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Lib: Check size of nets

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This commit is contained in:
Ondrej Zajicek (work) 2017-12-10 13:18:36 +01:00
parent a32a7b58ce
commit 67a2eb9177
3 changed files with 23 additions and 2 deletions
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18
lib/net.c
View File

@ -288,3 +288,21 @@ net_in_netX(const net_addr *a, const net_addr *n)
return (net_pxlen(n) <= net_pxlen(a)) && ipa_in_netX(net_prefix(a), n); return (net_pxlen(n) <= net_pxlen(a)) && ipa_in_netX(net_prefix(a), n);
} }
#define CHECK_NET(T,S) \
({ if (sizeof(T) != S) die("sizeof %s is %d/%d", #T, (int) sizeof(T), S); })
void
net_init(void)
{
CHECK_NET(net_addr, 24);
CHECK_NET(net_addr_ip4, 8);
CHECK_NET(net_addr_ip6, 20);
CHECK_NET(net_addr_vpn4, 16);
CHECK_NET(net_addr_vpn6, 32);
CHECK_NET(net_addr_roa4, 16);
CHECK_NET(net_addr_roa6, 28);
CHECK_NET(net_addr_flow4, 8);
CHECK_NET(net_addr_flow6, 20);
CHECK_NET(net_addr_mpls, 8);
}

6
lib/net.h
View File

@ -45,7 +45,7 @@ typedef struct net_addr {
u8 type; u8 type;
u8 pxlen; u8 pxlen;
u16 length; u16 length;
u8 data[16]; u8 data[20];
u64 align[0]; u64 align[0];
} net_addr; } net_addr;
@ -76,6 +76,7 @@ typedef struct net_addr_vpn6 {
u8 pxlen; u8 pxlen;
u16 length; u16 length;
ip6_addr prefix; ip6_addr prefix;
u32 padding;
u64 rd; u64 rd;
} net_addr_vpn6; } net_addr_vpn6;
@ -152,7 +153,7 @@ extern const u16 net_max_text_length[];
((net_addr_vpn4) { NET_VPN4, pxlen, sizeof(net_addr_vpn4), prefix, rd }) ((net_addr_vpn4) { NET_VPN4, pxlen, sizeof(net_addr_vpn4), prefix, rd })
#define NET_ADDR_VPN6(prefix,pxlen,rd) \ #define NET_ADDR_VPN6(prefix,pxlen,rd) \
((net_addr_vpn6) { NET_VPN6, pxlen, sizeof(net_addr_vpn6), prefix, rd }) ((net_addr_vpn6) { NET_VPN6, pxlen, sizeof(net_addr_vpn6), prefix, 0, rd })
#define NET_ADDR_ROA4(prefix,pxlen,max_pxlen,asn) \ #define NET_ADDR_ROA4(prefix,pxlen,max_pxlen,asn) \
((net_addr_roa4) { NET_ROA4, pxlen, sizeof(net_addr_roa4), prefix, max_pxlen, asn }) ((net_addr_roa4) { NET_ROA4, pxlen, sizeof(net_addr_roa4), prefix, max_pxlen, asn })
@ -544,5 +545,6 @@ static inline int net_in_net_ip6(const net_addr_ip6 *a, const net_addr_ip6 *b)
int ipa_in_netX(const ip_addr A, const net_addr *N); int ipa_in_netX(const ip_addr A, const net_addr *N);
int net_in_netX(const net_addr *A, const net_addr *N); int net_in_netX(const net_addr *A, const net_addr *N);
void net_init(void);
#endif #endif

1
sysdep/unix/main.c
View File

@ -820,6 +820,7 @@ main(int argc, char **argv)
log_init_debug(""); log_init_debug("");
log_switch(debug_flag, NULL, NULL); log_switch(debug_flag, NULL, NULL);
net_init();
resource_init(); resource_init();
timer_init(); timer_init();
olock_init(); olock_init();