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[hurd] Add MTU_DISCOVER values

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This commit is contained in:
Samuel Thibault 2023-02-15 15:13:19 +01:00
parent bf33bf5948
commit 4738bc2185
1 changed files with 20 additions and 0 deletions
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20
bits/in.h
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@ -44,6 +44,18 @@
#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
/* IP_MTU_DISCOVER arguments. */
#define IP_PMTUDISC_DONT 0 /* Never send DF frames. */
#define IP_PMTUDISC_WANT 1 /* Use per route hints. */
#define IP_PMTUDISC_DO 2 /* Always DF. */
#define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
/* Always use interface mtu (ignores dst pmtu) but don't set DF flag.
Also incoming ICMP frag_needed notifications will be ignored on
this socket to prevent accepting spoofed ones. */
#define IP_PMTUDISC_INTERFACE 4
/* Like IP_PMTUDISC_INTERFACE but allow packets to be fragmented. */
#define IP_PMTUDISC_OMIT 5
#ifdef __USE_MISC
/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
The `ip_dst' field is used for the first-hop gateway when using a
@ -88,6 +100,14 @@ struct ip_opts
#define IPV6_JOIN_ANYCAST 27
#define IPV6_LEAVE_ANYCAST 28
/* IPV6_MTU_DISCOVER values. */
#define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */
#define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */
#define IPV6_PMTUDISC_DO 2 /* Always DF. */
#define IPV6_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */
#define IPV6_PMTUDISC_INTERFACE 4 /* See IP_PMTUDISC_INTERFACE. */
#define IPV6_PMTUDISC_OMIT 5 /* See IP_PMTUDISC_OMIT. */
/* Advanced API (RFC3542) (1). */
#define IPV6_RECVPKTINFO 49
#define IPV6_PKTINFO 50