forked from tfgrid/zosbuilder
fix: Switch to space-separated sources.conf format
- Change from colon to space separation to avoid URL parsing issues - Update sources.conf format: TYPE NAME URL VERSION BUILD_FUNCTION [EXTRA] - Implement awk-based parsing for reliable field extraction - Fix firmware package list (remove unavailable linux-firmware-marvell)
This commit is contained in:
233
initramfs/usr/lib/dhcpcd/dhcpcd-hooks/20-resolv.conf
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233
initramfs/usr/lib/dhcpcd/dhcpcd-hooks/20-resolv.conf
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# Generate /etc/resolv.conf
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# Support resolvconf(8) if available
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# We can merge other dhcpcd resolv.conf files into one like resolvconf,
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# but resolvconf is preferred as other applications like VPN clients
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# can readily hook into it.
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# Also, resolvconf can configure local nameservers such as bind
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# or dnsmasq. This is important as the libc resolver isn't that powerful.
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resolv_conf_dir="$state_dir/resolv.conf"
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nocarrier_roaming_dir="$state_dir/roaming"
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NL="
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"
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: ${resolvconf:=resolvconf}
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if command -v "$resolvconf" >/dev/null 2>&1; then
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have_resolvconf=true
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else
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have_resolvconf=false
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fi
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build_resolv_conf()
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{
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cf="$state_dir/resolv.conf.$ifname"
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# Build a list of interfaces
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interfaces=$(list_interfaces "$resolv_conf_dir")
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# Build the resolv.conf
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header=
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if [ -n "$interfaces" ]; then
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# Build the header
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for x in ${interfaces}; do
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header="$header${header:+, }$x"
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done
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# Build the search list
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domain=$(cd "$resolv_conf_dir"; \
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key_get_value "domain " ${interfaces})
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search=$(cd "$resolv_conf_dir"; \
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key_get_value "search " ${interfaces})
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set -- ${domain}
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domain="$1"
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[ -n "$2" ] && search="$search $*"
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[ -n "$search" ] && search="$(uniqify $search)"
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[ "$domain" = "$search" ] && search=
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[ -n "$domain" ] && domain="domain $domain$NL"
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[ -n "$search" ] && search="search $search$NL"
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# Build the nameserver list
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srvs=$(cd "$resolv_conf_dir"; \
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key_get_value "nameserver " ${interfaces})
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for x in $(uniqify $srvs); do
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servers="${servers}nameserver $x$NL"
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done
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fi
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header="$signature_base${header:+ $from }$header"
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# Assemble resolv.conf using our head and tail files
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[ -f "$cf" ] && rm -f "$cf"
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[ -d "$resolv_conf_dir" ] || mkdir -p "$resolv_conf_dir"
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echo "$header" > "$cf"
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if [ -f /etc/resolv.conf.head ]; then
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cat /etc/resolv.conf.head >> "$cf"
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else
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echo "# /etc/resolv.conf.head can replace this line" >> "$cf"
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fi
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printf %s "$domain$search$servers" >> "$cf"
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if [ -f /etc/resolv.conf.tail ]; then
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cat /etc/resolv.conf.tail >> "$cf"
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else
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echo "# /etc/resolv.conf.tail can replace this line" >> "$cf"
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fi
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if change_file /etc/resolv.conf "$cf"; then
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chmod 644 /etc/resolv.conf
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fi
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rm -f "$cf"
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}
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# Extract any ND DNS options from the RA
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# Obey the lifetimes
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eval_nd_dns()
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{
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eval rdnsstime=\$nd${i}_rdnss${j}_lifetime
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if [ -n "$rdnsstime" ]; then
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ltime=$(($rdnsstime - $offset))
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if [ "$ltime" -gt 0 ]; then
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eval rdnss=\$nd${i}_rdnss${j}_servers
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if [ -n "$rdnss" ]; then
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new_rdnss="$new_rdnss${new_rdnss:+ }$rdnss"
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fi
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fi
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fi
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eval dnssltime=\$nd${i}_dnssl${j}_lifetime
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if [ -n "$dnssltime" ]; then
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ltime=$(($dnssltime - $offset))
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if [ "$ltime" -gt 0 ]; then
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eval dnssl=\$nd${i}_dnssl${j}_search
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if [ -n "$dnssl" ]; then
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new_dnssl="$new_dnssl${new_dnssl:+ }$dnssl"
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fi
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fi
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fi
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# Break when we don't have either
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[ -z "$rdnsstime" ] && [ -z "$dnssltime" ] && return 1
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j=$(($j + 1))
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return 0
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}
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add_resolv_conf()
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{
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conf="$signature$NL"
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warn=true
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# Loop to extract the ND DNS options using our indexed shell values
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i=1
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j=1
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while true; do
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eval acquired=\$nd${i}_acquired
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[ -z "$acquired" ] && break
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eval now=\$nd${i}_now
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[ -z "$now" ] && break
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offset=$(($now - $acquired))
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while true; do
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eval_nd_dns || break
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done
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i=$(($i + 1))
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j=1
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done
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[ -n "$new_rdnss" ] && \
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new_domain_name_servers="$new_domain_name_servers${new_domain_name_servers:+ }$new_rdnss"
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[ -n "$new_dnssl" ] && \
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new_domain_search="$new_domain_search${new_domain_search:+ }$new_dnssl"
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# Derive a new domain from our various hostname options
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if [ -z "$new_domain_name" ]; then
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if [ "$new_dhcp6_fqdn" != "${new_dhcp6_fqdn#*.}" ]; then
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new_domain_name="${new_dhcp6_fqdn#*.}"
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elif [ "$new_fqdn" != "${new_fqdn#*.}" ]; then
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new_domain_name="${new_fqdn#*.}"
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elif [ "$new_host_name" != "${new_host_name#*.}" ]; then
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new_domain_name="${new_host_name#*.}"
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fi
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fi
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# If we don't have any configuration, remove it
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if [ -z "$new_domain_name_servers" ] &&
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[ -z "$new_domain_name" ] &&
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[ -z "$new_domain_search" ]; then
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remove_resolv_conf
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return $?
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fi
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if [ -n "$new_domain_name" ]; then
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set -- $new_domain_name
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if valid_domainname "$1"; then
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conf="${conf}domain $1$NL"
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else
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syslog err "Invalid domain name: $1"
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fi
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# If there is no search this, make this one
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if [ -z "$new_domain_search" ]; then
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new_domain_search="$new_domain_name"
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[ "$new_domain_name" = "$1" ] && warn=true
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fi
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fi
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if [ -n "$new_domain_search" ]; then
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new_domain_search=$(uniqify $new_domain_search)
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if valid_domainname_list $new_domain_search; then
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conf="${conf}search $new_domain_search$NL"
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elif ! $warn; then
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syslog err "Invalid domain name in list:" \
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"$new_domain_search"
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fi
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fi
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new_domain_name_servers=$(uniqify $new_domain_name_servers)
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for x in ${new_domain_name_servers}; do
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conf="${conf}nameserver $x$NL"
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done
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if $have_resolvconf; then
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[ -n "$ifmetric" ] && export IF_METRIC="$ifmetric"
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printf %s "$conf" | "$resolvconf" -a "$ifname"
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return $?
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fi
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if [ -e "$resolv_conf_dir/$ifname" ]; then
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rm -f "$resolv_conf_dir/$ifname"
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fi
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[ -d "$resolv_conf_dir" ] || mkdir -p "$resolv_conf_dir"
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printf %s "$conf" > "$resolv_conf_dir/$ifname"
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build_resolv_conf
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}
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remove_resolv_conf()
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{
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if $have_resolvconf; then
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"$resolvconf" -d "$ifname" -f
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else
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if [ -e "$resolv_conf_dir/$ifname" ]; then
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rm -f "$resolv_conf_dir/$ifname"
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fi
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build_resolv_conf
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fi
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}
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# For ease of use, map DHCP6 names onto our DHCP4 names
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case "$reason" in
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BOUND6|RENEW6|REBIND6|REBOOT6|INFORM6)
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new_domain_name_servers="$new_dhcp6_name_servers"
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new_domain_search="$new_dhcp6_domain_search"
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;;
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esac
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if $if_configured; then
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if $have_resolvconf && [ "$reason" = NOCARRIER_ROAMING ]; then
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# avoid calling resolvconf -c on CARRIER unless we roam
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mkdir -p "$nocarrier_roaming_dir"
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echo " " >"$nocarrier_roaming_dir/$interface"
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"$resolvconf" -C "$interface.*"
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elif $have_resolvconf && [ "$reason" = CARRIER ]; then
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# Not all resolvconf implementations support -c
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if [ -e "$nocarrier_roaming_dir/$interface" ]; then
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rm -f "$nocarrier_roaming_dir/$interface"
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"$resolvconf" -c "$interface.*"
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fi
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elif $if_up || [ "$reason" = ROUTERADVERT ]; then
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add_resolv_conf
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elif $if_down; then
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remove_resolv_conf
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fi
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fi
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