Re: [PATCH] rtnetlink.7: Document struct ifa_cacheinfo
From: Kuniyuki Iwashima <hidden>
Date: 2024-11-05 05:53:46
Also in:
linux-man
From: Alex Henrie <redacted> Date: Mon, 4 Nov 2024 21:14:20 -0700
quoted hunk ↗ jump to hunk
struct ifa_cacheinfo contains the address's creation time, update time, preferred lifetime, and valid lifetime. See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/if_addr.h?h=v6.11#n60 Signed-off-by: Alex Henrie <redacted> --- man/man7/rtnetlink.7 | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)diff --git a/man/man7/rtnetlink.7 b/man/man7/rtnetlink.7 index 86ed459bb..b05654315 100644 --- a/man/man7/rtnetlink.7 +++ b/man/man7/rtnetlink.7@@ -176,7 +176,15 @@ IFA_BROADCAST:raw protocol address:broadcast address IFA_ANYCAST:raw protocol address:anycast address IFA_CACHEINFO:struct ifa_cacheinfo:Address information .TE -.\" FIXME Document struct ifa_cacheinfo +.IP +.EX +struct ifa_cacheinfo { + __u32 ifa_prefered; /* Preferred lifetime in seconds, -1 = forever */ + __u32 ifa_valid; /* Valid lifetime in seconds, -1 = forever */
-1 should be rather 0xFFFFFFFF (INFINITY_LIFE_TIME) as it's unsigned. Also, it would be nice to mention that ifa_prefered must be less than or equal to ifa_valid (ifa_prefered <= ifa_valid) and 0 is invalid for ifa_valid. 0 <= ifa_prefered <= ifa_valid 0 < ifa_valid <= 0xFFFFFFFF
+ __u32 cstamp; /* Creation timestamp in hundredths of seconds */ + __u32 tstamp; /* Update timestamp in hundredths of seconds */ +};
Maybe the explanation can follow the struct here as sentences.
+.EE .TP .B RTM_NEWROUTE .TQ -- 2.47.0