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commit 71c56235c6fbdeed3ba5a75bb379a34394106619
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Author: Pavel Zhukov <pzhukov@redhat.com>
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Date: Mon Apr 10 12:59:07 2017 +0200
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Backported upstream commit e4a2cb79b2679738f56b3803a44c9899f6982c09
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diff --git a/includes/omapip/isclib.h b/includes/omapip/isclib.h
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index ddefeb5..4dffcb9 100644
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--- a/includes/omapip/isclib.h
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+++ b/includes/omapip/isclib.h
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@@ -104,6 +104,11 @@ extern dhcp_context_t dhcp_gbl_ctx;
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#define DHCP_MAXDNS_WIRE 256
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#define DHCP_MAXNS 3
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#define DHCP_HMAC_MD5_NAME "HMAC-MD5.SIG-ALG.REG.INT."
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+#define DHCP_HMAC_SHA1_NAME "HMAC-SHA1.SIG-ALG.REG.INT."
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+#define DHCP_HMAC_SHA224_NAME "HMAC-SHA224.SIG-ALG.REG.INT."
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+#define DHCP_HMAC_SHA256_NAME "HMAC-SHA256.SIG-ALG.REG.INT."
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+#define DHCP_HMAC_SHA384_NAME "HMAC-SHA384.SIG-ALG.REG.INT."
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+#define DHCP_HMAC_SHA512_NAME "HMAC-SHA512.SIG-ALG.REG.INT."
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isc_result_t dhcp_isc_name(unsigned char *namestr,
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dns_fixedname_t *namefix,
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diff --git a/omapip/isclib.c b/omapip/isclib.c
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index 1534dde..be1982e 100644
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--- a/omapip/isclib.c
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+++ b/omapip/isclib.c
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@@ -198,21 +198,34 @@ isclib_make_dst_key(char *inname,
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dns_name_t *name;
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dns_fixedname_t name0;
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isc_buffer_t b;
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+ unsigned int algorithm_code;
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isc_buffer_init(&b, secret, length);
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isc_buffer_add(&b, length);
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- /* We only support HMAC_MD5 currently */
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- if (strcasecmp(algorithm, DHCP_HMAC_MD5_NAME) != 0) {
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+ if (strcasecmp(algorithm, DHCP_HMAC_MD5_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACMD5;
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+ } else if (strcasecmp(algorithm, DHCP_HMAC_SHA1_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACSHA1;
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+ } else if (strcasecmp(algorithm, DHCP_HMAC_SHA224_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACSHA224;
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+ } else if (strcasecmp(algorithm, DHCP_HMAC_SHA256_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACSHA256;
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+ } else if (strcasecmp(algorithm, DHCP_HMAC_SHA384_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACSHA384;
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+ } else if (strcasecmp(algorithm, DHCP_HMAC_SHA512_NAME) == 0) {
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+ algorithm_code = DST_ALG_HMACSHA512;
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+ } else {
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return(DHCP_R_INVALIDARG);
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}
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+
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result = dhcp_isc_name((unsigned char *)inname, &name0, &name);
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if (result != ISC_R_SUCCESS) {
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return(result);
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}
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- return(dst_key_frombuffer(name, DST_ALG_HMACMD5, DNS_KEYOWNER_ENTITY,
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+ return(dst_key_frombuffer(name, algorithm_code, DNS_KEYOWNER_ENTITY,
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DNS_KEYPROTO_DNSSEC, dns_rdataclass_in,
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&b, dhcp_gbl_ctx.mctx, dstkey));
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}
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diff --git a/server/dhcpd.conf.5 b/server/dhcpd.conf.5
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index 0cb50a6..74393c2 100644
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--- a/server/dhcpd.conf.5
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+++ b/server/dhcpd.conf.5
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@@ -1398,6 +1398,18 @@ generate a key as seen above:
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dnskeygen -H 128 -u -c -n DHCP_UPDATER
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.fi
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.PP
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+The key name, algorithm, and secret must match that being used by the DNS
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+server. The DHCP server currently supports the following algorithms:
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+.nf
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+
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+ HMAC-MD5
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+ HMAC-SHA1
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+ HMAC-SHA224
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+ HMAC-SHA256
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+ HMAC-SHA384
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+ HMAC-SHA512
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+.fi
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+.PP
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You may wish to enable logging of DNS updates on your DNS server.
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To do so, you might write a logging statement like the following:
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.PP
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