include/utils.h

   1 #ifndef __UTILS_H__
   2 #define __UTILS_H__ 1
   3
   4 #include <sys/types.h>
   5 #include <asm/types.h>
   6 #include <resolv.h>
   7 #include <stdlib.h>
   8 #include <stdbool.h>
   9
  10 #include "libnetlink.h"
  11 #include "ll_map.h"
  12 #include "rtm_map.h"
  13
  14 extern int preferred_family;
  15 extern int human_readable;
  16 extern int use_iec;
  17 extern int show_stats;
  18 extern int show_details;
  19 extern int show_raw;
  20 extern int resolve_hosts;
  21 extern int oneline;
  22 extern int timestamp;
  23 extern int timestamp_short;
  24 extern char * _SL_;
  25 extern int max_flush_loops;
  26 extern int batch_mode;
  27 extern bool do_all;
  28
  29 #ifndef IPPROTO_ESP
  30 #define IPPROTO_ESP     50
  31 #endif
  32 #ifndef IPPROTO_AH
  33 #define IPPROTO_AH      51
  34 #endif
  35 #ifndef IPPROTO_COMP
  36 #define IPPROTO_COMP    108
  37 #endif
  38 #ifndef IPSEC_PROTO_ANY
  39 #define IPSEC_PROTO_ANY 255
  40 #endif
  41
  42 #define SPRINT_BSIZE 64
  43 #define SPRINT_BUF(x)   char x[SPRINT_BSIZE]
  44
  45 extern void incomplete_command(void) __attribute__((noreturn));
  46
  47 #define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
  48 #define NEXT_ARG_OK() (argc - 1 > 0)
  49 #define PREV_ARG() do { argv--; argc++; } while(0)
  50
  51 typedef struct
  52 {
  53         __u8 family;
  54         __u8 bytelen;
  55         __s16 bitlen;
  56         __u32 flags;
  57         __u32 data[8];
  58 } inet_prefix;
  59
  60 #define PREFIXLEN_SPECIFIED 1
  61
  62 #define DN_MAXADDL 20
  63 #ifndef AF_DECnet
  64 #define AF_DECnet 12
  65 #endif
  66
  67 struct dn_naddr
  68 {
  69         unsigned short          a_len;
  70         unsigned char a_addr[DN_MAXADDL];
  71 };
  72
  73 #define IPX_NODE_LEN 6
  74
  75 struct ipx_addr {
  76         u_int32_t ipx_net;
  77         u_int8_t  ipx_node[IPX_NODE_LEN];
  78 };
  79
  80 extern __u32 get_addr32(const char *name);
  81 extern int get_addr_1(inet_prefix *dst, const char *arg, int family);
  82 extern int get_prefix_1(inet_prefix *dst, char *arg, int family);
  83 extern int get_addr(inet_prefix *dst, const char *arg, int family);
  84 extern int get_prefix(inet_prefix *dst, char *arg, int family);
  85 extern int mask2bits(__u32 netmask);
  86
  87 extern int get_integer(int *val, const char *arg, int base);
  88 extern int get_unsigned(unsigned *val, const char *arg, int base);
  89 extern int get_time_rtt(unsigned *val, const char *arg, int *raw);
  90 #define get_byte get_u8
  91 #define get_ushort get_u16
  92 #define get_short get_s16
  93 extern int get_u64(__u64 *val, const char *arg, int base);
  94 extern int get_u32(__u32 *val, const char *arg, int base);
  95 extern int get_s32(__s32 *val, const char *arg, int base);
  96 extern int get_u16(__u16 *val, const char *arg, int base);
  97 extern int get_s16(__s16 *val, const char *arg, int base);
  98 extern int get_u8(__u8 *val, const char *arg, int base);
  99 extern int get_s8(__s8 *val, const char *arg, int base);
 100
 101 extern char* hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
 102 extern __u8* hexstring_a2n(const char *str, __u8 *buf, int blen);
 103
 104 extern int af_bit_len(int af);
 105 extern int af_byte_len(int af);
 106
 107 extern const char *format_host(int af, int len, const void *addr,
 108                                char *buf, int buflen);
 109 extern const char *rt_addr_n2a(int af, int len, const void *addr,
 110                                char *buf, int buflen);
 111
 112 void missarg(const char *) __attribute__((noreturn));
 113 void invarg(const char *, const char *) __attribute__((noreturn));
 114 void duparg(const char *, const char *) __attribute__((noreturn));
 115 void duparg2(const char *, const char *) __attribute__((noreturn));
 116 int matches(const char *arg, const char *pattern);
 117 extern int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
 118
 119 const char *dnet_ntop(int af, const void *addr, char *str, size_t len);
 120 int dnet_pton(int af, const char *src, void *addr);
 121
 122 const char *ipx_ntop(int af, const void *addr, char *str, size_t len);
 123 int ipx_pton(int af, const char *src, void *addr);
 124
 125 extern int __iproute2_hz_internal;
 126 extern int __get_hz(void);
 127
 128 static __inline__ int get_hz(void)
 129 {
 130         if (__iproute2_hz_internal == 0)
 131                 __iproute2_hz_internal = __get_hz();
 132         return __iproute2_hz_internal;
 133 }
 134
 135 extern int __iproute2_user_hz_internal;
 136 extern int __get_user_hz(void);
 137
 138 static __inline__ int get_user_hz(void)
 139 {
 140         if (__iproute2_user_hz_internal == 0)
 141                 __iproute2_user_hz_internal = __get_user_hz();
 142         return __iproute2_user_hz_internal;
 143 }
 144
 145 static inline __u32 nl_mgrp(__u32 group)
 146 {
 147         if (group > 31 ) {
 148                 fprintf(stderr, "Use setsockopt for this group %d\n", group);
 149                 exit(-1);
 150         }
 151         return group ? (1 << (group - 1)) : 0;
 152 }
 153
 154
 155 int print_timestamp(FILE *fp);
 156 void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
 157
 158 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 159
 160 #ifndef __check_format_string
 161 # define __check_format_string(pos_str, pos_args) \
 162         __attribute__ ((format (printf, (pos_str), (pos_args))))
 163 #endif
 164
 165 extern int cmdlineno;
 166 extern ssize_t getcmdline(char **line, size_t *len, FILE *in);
 167 extern int makeargs(char *line, char *argv[], int maxargs);
 168 extern int inet_get_addr(const char *src, __u32 *dst, struct in6_addr *dst6);
 169
 170 struct iplink_req;
 171 int iplink_parse(int argc, char **argv, struct iplink_req *req,
 172                 char **name, char **type, char **link, char **dev,
 173                 int *group, int *index);
 174
 175 extern int do_each_netns(int (*func)(char *nsname, void *arg), void *arg,
 176                 bool show_label);
 177
 178 char *int_to_str(int val, char *buf);
 179
 180 #endif /* __UTILS_H__ */