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netinet/in.h: add INADDR_DUMMY from linux v5.13

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  linux commit 321827477360934dc040e9d3c626bf1de6c3ab3c
  icmp: don't send out ICMP messages with a source address of 0.0.0.0

"RFC7600 reserves a dummy address to be used as a source for ICMP
messages (192.0.0.8/32), so let's teach the kernel to substitute that
address as a last resort if the regular source address selection procedure
fails."
This commit is contained in:
Szabolcs Nagy
2022-03-08 17:21:26 -05:00
committed by Rich Felker
parent ee05b11b67
commit dda21f10a7
1 changed files with 1 additions and 0 deletions
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include/netinet/in.h
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@@ -48,6 +48,7 @@ struct ipv6_mreq {
#define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
#define INADDR_NONE ((in_addr_t) 0xffffffff)
#define INADDR_LOOPBACK ((in_addr_t) 0x7f000001)
#define INADDR_DUMMY ((in_addr_t) 0xc0000008)
#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000)
#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001)