Use the 20-resolv.conf hook from dhcpcd rather than the minimal one.
Extract configured information from resolv.conf and hostname instead of scraping the last dhcpcd script run. This will allow the use of DHCPv6 and IPv6RA DNS details in the future.
This commit is contained in:
parent
4fabb2a304
commit
ec4a0efb33
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@ -1,22 +0,0 @@
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# Minimal version using shell builtins.
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make_resolv_conf()
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{
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if [ -z "${new_domain_name_servers}" -a \
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-z "${new_domain_name}" -a \
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-z "${new_domain_search}" ]; then
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return 0
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fi
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if [ -n "${new_domain_search}" ]; then
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echo "search ${new_domain_search}" >> /etc/resolv.conf
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elif [ -n "${new_domain_name}" ]; then
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echo "search ${new_domain_name}" >> /etc/resolv.conf
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fi
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for x in ${new_domain_name_servers}; do
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echo "nameserver ${x}" >> /etc/resolv.conf
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done
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}
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case "${reason}" in
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BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT) make_resolv_conf;;
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esac
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@ -1,11 +0,0 @@
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# $NetBSD: 99-print-sysinst,v 1.1 2009/04/07 11:49:17 joerg Exp $
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case "${reason}" in
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BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT)
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cat > /tmp/dhcpcd-lease << EOF
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host-name=${new_host_name}
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domain-name=${new_domain_name}
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EOF
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set > /tmp/dhcpcd-lease-all
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;;
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esac
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@ -1,8 +1,9 @@
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# $NetBSD: Makefile.dhcpcd,v 1.1 2009/04/07 11:49:17 joerg Exp $
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# $NetBSD: Makefile.dhcpcd,v 1.2 2014/09/12 20:42:13 roy Exp $
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IMAGEDEPENDS+= \
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${DESTDIR}/etc/dhcpcd.conf \
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${DESTDIR}/libexec/dhcpcd-run-hooks \
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${DESTDIR}/libexec/dhcpcd-hooks/20-resolv.conf \
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${DESTDIR}/libexec/dhcpcd-hooks/30-hostname
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LISTS+= ${DISTRIBDIR}/common/list.dhcpcd
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@ -1,4 +1,4 @@
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# $NetBSD: list.dhcpcd,v 1.2 2011/05/31 06:19:11 christos Exp $
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# $NetBSD: list.dhcpcd,v 1.3 2014/09/12 20:42:13 roy Exp $
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#
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# list file (c.f. parselist.awk) for DHCP-enabled install media.
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#
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@ -8,7 +8,5 @@ SPECIAL dhcpcd srcdir external/bsd/dhcpcd/sbin/dhcpcd
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COPY ${DESTDIR}/etc/dhcpcd.conf etc/dhcpcd.conf
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COPY ${DESTDIR}/libexec/dhcpcd-run-hooks libexec/dhcpcd-run-hooks 555
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COPY ${NETBSDSRCDIR}/distrib/common/10-resolv.conf libexec/dhcpcd-hooks/10-resolv.conf
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COPY ${DESTDIR}/libexec/dhcpcd-hooks/20-resolv.conf libexec/dhcpcd-hooks/20-resolv.conf
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COPY ${DESTDIR}/libexec/dhcpcd-hooks/30-hostname libexec/dhcpcd-hooks/30-hostname
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COPY ${NETBSDSRCDIR}/distrib/common/99-print-sysinst libexec/dhcpcd-hooks/99-print-sysinst
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@ -1,4 +1,4 @@
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/* $NetBSD: net.c,v 1.5 2014/09/12 20:20:25 roy Exp $ */
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/* $NetBSD: net.c,v 1.6 2014/09/12 20:42:13 roy Exp $ */
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/*
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* Copyright 1997 Piermont Information Systems Inc.
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@ -104,7 +104,6 @@ static void write_etc_hosts(FILE *f);
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#define DHCPCD "/sbin/dhcpcd"
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#include <signal.h>
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static int config_dhcp(char *);
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static void get_dhcp_value(char *, size_t, const char *);
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#ifdef INET6
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static int is_v6kernel (void);
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@ -533,7 +532,6 @@ config_network(void)
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int selected_net;
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int i;
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char dhcp_host[STRSIZE];
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#ifdef INET6
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int v6config = 1;
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#endif
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@ -645,6 +643,8 @@ again:
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/* try a dhcp configuration */
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dhcp_config = config_dhcp(net_dev);
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if (dhcp_config) {
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char *nl;
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/* Get newly configured data off interface. */
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get_ifinterface_info();
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get_if6interface_info();
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@ -657,44 +657,62 @@ again:
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* 'route -n show'
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*/
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if (collect(T_OUTPUT, &textbuf,
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"/sbin/route -n show | "
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"while read dest gateway flags;"
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" do [ \"$dest\" = default ] && {"
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" echo $gateway; break; };"
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" done" ) > 0)
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"/sbin/route -n show | "
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"while read dest gateway flags;"
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" do [ \"$dest\" = default ] && {"
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" echo \"$gateway\"; break; };"
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" done" ) > 0)
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strlcpy(net_defroute, textbuf,
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sizeof net_defroute);
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free(textbuf);
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if ((nl = strchr(net_namesvr, '\n')))
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*nl = '\0';
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/* pull nameserver info out of /etc/resolv.conf */
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if (collect(T_OUTPUT, &textbuf,
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"cat /etc/resolv.conf 2>/dev/null |"
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" while read keyword address rest;"
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" do [ \"$keyword\" = nameserver "
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" -a \"${address#*:}\" = "
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"\"${address}\" ] && {"
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" echo $address; break; };"
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" done" ) > 0)
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"cat /etc/resolv.conf 2>/dev/null |"
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" while read keyword address rest;"
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" do [ \"$keyword\" = nameserver ] &&"
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" { echo \"$address\"; break; };"
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" done" ) > 0)
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strlcpy(net_namesvr, textbuf,
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sizeof net_namesvr);
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free(textbuf);
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if ((nl = strchr(net_namesvr, '\n')))
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*nl = '\0';
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if (net_namesvr[0] != '\0')
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net_dhcpconf |= DHCPCONF_NAMESVR;
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/* pull domainname out of leases file */
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get_dhcp_value(net_domain, sizeof(net_domain),
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"domain-name");
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/* pull domain info out of /etc/resolv.conf */
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if (collect(T_OUTPUT, &textbuf,
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"cat /etc/resolv.conf 2>/dev/null |"
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" while read keyword domain rest;"
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" do [ \"$keyword\" = domain ] &&"
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" { echo \"$domain\"; break; };"
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" done" ) > 0)
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strlcpy(net_domain, textbuf,
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sizeof net_domain);
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free(textbuf);
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if (net_domain[0] == '\0') {
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/* pull domain info out of /etc/resolv.conf */
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if (collect(T_OUTPUT, &textbuf,
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"cat /etc/resolv.conf 2>/dev/null |"
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" while read keyword search rest;"
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" do [ \"$keyword\" = search ] &&"
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" { echo \"$search\"; break; };"
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" done" ) > 0)
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strlcpy(net_domain, textbuf,
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sizeof net_domain);
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free(textbuf);
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}
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if ((nl = strchr(net_domain, '\n')))
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*nl = '\0';
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if (net_domain[0] != '\0')
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net_dhcpconf |= DHCPCONF_DOMAIN;
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/* pull hostname out of leases file */
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dhcp_host[0] = 0;
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get_dhcp_value(dhcp_host, sizeof(dhcp_host),
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"host-name");
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if (dhcp_host[0] != '\0') {
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if (gethostname(net_host, sizeof(net_host)) == 0 &&
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net_host[0] != 0)
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net_dhcpconf |= DHCPCONF_HOST;
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strlcpy(net_host, dhcp_host, sizeof net_host);
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}
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}
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}
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}
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return 0;
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}
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static void
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get_dhcp_value(char *targ, size_t l, const char *var)
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{
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static const char *lease_data = "/tmp/dhcpcd-lease";
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FILE *fp;
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char *line;
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size_t len, var_len;
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if ((fp = fopen(lease_data, "r")) == NULL) {
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warn("Could not open %s", lease_data);
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*targ = '\0';
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return;
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}
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var_len = strlen(var);
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while ((line = fgetln(fp, &len)) != NULL) {
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if (line[len - 1] == '\n')
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--len;
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if (len <= var_len)
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continue;
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if (memcmp(line, var, var_len))
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continue;
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if (line[var_len] != '=')
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continue;
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line += var_len + 1;
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len -= var_len + 1;
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strlcpy(targ, line, l > len ? len + 1: l);
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break;
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}
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fclose(fp);
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}
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