Marc S. Weidner
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
89 lines
2.7 KiB
Bash
89 lines
2.7 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.installer
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# SPDX-Security-Contact: security@coresecret.eu
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guard_sourcing || return "${ERR_GUARD_SOURCE}"
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#######################################
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# Configure the '/etc/hostname' | '/etc/hosts' | '/etc/mailname' files.
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# Globals:
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# RECOVERY
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# TARGET
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# VAR_FINAL_FQDN
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# VAR_FINAL_IPV4
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# VAR_FINAL_IPV6
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# VAR_LINK_IPV6
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# VAR_RUN_RECOVERY
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# network_ipv6
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# Arguments:
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# None
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# Returns:
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# 0: on success
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#######################################
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setup_hostname() {
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### Declare Arrays, HashMaps, and Variables.
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declare var_target="${TARGET}"
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### Check for TARGET / RECOVERY.
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[[ "${VAR_RUN_RECOVERY}" == "true" ]] && var_target="${RECOVERY}"
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### Create the '${var_target}/etc/hostname' file.
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cat << EOF >| "${var_target}/etc/hostname"
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${VAR_FINAL_FQDN}
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EOF
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chmod 0644 "${var_target}/etc/hostname"
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do_log "info" "file_only" "4030() File generated: '${var_target}/etc/hostname' | hostname '${VAR_FINAL_FQDN}'."
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### Create the '${var_target}/etc/mailname' file.
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cat << EOF >| "${var_target}/etc/mailname"
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${VAR_FINAL_FQDN}
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EOF
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chmod 0644 "${var_target}/etc/mailname"
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do_log "info" "file_only" "4030() File generated: '${var_target}/etc/mailname' | mailname '${VAR_FINAL_FQDN}'."
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### Generate '${var_target}/etc/hosts' basic IPv4 entries
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cat << EOF >| "${var_target}/etc/hosts"
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127.0.0.1 localhost
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${VAR_FINAL_IPV4} ${VAR_FINAL_FQDN}
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EOF
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chmod 0644 "${var_target}/etc/hosts"
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do_log "info" "file_only" "4030() File generated: '${var_target}/etc/hosts' with basic IPv4 entries."
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### Generate '${var_target}/etc/hosts' basic IPv6 entries
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if [[ "${VAR_LINK_IPV6,,}" == "true" || "${network_ipv6,,}" == "true" ]]; then
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cat << EOF >> "${var_target}/etc/hosts"
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# The following lines are desirable for IPv6 capable hosts
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::1 localhost ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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ff02::3 ip6-allhosts
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${VAR_FINAL_IPV6} ${VAR_FINAL_FQDN}
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EOF
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do_log "info" "file_only" "4030() File updated: '${var_target}/etc/hosts' with basic IPv6 entries."
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fi
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guard_dir; return 0
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}
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### Prevents accidental 'unset -f'.
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# shellcheck disable=SC2034
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readonly -f setup_hostname
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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