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Add tools packet_parser

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This commit is contained in:
luwenpeng
2024-05-29 17:55:44 +08:00
parent ba1e651876
commit 963aa259b1
9 changed files with 299 additions and 20 deletions
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18
src/packet/tcp_utils.h
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@@ -6,6 +6,7 @@ extern "C"
{
#endif
#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>
#define __FAVOR_BSD 1
@@ -261,6 +262,23 @@ static inline void tcp_hdr_set_opt_data(struct tcphdr *hdr, const char *ptr)
memcpy((char *)hdr + sizeof(struct tcphdr), ptr, tcp_hdr_get_opt_len(hdr));
}
static inline int tcp_hdr_to_str(const struct tcphdr *hdr, char *buf, size_t size)
{
memset(buf, 0, size);
return snprintf(buf, size, "TCP: src_port=%u dst_port=%u seq=%u ack=%u hdr_len=%u flags=0x%02x(%s%s%s%s%s%s) window=%u checksum=%u urg_ptr=%u opt_len=%u",
tcp_hdr_get_src_port(hdr), tcp_hdr_get_dst_port(hdr),
tcp_hdr_get_seq(hdr), tcp_hdr_get_ack(hdr),
tcp_hdr_get_hdr_len(hdr), tcp_hdr_get_flags(hdr),
tcp_hdr_get_urg_flag(hdr) ? "URG " : "",
tcp_hdr_get_ack_flag(hdr) ? "ACK " : "",
tcp_hdr_get_push_flag(hdr) ? "PSH " : "",
tcp_hdr_get_rst_flag(hdr) ? "RST " : "",
tcp_hdr_get_syn_flag(hdr) ? "SYN " : "",
tcp_hdr_get_fin_flag(hdr) ? "FIN " : "",
tcp_hdr_get_window(hdr), tcp_hdr_get_checksum(hdr),
tcp_hdr_get_urg_ptr(hdr), tcp_hdr_get_opt_len(hdr));
}
#ifdef __cplusplus
}
#endif