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/*
* @file tfe_utils.h
* This file provides common usage marcos and helper functions.
*/
#pragma once
#include <MESA/MESA_handle_logger.h>
#include <MESA/MESA_htable.h>
#include <time.h>
#include <dirent.h> //scan_dir
#include <stdbool.h>
#define LOG_TAG_POLICY "POLICY"
#define LOG_TAG_UTILS "UTILS"
#define LOG_TAG_RAWPKT "RAW_PACKET"
#define LOG_TAG_CTRLPKT "CTRL_PACKET"
#define LOG_TAG_STABLE "SESSION_TABLE"
#define LOG_TAG_PKTIO "PACKET_IO"
#define LOG_TAG_METRICS "G_METRICS"
#define LOG_TAG_SF_METRICS "SF_METRICS"
#define LOG_TAG_SF_STATUS "SF_STATUS"
#define LOG_TAG_SCE "SCE"
#define LOG_TAG_TIMESTAMP "TIMESTAMP"
#define TFE_STRING_MAX 2048
#define TFE_PATH_MAX 256
#define TFE_SYMBOL_MAX 64
#define TFE_THREAD_MAX 128
#define TFE_FAKE_C_DEFAULT_TTL 60
#define TFE_FAKE_S_DEFAULT_TTL 65
#ifndef TFE_CONFIG_BACKLOG_DEFAULT
#define TFE_CONFIG_BACKLOG_DEFAULT 20
#endif
#define ALLOC(type, number) ((type *)calloc(sizeof(type), number))
#define FREE(p) {free(*p);*p=NULL;}
#define TFE_STRUCT_ALLOC(struct_type) __extension__ \
({ \
((struct_type) * ) __struct_ptr; \
__struct_ptr = ((struct_type) *)malloc(sizeof((struct_type))); \
__struct_ptr; \
})
#define likely(expr) __builtin_expect((expr), 1)
#define unlikely(expr) __builtin_expect((expr), 0)
#define UNUSED __attribute__((unused))
extern void * g_default_logger;
extern bool g_print_to_stderr;
#define TFE_LOG_ERROR(handler, fmt, ...) \
do \
{ \
if (g_print_to_stderr) \
{ \
fprintf(stderr, fmt "\n", ##__VA_ARGS__); \
} \
if (MESA_handle_runtime_log_level_enabled(handler, RLOG_LV_FATAL)) \
{ \
MESA_handle_runtime_log(handler, RLOG_LV_FATAL, __FUNCTION__, fmt, ##__VA_ARGS__); \
} \
} while (0)
#define TFE_LOG_INFO(handler, fmt, ...) \
do \
{ \
if (g_print_to_stderr) \
{ \
fprintf(stderr, fmt "\n", ##__VA_ARGS__); \
} \
if (MESA_handle_runtime_log_level_enabled(handler, RLOG_LV_INFO)) \
{ \
MESA_handle_runtime_log(handler, RLOG_LV_INFO, __FUNCTION__, fmt, ##__VA_ARGS__); \
} \
} while (0)
#define TFE_LOG_DEBUG(handler, fmt, ...) \
do \
{ \
if (g_print_to_stderr) \
{ \
fprintf(stderr, fmt "\n", ##__VA_ARGS__); \
} \
if (MESA_handle_runtime_log_level_enabled(handler, RLOG_LV_DEBUG)) \
{ \
MESA_handle_runtime_log(handler, RLOG_LV_DEBUG, __FUNCTION__, fmt, ##__VA_ARGS__); \
} \
} while (0)
#define CHECK_OR_EXIT(condition, fmt, ...) \
do { if(!(condition)) { TFE_LOG_ERROR(g_default_logger, fmt, ##__VA_ARGS__); exit(EXIT_FAILURE); } } while(0) \
#define DIE(fmt, ...) \
do { TFE_LOG_ERROR(g_default_logger, "DIE: " fmt, ##__VA_ARGS__); abort(); } while(0) \
#define CHECK_OR_DIE(condition, fmt, ...) \
do { if(!(condition)) { TFE_LOG_ERROR(g_default_logger, fmt, ##__VA_ARGS__); abort(); } } while(0) \
#define TFE_STREAM_LOG_DEBUG(stream, fmt, ...)
#define TFE_STREAM_LOG_INFO(stream, fmt, ...)
#define TFE_STREAM_LOG_ERROR(stream, fmt, ...) do { fprintf(stderr, fmt "\n", ##__VA_ARGS__); } while(0)
#define TFE_STREAM_TRACE_TAG_INFO(stream, tag, fmt, ...)
#define TFE_STREAM_TRACE_TAG_VERBOSE(stream, tag, fmt, ...)
#ifndef offsetof
/** Return the offset of a field in a structure. */
#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
#endif
/**
* Return pointer to the wrapping struct instance.
*
* Example:
*
* struct wrapper {
* ...
* struct child c;
* ...
* };
*
* struct child *x = obtain(...);
* struct wrapper *w = container_of(x, struct wrapper, c);
*/
#ifndef container_of
#define container_of(ptr, type, member) __extension__ ({ \
const typeof(((type *)0)->member) *_ptr = (ptr); \
__attribute__((unused)) type *_target_ptr = (type *)(ptr); \
(type *)(((uintptr_t)_ptr) - offsetof(type, member)); \
})
#endif
#define ATOMIC_INC(x) __atomic_fetch_add(x,1,__ATOMIC_RELAXED)
#define ATOMIC_DEC(x) __atomic_fetch_sub(x,1,__ATOMIC_RELAXED)
#define ATOMIC_READ(x) __atomic_load_n(x, __ATOMIC_RELAXED)
//#define ATOMIC_READ(x) __atomic_fetch_add(x,0,__ATOMIC_RELAXED)
#define ATOMIC_ADD(x, y) __atomic_fetch_add(x,y,__ATOMIC_RELAXED)
#define ATOMIC_ZERO(x) __atomic_fetch_and(x,0,__ATOMIC_RELAXED)
#define ATOMIC_SET(x,y) __atomic_store_n(x,y,__ATOMIC_RELAXED)
#ifndef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
char* tfe_strdup(const char* s);
char *tfe_thread_safe_ctime(const time_t *tp, char *buf, int len);
#define TFE_SET_USED(x) (void)(x)
#define TFE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x)))
#define TFE_PTR_SUB(ptr, x) ((void*)((uintptr_t)ptr - (x)))
#define TFE_PTR_DIFF(ptr1, ptr2) ((uintptr_t)(ptr1) - (uintptr_t)(ptr2))
#define TFE_DIM(x) (sizeof (x) / sizeof ((x)[0]))
#ifndef TAILQ_FOREACH_SAFE
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = TAILQ_FIRST((head)); \
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
#include <stdio.h>
#include <stdint.h>
static inline void tfe_hexdump2file(FILE *f, const char * title, const void * buf, unsigned int len)
{
unsigned int i, out, ofs;
const unsigned char *data = (const unsigned char *)buf;
#define LINE_LEN 80
char line[LINE_LEN]; /* space needed 8+16*3+3+16 == 75 */
fprintf(f, "%s at [%p], len=%u\n", (title)? title : " Dump data", data, len);
ofs = 0;
while (ofs < len) {
/* format the line in the buffer, then use printf to output to screen */
out = snprintf(line, LINE_LEN, "%08X:", ofs);
for (i = 0; ((ofs + i) < len) && (i < 16); i++)
out += snprintf(line+out, LINE_LEN - out, " %02X", (data[ofs+i] & 0xff));
for(; i <= 16; i++)
out += snprintf(line+out, LINE_LEN - out, " | ");
for(i = 0; (ofs < len) && (i < 16); i++, ofs++) {
unsigned char c = data[ofs];
if ( (c < ' ') || (c > '~'))
c = '.';
out += snprintf(line+out, LINE_LEN - out, "%c", c);
}
fprintf(f, "%s\n", line);
}
fflush(f);
#undef LINE_LEN
}
static inline unsigned char* tfe_hexdump(unsigned char *dst, unsigned char *src, size_t len)
{
static unsigned char hex[] = "0123456789abcdef";
while (len--) {
*dst++ = hex[*src >> 4];
*dst++ = hex[*src++ & 0xf];
}
return dst;
}
int tfe_scandir(const char *dir, struct dirent ***namelist,
int(*filter)(const struct dirent *),
int(*compar)(const void *, const void *));
char *tfe_read_file(const char *filename, size_t *filelen);
const char * tfe_version();
int tfe_decode_base64url(u_char *dst, u_char *src);
/******************************************************************************
* sids
******************************************************************************/
typedef uint16_t sid_t;
#define MR_SID_LIST_MAXLEN 8
struct sids
{
int num;
sid_t elems[MR_SID_LIST_MAXLEN];
};
void sids_write_once(struct sids *dst, struct sids *src);
void sids_copy(struct sids *dst, struct sids *src);
/******************************************************************************
* route_ctx
******************************************************************************/
struct route_ctx
{
char data[64];
int len;
};
int route_ctx_is_empty(struct route_ctx *ctx);
void route_ctx_copy(struct route_ctx *dst, struct route_ctx *src);
/******************************************************************************
* protocol
******************************************************************************/
struct udp_hdr
{
u_int16_t uh_sport; /* source port */
u_int16_t uh_dport; /* destination port */
u_int16_t uh_ulen; /* udp length */
u_int16_t uh_sum; /* udp checksum */
} __attribute__((__packed__));
int str_to_mac(const char *str, char *mac_buff);
int get_mac_by_device_name(const char *dev_name, char *mac_buff);
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