453693ecc0
In Azure, the DHCP servers add private option (id 0xf5), which contains binary form of an IPv4 address. Once this option is converted to string form, it could contain '$', e.g. IPv4 address: 100.72.36.54 binary form: 0x64 0x48 0x24 0x36 string form: "dH$6" dhclient bails upon "illegal" options like the above example, thus the VM bring-up will fail. Also as a side note, this "illegal" option detection was added in OpenBSD ~11years ago: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sbin/dhclient/dhclient.c?rev=1.50&content-type=text/x-cvsweb-markup And it was removed along with the removal of script support in OpenBSD ~3years ago: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sbin/dhclient/dhclient.c?rev=1.159&content-type=text/x-cvsweb-markup Reported by: Hongxiong Xian <v-hoxian microsoft com> Reviewed by: jhb, Dexuan Cui <decui microsoft com> Tested by: Hongxiong Xian <v-hoxian microsoft com> Analyzed by: Dong Liu <doliu microsoft com> MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5853 |
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| .. | ||
| tests | ||
| alloc.c | ||
| bpf.c | ||
| clparse.c | ||
| conflex.c | ||
| convert.c | ||
| dhclient-script | ||
| dhclient-script.8 | ||
| dhclient.8 | ||
| dhclient.c | ||
| dhclient.conf | ||
| dhclient.conf.5 | ||
| dhclient.leases.5 | ||
| dhcp-options.5 | ||
| dhcp.h | ||
| dhcpd.h | ||
| dhctoken.h | ||
| dispatch.c | ||
| errwarn.c | ||
| hash.c | ||
| inet.c | ||
| Makefile | ||
| Makefile.depend | ||
| options.c | ||
| packet.c | ||
| parse.c | ||
| privsep.c | ||
| privsep.h | ||
| tables.c | ||
| tree.c | ||
| tree.h | ||