator */
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*--pstr = 0;
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fingerprint->len = pstr - fingerprint->data;
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h2c->fp_fingerprinted = 1;
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#if (NGX_DEBUG)
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ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "http2 fingerprint: [%V]\n", fingerprint);
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#endif
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return NGX_OK;
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}

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