Module Name: src
Committed By: msaitoh
Date: Mon Nov 7 08:32:35 UTC 2022
Modified Files:
src/sys/net: if_dl.h
Log Message:
Increase sdl_data so that more then IFNAMSIZ bytes are available (again).
COMPAT_9 is not required.
- The getifaddrs(3) function has no problem. The routing message has no
problem because struct rtm_msglen has rtm_msglen and we can get the next
message using with it. There is no any kernel data structure which has
struct sockaddr_dl foobadr[xxx] array.
- A data passed from userland and a kernel data are compared with
sockaddr_cmp(). The return value is used to check if the size is
inadequate or not.
- In the kernel, sdl_len is not directly used for the length of memcpy()
but the sockaddr_dl_measure() is used for it.
To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/sys/net/if_dl.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/net/if_dl.h
diff -u src/sys/net/if_dl.h:1.30 src/sys/net/if_dl.h:1.31
--- src/sys/net/if_dl.h:1.30 Thu Oct 27 00:25:11 2022
+++ src/sys/net/if_dl.h Mon Nov 7 08:32:35 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: if_dl.h,v 1.30 2022/10/27 00:25:11 msaitoh Exp $ */
+/* $NetBSD: if_dl.h,v 1.31 2022/11/07 08:32:35 msaitoh Exp $ */
/*
* Copyright (c) 1990, 1993
@@ -68,11 +68,11 @@ struct dl_addr {
uint8_t dl_nlen; /* interface name length, no trailing 0 reqd. */
uint8_t dl_alen; /* link level address length */
uint8_t dl_slen; /* link layer selector length */
- /*
- * minimum work area, can be larger; contains both if name
- * and ll address
- */
- char dl_data[12];
+ char dl_data[24]; /*
+ * minimum work area, can be larger; contains
+ * both if name and ll address; big enough for
+ * IFNAMSIZ plus 8byte ll addr.
+ */
};
/*
