From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 71E061FF183 for ; Wed, 16 Jul 2025 15:18:50 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 56F1B11FD7; Wed, 16 Jul 2025 15:19:00 +0200 (CEST) From: Gabriel Goller To: pve-devel@lists.proxmox.com Date: Wed, 16 Jul 2025 15:08:05 +0200 Message-Id: <20250716130837.585796-45-g.goller@proxmox.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250716130837.585796-1-g.goller@proxmox.com> References: <20250716130837.585796-1-g.goller@proxmox.com> MIME-Version: 1.0 X-SPAM-LEVEL: Spam detection results: 0 AWL -0.011 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_MSPIKE_H2 0.001 Average reputation (+2) SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH pve-network v5 10/21] sdn: frr: add daemon status to frr helper X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" From: Stefan Hanreich Add functions that allow reading and manipulating values in the /etc/frr/daemons file. We need this for en/disabling daemons depending on which fabric types are configured. We enable daemons dynamically, depending on the currently configured fabrics. If a daemon is enabled but all fabrics using it get deleted, we disable them as well. The helper works by iterating over the lines of the daemons file from FRR, parsing the key and checking if the key is managed by the SDN configuration, then sets it. As a safeguard, keys that can be changed by SDN have to be explicitly configured in the respective hash of the Frr module. Co-authored-by: Gabriel Goller Signed-off-by: Stefan Hanreich --- src/PVE/Network/SDN.pm | 18 +++++++++- src/PVE/Network/SDN/Fabrics.pm | 15 ++++++++ src/PVE/Network/SDN/Frr.pm | 64 ++++++++++++++++++++++++++++++++++ 3 files changed, 96 insertions(+), 1 deletion(-) diff --git a/src/PVE/Network/SDN.pm b/src/PVE/Network/SDN.pm index b321013708a9..bd6f7a28dd54 100644 --- a/src/PVE/Network/SDN.pm +++ b/src/PVE/Network/SDN.pm @@ -293,16 +293,32 @@ sub generate_frr_raw_config { return $raw_config; } +=head3 get_frr_daemon_status(\%fabric_config) + +Returns a hash that indicates which FRR daemons, that are managed by SDN, should +be enabled / disabled. + +=cut + +sub get_frr_daemon_status { + my ($fabric_config) = @_; + + return PVE::Network::SDN::Fabrics::get_frr_daemon_status($fabric_config); +} + sub generate_frr_config { my ($apply) = @_; my $running_config = PVE::Network::SDN::running_config(); my $fabric_config = PVE::Network::SDN::Fabrics::config(1); + my $daemon_status = PVE::Network::SDN::get_frr_daemon_status($fabric_config); + my $needs_restart = PVE::Network::SDN::Frr::set_daemon_status($daemon_status, 1); + my $raw_config = PVE::Network::SDN::generate_frr_raw_config($running_config, $fabric_config); PVE::Network::SDN::Frr::write_raw_config($raw_config); - PVE::Network::SDN::Frr::apply() if $apply; + PVE::Network::SDN::Frr::apply($needs_restart) if $apply; } sub generate_dhcp_config { diff --git a/src/PVE/Network/SDN/Fabrics.pm b/src/PVE/Network/SDN/Fabrics.pm index e5e3428b278e..94f4e97a2f46 100644 --- a/src/PVE/Network/SDN/Fabrics.pm +++ b/src/PVE/Network/SDN/Fabrics.pm @@ -44,6 +44,21 @@ sub write_config { cfs_write_file("sdn/fabrics.cfg", $config->to_raw(), 1); } +sub get_frr_daemon_status { + my ($fabric_config) = @_; + + my $daemon_status = {}; + my $nodename = PVE::INotify::nodename(); + + my $enabled_daemons = $fabric_config->enabled_daemons($nodename); + + for my $daemon (@$enabled_daemons) { + $daemon_status->{$daemon} = 1; + } + + return $daemon_status; +} + sub generate_frr_raw_config { my ($fabric_config) = @_; diff --git a/src/PVE/Network/SDN/Frr.pm b/src/PVE/Network/SDN/Frr.pm index 2698928c9b03..62a71e50d9bf 100644 --- a/src/PVE/Network/SDN/Frr.pm +++ b/src/PVE/Network/SDN/Frr.pm @@ -109,6 +109,70 @@ sub restart { run_command(['systemctl', 'restart', 'frr'], errfunc => $err); } +my $SDN_DAEMONS_DEFAULT = { + ospfd => 0, + fabricd => 0, +}; + +=head3 set_daemon_status(\%daemons, $set_default) + +Sets the status of all daemons supplied in C<\%daemons>. This only works for +daemons managed by SDN, as indicated in the C<$SDN_DAEMONS_DEFAULT> constant. If +a daemon is supplied that isn't managed by SDN then this command will fail. If +C<$set_default> is set, then additionally all sdn-managed daemons that are +missing in C<\%daemons> are reset to their default value. It returns whether the +status of any daemons has changed, which indicates that a restart of the daemon +is required, rather than only a reload. + +=cut + +sub set_daemon_status { + my ($daemon_status, $set_default) = @_; + + my $daemons_file = "/etc/frr/daemons"; + die "daemons file does not exist" if !-e $daemons_file; + + for my $daemon (keys %$daemon_status) { + die "$daemon is not SDN managed" if !defined $SDN_DAEMONS_DEFAULT->{$daemon}; + } + + if ($set_default) { + for my $daemon (keys %$SDN_DAEMONS_DEFAULT) { + $daemon_status->{$daemon} = $SDN_DAEMONS_DEFAULT->{$daemon} + if !defined($daemon_status->{$daemon}); + } + } + + my $old_config = PVE::Tools::file_get_contents($daemons_file); + my $new_config = ""; + + my $changed = 0; + + my @lines = split(/\n/, $old_config); + + for my $line (@lines) { + if ($line =~ m/^([a-z_]+)=/) { + my $key = $1; + my $status = $daemon_status->{$key}; + + if (defined $status) { + my $value = $status ? "yes" : "no"; + my $new_line = "$key=$value"; + + $changed = 1 if $new_line ne $line; + + $line = $new_line; + } + } + + $new_config .= "$line\n"; + } + + PVE::Tools::file_set_contents($daemons_file, $new_config); + + return $changed; +} + =head3 to_raw_config(\%frr_config) Converts a given C<\%frr_config> to the raw config format. -- 2.39.5 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel