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nfqws: fix reasm seq handling

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bol-van
2024-04-22 14:30:05 +03:00
parent 452d9210a6
commit 7d789f79d0
13 changed files with 24 additions and 22 deletions
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4
nfq/conntrack.h
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@@ -39,7 +39,7 @@ typedef struct
// this structure helps to reassemble continuous packets streams. it does not support out-of-orders
typedef struct {
uint8_t *packet; // allocated for size during reassemble request. requestor must know the message size.
size_t seq; // current seq number. if a packet comes with an unexpected seq - it fails reassemble session.
uint32_t seq; // current seq number. if a packet comes with an unexpected seq - it fails reassemble session.
size_t size; // expected message size. success means that we have received exactly 'size' bytes and have them in 'packet'
size_t size_present; // how many bytes already stored in 'packet'
} t_reassemble;
@@ -109,7 +109,7 @@ bool ReasmInit(t_reassemble *reasm, size_t size_requested, uint32_t seq_start);
bool ReasmResize(t_reassemble *reasm, size_t new_size);
void ReasmClear(t_reassemble *reasm);
// false means reassemble session has failed and we should ReasmClear() it
bool ReasmFeed(t_reassemble *reasm, size_t seq, const void *payload, size_t len);
bool ReasmFeed(t_reassemble *reasm, uint32_t seq, const void *payload, size_t len);
// check if it has enough space to buffer 'len' bytes
bool ReasmHasSpace(t_reassemble *reasm, size_t len);
inline static bool ReasmIsEmpty(t_reassemble *reasm) {return !reasm->size;}