Add sanity check for ifm_version in struct if_msghdr.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=223752
@ -105,6 +105,12 @@ if_nametosdl(char *name)
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lim = buf + len;
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for (next = buf; next < lim; next += ifm->ifm_msglen) {
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ifm = (struct if_msghdr *)next;
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if (ifm->ifm_version != RTM_VERSION) {
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syslog(LOG_ERR,
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"<%s> RTM_VERSION mismatch (%d != %d).",
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__func__, ifm->ifm_version, RTM_VERSION);
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continue;
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}
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if (ifm->ifm_type == RTM_IFINFO) {
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sa = (struct sockaddr *)(ifm + 1);
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get_rtaddrs(ifm->ifm_addrs, sa, rti_info);
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