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GoodbyeDPI
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Update goodbyedpi.c

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SashaXser 2023-11-27 21:22:22 +04:00 committed by GitHub
parent 3dff8c4841
commit b259a82144
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1 changed files with 7 additions and 3 deletions
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src/goodbyedpi.c
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@ -428,12 +428,14 @@ static inline void change_window_size(const PWINDIVERT_TCPHDR ppTcpHdr, unsigned
/* HTTP method end without trailing space */
static PVOID find_http_method_end(const char *pkt, unsigned int http_frag, int *is_fragmented) {
unsigned int i;
unsigned int pkt_length = strlen(pkt);
for (i = 0; i<(sizeof(http_methods) / sizeof(*http_methods)); i++) {
unsigned int method_length = strlen(http_methods[i]);
if (memcmp(pkt, http_methods[i], method_length) == 0) {
if (is_fragmented)
*is_fragmented = 0;
return (char*)pkt + method_length - 1;
if (method_length - 1 <= pkt_length)
return (char*)pkt + method_length - 1;
}
/* Try to find HTTP method in a second part of fragmented packet */
if ((http_frag == 1 || http_frag == 2) &&
@ -443,14 +445,16 @@ static PVOID find_http_method_end(const char *pkt, unsigned int http_frag, int *
{
if (is_fragmented)
*is_fragmented = 1;
return (char*)pkt + method_length - http_frag - 1;
if (method_length - http_frag - 1 <= pkt_length)
return (char*)pkt + method_length - http_frag - 1;
}
}
return (char*)pkt;
return NULL;
}
/** Fragment and send the packet.
*
* This function cuts off the end of the packet (step=0) or