136 lines
6.7 KiB
C
136 lines
6.7 KiB
C
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#ifndef _PACKET_TRACE_H
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#define _PACKET_TRACE_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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#include "utils.h"
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#include "policy.h"
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#include <marsio.h>
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/*
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* SCE packet trace info format
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*
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* PACKET_TRACE_ON_NEW : "(Packet I/O) new packet"
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* PACKET_TRACE_ON_FREE : "(Packet I/O) free packet"
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* PACKET_TRACE_ON_CTRL : "(Session Synchronization) ${MSG}"
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*
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* Service Function Path (SFP) https://datatracker.ietf.org/doc/html/rfc7665
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*
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* PACKET_TRACE_ON_POLICY : "(Policy) rule_list: [${Rule_ID1}, ${Rule_ID2}, ...], SFP_list: [${SF_ID1}, ${SF_ID2}, ...]"
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* PACKET_TRACE_ON_CHAIN : "(Forwarder) SF_id: ${SF_ID}, fwd_type: ${FWD_TYPE}, pkt_dir: ${PKT_DIR}, pkt_type: ${PKT_TYPE}, state: ${STATE} ${ACTION}"
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*
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* ${FWD_TYPE}
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* steering
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* mirroring
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*
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* ${PKT_DIR}
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* I2E
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* E2I
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*
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* ${PKT_TYPE}
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* raw
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* decrypted
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*
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* ${STATE}
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* success
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* failure
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*
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* ${ACTION}
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* bypass
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* block
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* re-dispatch block
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* re-dispatch bypass
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* re-dispatch bypass(health SF limit)
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*
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* bypass(default)
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* bypass(invalid policy)
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*/
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static inline int rule_id_tostring(struct mutable_array *rule_ids, char *buffer, int size)
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{
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int used = 0;
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used += snprintf(buffer + used, size - used, "[");
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for (int i = 0; i < rule_ids->num; i++)
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{
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used += snprintf(buffer + used, size - used, "%lu", rule_ids->elems[i]);
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if (i < rule_ids->num - 1)
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{
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used += snprintf(buffer + used, size - used, ", ");
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}
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}
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used += snprintf(buffer + used, size - used, "]");
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return used;
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}
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static inline int sf_id_tostring(struct selected_chaining *chain, char *buffer, int size)
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{
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int used = 0;
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used += snprintf(buffer + used, size - used, "[");
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for (int i = 0; i < chain->chaining_used; i++)
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{
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used += snprintf(buffer + used, size - used, "%d", chain->chaining[i].sf_profile_id);
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if (i < chain->chaining_used - 1)
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{
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used += snprintf(buffer + used, size - used, ", ");
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}
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}
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used += snprintf(buffer + used, size - used, "]");
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return used;
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}
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#define PACKET_IO_TRACE(mr_ins, mr_buff, str) \
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{ \
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if (marsio_dp_trace_record_can_emit(mr_buff)) \
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{ \
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marsio_dp_trace_record_emit_str(mr_ins, mr_buff, "(Packet I/O)", str); \
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} \
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}
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#define PACKET_TRACE_ON_NEW(mr_ins, mr_buff) PACKET_IO_TRACE(mr_ins, mr_buff, "new packet")
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#define PACKET_TRACE_ON_FREE(mr_ins, mr_buff) PACKET_IO_TRACE(mr_ins, mr_buff, "free packet")
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#define PACKET_TRACE_ON_CTRL(mr_ins, mr_buff, state) \
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{ \
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if (marsio_dp_trace_record_can_emit(mr_buff)) \
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{ \
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marsio_dp_trace_record_emit_fmt(mr_ins, mr_buff, "(Session Synchronization)", "%s", control_packte_state_to_string(state)); \
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} \
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}
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#define PACKET_TRACE_ON_POLICY(mr_ins, mr_buff, rule_ids, chain) \
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{ \
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if (marsio_dp_trace_record_can_emit(mr_buff)) \
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{ \
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char buffer1[1024] = {0}; \
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char buffer2[1024] = {0}; \
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rule_id_tostring(rule_ids, buffer1, sizeof(buffer1)); \
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sf_id_tostring(chain, buffer2, sizeof(buffer2)); \
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marsio_dp_trace_record_emit_fmt(mr_ins, mr_buff, "(Policy)", "rule_list: %s, SFP_list: %s", buffer1, buffer2); \
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} \
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}
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#define PACKET_TRACE_ON_CHAIN(mr_ins, mr_buff, sf, meta) \
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{ \
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if (marsio_dp_trace_record_can_emit(mr_buff)) \
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{ \
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marsio_dp_trace_record_emit_fmt(mr_ins, mr_buff, "(Forwarder)", \
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"SF_id: %d, fwd_type: %s, pkt_dir: %s, pkt_type: %s, state: %s %s", \
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(sf)->sf_profile_id, \
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forward_type_tostring((sf)->sff_forward_type), \
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((meta)->direction ? "E2I" : "I2E"), \
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((meta)->is_decrypted ? "decrypted" : "raw"), \
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((sf)->sf_action == SESSION_ACTION_FORWARD ? "success" : "failure"), \
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((sf)->sf_action == SESSION_ACTION_FORWARD ? "" : action_desc_tostring((sf)->sf_action_desc))); \
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} \
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}
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#ifdef __cpluscplus
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}
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#endif
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#endif
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