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FreeNAS.pm
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FreeNAS.pm
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package PVE::Storage::LunCmd::FreeNAS;
use strict;
use warnings;
use Data::Dumper;
use PVE::SafeSyslog;
use IO::Socket::SSL;
use LWP::UserAgent;
use HTTP::Request;
use REST::Client;
use MIME::Base64;
use JSON;
# Global variable definitions
my $MAX_LUNS = 255; # Max LUNS per target on the iSCSI server
my $freenas_server_list = undef; # API connection HashRef using the IP address of the server
my $freenas_rest_connection = undef; # Pointer to entry in $freenas_server_list
my $freenas_global_config_list = undef; # IQN HashRef using the IP address of the server
my $freenas_global_config = undef; # Pointer to entry in $freenas_global_config_list
my $dev_prefix = "";
my $product_name = undef;
my $apiping = '/api/v1.0/system/version/'; # Initial API method for setup
my $runawayprevent = 0; # Recursion prevention variable
# FreeNAS API definitions
my $freenas_api_version = "v1.0"; # Default to v1.0 of the API's
my $freenas_api_methods = undef; # API Methods Nested HASH Ref
my $freenas_api_variables = undef; # API Variable Nested HASH Ref
my $truenas_version = undef;
my $truenas_release_type = "Production";
# FreeNAS/TrueNAS (CORE) API Versioning HashRef Matrix
my $freenas_api_version_matrix = {
"v1.0" => {
"methods" => {
"config" => {
"resource" => "/api/v1.0/services/iscsi/globalconfiguration/",
},
"target" => {
"resource" => "/api/v1.0/services/iscsi/target/",
},
"extent" => {
"resource" => "/api/v1.0/services/iscsi/extent/",
"post_body" => {
"iscsi_target_extent_type" => "Disk",
"iscsi_target_extent_name" => "\$name",
"iscsi_target_extent_disk" => "\$device",
},
},
"targetextent" => {
"resource" => "/api/v1.0/services/iscsi/targettoextent/",
"post_body" => {
"iscsi_target" => "\$target_id",
"iscsi_extent" => "\$extent_id",
"iscsi_lunid" => "\$lun_id",
},
},
},
"variables" => {
"basename" => "iscsi_basename",
"lunid" => "iscsi_lunid",
"extentid" => "iscsi_extent",
"targetid" => "iscsi_target",
"extentpath" => "iscsi_target_extent_path",
"extentnaa" => "iscsi_target_extent_naa",
"targetname" => "iscsi_target_name",
}
},
"v2.0" => {
"methods" => {
"config" => {
"resource" => "/api/v2.0/iscsi/global",
},
"target" => {
"resource" => "/api/v2.0/iscsi/target/",
},
"extent" => {
"resource" => "/api/v2.0/iscsi/extent/",
"delete_body" => {
"remove" => \1,
"force" => \1,
},
"post_body" => {
"type" => "DISK",
"name" => "\$name",
"disk" => "\$device",
},
},
"targetextent" => {
"resource" => "/api/v2.0/iscsi/targetextent/",
"delete_body" => {
"force" => \1,
},
"post_body" => {
"target" => "\$target_id",
"extent" => "\$extent_id",
"lunid" => "\$lun_id",
},
},
},
"variables" => {
"basename" => "basename",
"lunid" => "lunid",
"extentid" => "extent",
"targetid" => "target",
"extentpath" => "path",
"extentnaa" => "naa",
"targetname" => "name",
},
},
};
#
#
#
sub get_base {
return '/dev/zvol';
}
#
# Subroutine called from ZFSPlugin.pm
#
sub run_lun_command {
my ($scfg, $timeout, $method, @params) = @_;
syslog("info",(caller(0))[3] . " : $method(@params)");
if (defined($scfg->{'truenas_token_auth'}) && $scfg->{'truenas_token_auth'}) {
if (!defined($scfg->{'truenas_secret'})) {
die "Undefined `truenas_secret` variable.";
}
} elsif (!defined($scfg->{'freenas_user'}) || !defined($scfg->{'freenas_password'})) {
die "Undefined `freenas_user` and/or `freenas_password` variables.";
}
if (!defined $freenas_server_list->{defined($scfg->{freenas_apiv4_host}) ? $scfg->{freenas_apiv4_host} : $scfg->{portal}}) {
freenas_api_check($scfg);
}
if($method eq "create_lu") {
return run_create_lu($scfg, $timeout, $method, @params);
}
if($method eq "delete_lu") {
return run_delete_lu($scfg, $timeout, $method, @params);
}
if($method eq "import_lu") {
return run_create_lu($scfg, $timeout, $method, @params);
}
if($method eq "modify_lu") {
return run_modify_lu($scfg, $timeout, $method, @params);
}
if($method eq "add_view") {
return run_add_view($scfg, $timeout, $method, @params);
}
if($method eq "list_view") {
return run_list_view($scfg, $timeout, $method, @params);
}
if($method eq "list_extent") {
return run_list_extent($scfg, $timeout, $method, @params);
}
if($method eq "list_lu") {
return run_list_lu($scfg, $timeout, $method, "name", @params);
}
syslog("error",(caller(0))[3] . " : unknown method $method");
return undef;
}
#
#
#
sub run_add_view {
return '';
}
#
# a modify_lu occur by example on a zvol resize. we just need to destroy and recreate the lun with the same zvol.
# Be careful, the first param is the new size of the zvol, we must shift params
#
sub run_modify_lu {
my ($scfg, $timeout, $method, @params) = @_;
syslog("info", (caller(0))[3] . " : called");
shift(@params);
run_delete_lu($scfg, $timeout, $method, @params);
return run_create_lu($scfg, $timeout, $method, @params);
}
#
#
#
sub run_list_view {
my ($scfg, $timeout, $method, @params) = @_;
syslog("info", (caller(0))[3] . " : called");
return run_list_lu($scfg, $timeout, $method, "lun-id", @params);
}
#
#
# Optimized
sub run_list_lu {
my ($scfg, $timeout, $method, $result_value_type, @params) = @_;
my $object = $params[0];
my $result = undef;
my $luns = freenas_list_lu($scfg);
syslog("info", (caller(0))[3] . " : called with (method: '$method'; result_value_type: '$result_value_type'; param[0]: '$object')");
$object =~ s/^\Q$dev_prefix//;
syslog("info", (caller(0))[3] . " : TrueNAS object to find: '$object'");
if (defined($luns->{$object})) {
my $lu_object = $luns->{$object};
$result = $result_value_type eq "lun-id" ? $lu_object->{$freenas_api_variables->{'lunid'}} : $dev_prefix . $lu_object->{$freenas_api_variables->{'extentpath'}};
syslog("info",(caller(0))[3] . " '$object' with key '$result_value_type' found with value: '$result'");
} else {
syslog("info", (caller(0))[3] . " '$object' with key '$result_value_type' was not found");
}
return $result;
}
#
#
# Optimzed
sub run_list_extent {
my ($scfg, $timeout, $method, @params) = @_;
my $object = $params[0];
syslog("info", (caller(0))[3] . " : called with (method: '$method'; params[0]: '$object')");
my $result = undef;
my $luns = freenas_list_lu($scfg);
$object =~ s/^\Q$dev_prefix//;
syslog("info", (caller(0))[3] . " TrueNAS object to find: '$object'");
if (defined($luns->{$object})) {
my $lu_object = $luns->{$object};
$result = $lu_object->{$freenas_api_variables->{'extentnaa'}};
syslog("info",(caller(0))[3] . " '$object' wtih key '$freenas_api_variables->{'extentnaa'}' found with value: '$result'");
} else {
syslog("info",(caller(0))[3] . " '$object' with key '$freenas_api_variables->{'extentnaa'}' was not found");
}
return $result;
}
#
#
#
sub run_create_lu {
my ($scfg, $timeout, $method, @params) = @_;
my $lun_path = $params[0];
syslog("info", (caller(0))[3] . " : called with (method=$method; param[0]=$lun_path)");
my $lun_id = freenas_get_first_available_lunid($scfg);
die "Maximum number of LUNs per target is $MAX_LUNS" if scalar $lun_id >= $MAX_LUNS;
die "$params[0]: LUN $lun_path exists" if defined(run_list_lu($scfg, $timeout, $method, "name", @params));
my $target_id = freenas_get_targetid($scfg);
die "Unable to find the target id for $scfg->{target}" if !defined($target_id);
# Create the extent
my $extent = freenas_iscsi_create_extent($scfg, $lun_path);
# Associate the new extent to the target
my $link = freenas_iscsi_create_target_to_extent($scfg, $target_id, $extent->{'id'}, $lun_id);
if (defined($link)) {
syslog("info","FreeNAS::create_lu(lun_path=$lun_path, lun_id=$lun_id) : successful");
} else {
die "Unable to create lun $lun_path";
}
return "";
}
#
#
# Optimzied
sub run_delete_lu {
my ($scfg, $timeout, $method, @params) = @_;
my $lun_path = $params[0];
syslog("info", (caller(0))[3] . " : called with (method: '$method'; param[0]: '$lun_path')");
my $luns = freenas_list_lu($scfg);
my $lun = undef;
my $link = undef;
$lun_path =~ s/^\Q$dev_prefix//;
if (defined($luns->{$lun_path})) {
$lun = $luns->{$lun_path};
syslog("info",(caller(0))[3] . " lun: '$lun_path' found");
} else {
die "Unable to find the lun $lun_path for $scfg->{target}";
}
my $target_id = freenas_get_targetid($scfg);
die "Unable to find the target id for $scfg->{target}" if !defined($target_id);
# find the target to extent
my $target2extents = freenas_iscsi_get_target_to_extent($scfg);
syslog("info", (caller(0))[3] . " : searching for 'targetextent' with (target_id=$target_id; lun_id=$lun->{$freenas_api_variables->{'lunid'}}; extent_id=$lun->{id})");
foreach my $item (@$target2extents) {
if($item->{$freenas_api_variables->{'targetid'}} == $target_id &&
$item->{$freenas_api_variables->{'lunid'}} == $lun->{$freenas_api_variables->{'lunid'}} &&
$item->{$freenas_api_variables->{'extentid'}} == $lun->{'id'}) {
$link = $item;
syslog("info", (caller(0))[3] . " : found 'targetextent'(target_id=$item->{$freenas_api_variables->{'targetid'}}; lun_id=$item->{$freenas_api_variables->{'lunid'}}; extent_id=$item->{$freenas_api_variables->{'extentid'}})");
last;
}
}
die "Unable to find the link for the lun $lun_path for $scfg->{target}" if !defined($link);
# Remove the extent
my $remove_extent = freenas_iscsi_remove_extent($scfg, $lun->{'id'});
# Remove the link
my $remove_link = freenas_iscsi_remove_target_to_extent($scfg, $link->{'id'});
if($remove_link == 1 && $remove_extent == 1) {
syslog("info", (caller(0))[3] . "(lun_path=$lun_path) : successful");
} else {
die "Unable to delete lun $lun_path";
}
return "";
}
sub freenas_api_connect {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
my $scheme = $scfg->{freenas_use_ssl} ? "https" : "http";
my $apihost = defined($scfg->{freenas_apiv4_host}) ? $scfg->{freenas_apiv4_host} : $scfg->{portal};
if (! defined $freenas_server_list->{$apihost}) {
$freenas_server_list->{$apihost} = REST::Client->new();
}
$freenas_server_list->{$apihost}->setHost($scheme . '://' . $apihost);
$freenas_server_list->{$apihost}->addHeader('Content-Type', 'application/json');
if (defined($scfg->{'truenas_token_auth'})) {
syslog("info", (caller(0))[3] . " : Authentication using Bearer Token Auth");
$freenas_server_list->{$apihost}->addHeader('Authorization', 'Bearer ' . $scfg->{truenas_secret});
} else {
syslog("info", (caller(0))[3] . " : Authentication using Basic Auth");
$freenas_server_list->{$apihost}->addHeader('Authorization', 'Basic ' . encode_base64($scfg->{freenas_user} . ':' . $scfg->{freenas_password}));
}
# If using SSL, don't verify SSL certs
if ($scfg->{freenas_use_ssl}) {
$freenas_server_list->{$apihost}->getUseragent()->ssl_opts(verify_hostname => 0);
$freenas_server_list->{$apihost}->getUseragent()->ssl_opts(SSL_verify_mode => SSL_VERIFY_NONE);
}
# Check if the APIs are accessable via the selected host and scheme
my $api_response = $freenas_server_list->{$apihost}->request('GET', $apiping);
my $code = $api_response->responseCode();
my $type = $api_response->responseHeader('Content-Type');
syslog("info", (caller(0))[3] . " : REST connection header Content-Type:'" . $type . "'");
# Make sure we are not recursion calling.
if ($runawayprevent > 2) {
freenas_api_log_error($freenas_server_list->{$apihost});
die "Loop recursion prevention";
# Successful connection
} elsif ($code == 200 && ($type =~ /^text\/plain/ || $type =~ /^application\/json/)) {
syslog("info", (caller(0))[3] . " : REST connection successful to '" . $apihost . "' using the '" . $scheme . "' protocol");
$runawayprevent = 0;
# A 302 or 200 (We already check for the correct 'type' above with a 200 so why add additional conditionals).
# So change to v2.0 APIs.
} elsif ($code == 302 || $code == 200) {
syslog("info", (caller(0))[3] . " : Changing to v2.0 API's");
$runawayprevent++;
$apiping =~ s/v1\.0/v2\.0/;
freenas_api_connect($scfg);
# A 307 from FreeNAS means rediect http to https.
} elsif ($code == 307) {
syslog("info", (caller(0))[3] . " : Redirecting to HTTPS protocol");
$runawayprevent++;
$scfg->{freenas_use_ssl} = 1;
freenas_api_connect($scfg);
# For now, any other code we fail.
} else {
freenas_api_log_error($freenas_server_list->{$apihost});
die "Unable to connect to the FreeNAS API service at '" . $apihost . "' using the '" . $scheme . "' protocol";
}
$freenas_rest_connection = $freenas_server_list->{$apihost};
return;
}
#
# Check to see what FreeNAS version we are running and set
# the FreeNAS.pm to use the correct API version of FreeNAS
#
sub freenas_api_check {
my ($scfg, $timeout) = @_;
my $result = {};
my $apihost = defined($scfg->{freenas_apiv4_host}) ? $scfg->{freenas_apiv4_host} : $scfg->{portal};
syslog("info", (caller(0))[3] . " : called");
if (! defined $freenas_rest_connection->{$apihost}) {
freenas_api_connect($scfg);
eval {
$result = decode_json($freenas_rest_connection->responseContent());
};
if ($@) {
$result = $freenas_rest_connection->responseContent();
} else {
$result = $freenas_rest_connection->responseContent();
}
$result =~ s/"//g;
syslog("info", (caller(0))[3] . " : successful : Server version: " . $result);
if ($result =~ /^(TrueNAS|FreeNAS)-(\d+)\.(\d+)\-U(\d+)(?(?=\.)\.(\d+))$/) {
$product_name = $1;
$truenas_version = sprintf("%02d%02d%02d%02d", $2, $3 || 0, $4 || 0, $5 || 0);
} elsif ($result =~ /^(TrueNAS)-(\d+)\.(\d+)(?(?=\-U\d+)-U(\d+)|-\w+)(?(?=\.).(\d+))$/) {
$product_name = $1;
$truenas_version = sprintf("%02d%02d%02d%02d", $2, $3 || 0, $4 || 0, $6 || 0);
$truenas_release_type = $5 || "Production";
} elsif ($result =~ /^(TrueNAS-SCALE)-(\d+)\.(\d+)(?(?=\-)-(\w+))\.(\d+)(?(?=\.)\.(\d+))(?(?=\-)-(\d+))$/) {
$product_name = $1;
$truenas_version = sprintf("%02d%02d%02d%02d", $2, $3 || 0, $5 || 0, $7 || 0);
$truenas_release_type = $4 || "Production";
} else {
$product_name = "Unknown";
$truenas_release_type = "Unknown";
syslog("error", (caller(0))[3] . " : Could not parse the version of TrueNAS.");
}
syslog("info", (caller(0))[3] . " : ". $product_name . " Unformatted Version: " . $truenas_version);
if ($truenas_version >= 11030100) {
$freenas_api_version = "v2.0";
$dev_prefix = "/dev/";
}
if ($truenas_release_type ne "Production") {
syslog("warn", (caller(0))[3] . " : The '" . $product_name . "' release type of '" . $truenas_release_type . "' may not worked due to unsupported changes.");
}
} else {
syslog("info", (caller(0))[3] . " : REST Client already initialized");
}
syslog("info", (caller(0))[3] . " : Using " . $product_name . " API version " . $freenas_api_version);
$freenas_api_methods = $freenas_api_version_matrix->{$freenas_api_version}->{'methods'};
$freenas_api_variables = $freenas_api_version_matrix->{$freenas_api_version}->{'variables'};
$freenas_global_config = $freenas_global_config_list->{$apihost} = (!defined($freenas_global_config_list->{$apihost})) ? freenas_iscsi_get_globalconfiguration($scfg) : $freenas_global_config_list->{$apihost};
return;
}
#
### FREENAS API CALLING ROUTINE ###
#
sub freenas_api_call {
my ($scfg, $method, $path, $data) = @_;
my $apihost = defined($scfg->{freenas_apiv4_host}) ? $scfg->{freenas_apiv4_host} : $scfg->{portal};
syslog("info", (caller(0))[3] . " : called for host '" . $apihost . "'");
$method = uc($method);
if (! $method =~ /^(?>GET|DELETE|POST)$/) {
syslog("info", (caller(0))[3] . " : Invalid HTTP RESTful service method '$method'");
die "Invalid HTTP RESTful service method '$method' used.";
}
if (! defined $freenas_server_list->{$apihost}) {
freenas_api_check($scfg);
}
$freenas_rest_connection = $freenas_server_list->{$apihost};
$freenas_global_config = $freenas_global_config_list->{$apihost};
my $json_data = (defined $data) ? encode_json($data) : undef;
$freenas_rest_connection->request($method, $path, $json_data);
syslog("info", (caller(0))[3] . " : successful");
return;
}
#
# Writes the Response and Content to SysLog
#
sub freenas_api_log_error {
my ($rest_connection) = @_;
my $connection = ((defined $rest_connection) ? $rest_connection : $freenas_rest_connection);
syslog("info","[ERROR]FreeNAS::API::" . (caller(1))[3] . " : Response code: " . $connection->responseCode());
syslog("info","[ERROR]FreeNAS::API::" . (caller(1))[3] . " : Response content: " . $connection->responseContent());
return 1;
}
#
#
#
sub freenas_iscsi_get_globalconfiguration {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
freenas_api_call($scfg, 'GET', $freenas_api_methods->{'config'}->{'resource'}, $freenas_api_methods->{'config'}->{'get'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", (caller(0))[3] . " : target_basename=" . $result->{$freenas_api_variables->{'basename'}});
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Returns a list of all extents.
# http://api.freenas.org/resources/iscsi/index.html#get--api-v1.0-services-iscsi-extent-
#
sub freenas_iscsi_get_extent {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
freenas_api_call($scfg, 'GET', $freenas_api_methods->{'extent'}->{'resource'} . "?limit=0", $freenas_api_methods->{'extent'}->{'get'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", (caller(0))[3] . " : successful");
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Create an extent on FreeNas
# http://api.freenas.org/resources/iscsi/index.html#create-resource
# Parameters:
# - target config (scfg)
# - lun_path
#
sub freenas_iscsi_create_extent {
my ($scfg, $lun_path) = @_;
syslog("info", (caller(0))[3] . " : called with (lun_path=$lun_path)");
my $name = $lun_path;
$name =~ s/^.*\///; # all from last /
my $pool = $scfg->{'pool'};
# If TrueNAS-SCALE the slashes (/) need to be converted to dashes (-)
if ($product_name eq "TrueNAS-SCALE") {
$pool =~ s/\//-/g;
syslog("info", (caller(0))[3] . " : TrueNAS-SCALE slash to dash conversion '" . $pool ."'");
}
$name = $pool . ($product_name eq "TrueNAS-SCALE" ? '-' : '/') . $name;
syslog("info", (caller(0))[3] . " : " . $product_name . " extent '". $name . "'");
my $device = $lun_path;
$device =~ s/^\/dev\///; # strip /dev/
my $post_body = {};
while ((my $key, my $value) = each %{$freenas_api_methods->{'extent'}->{'post_body'}}) {
$post_body->{$key} = ($value =~ /^\$.+$/) ? eval $value : $value;
}
freenas_api_call($scfg, 'POST', $freenas_api_methods->{'extent'}->{'resource'}, $post_body);
my $code = $freenas_rest_connection->responseCode();
if ($code == 200 || $code == 201) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", "FreeNAS::API::create_extent(lun_path=" . $result->{$freenas_api_variables->{'extentpath'}} . ") : successful");
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Remove an extent by it's id
# http://api.freenas.org/resources/iscsi/index.html#delete-resource
# Parameters:
# - scfg
# - extent_id
#
sub freenas_iscsi_remove_extent {
my ($scfg, $extent_id) = @_;
syslog("info", (caller(0))[3] . " : called with (extent_id=$extent_id)");
freenas_api_call($scfg, 'DELETE', $freenas_api_methods->{'extent'}->{'resource'} . (($freenas_api_version eq "v2.0") ? "id/" : "") . "$extent_id/", $freenas_api_methods->{'extent'}->{'delete_body'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200 || $code == 204) {
syslog("info", (caller(0))[3] . "(extent_id=$extent_id) : successful");
return 1;
} else {
freenas_api_log_error();
return 0;
}
}
#
# Returns a list of all targets
# http://api.freenas.org/resources/iscsi/index.html#get--api-v1.0-services-iscsi-target-
#
sub freenas_iscsi_get_target {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
freenas_api_call($scfg, 'GET', $freenas_api_methods->{'target'}->{'resource'} . "?limit=0", $freenas_api_methods->{'target'}->{'get'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", (caller(0))[3] . " : successful");
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Returns a list of associated extents to targets
# http://api.freenas.org/resources/iscsi/index.html#get--api-v1.0-services-iscsi-targettoextent-
#
sub freenas_iscsi_get_target_to_extent {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
freenas_api_call($scfg, 'GET', $freenas_api_methods->{'targetextent'}->{'resource'} . "?limit=0", $freenas_api_methods->{'targetextent'}->{'get'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", (caller(0))[3] . " : successful");
# If 'iscsi_lunid' is undef then it is set to 'Auto' in FreeNAS
# which should be '0' in our eyes.
# This gave Proxmox 5.x and FreeNAS 11.1 a few issues.
foreach my $item (@$result) {
if (!defined($item->{$freenas_api_variables->{'lunid'}})) {
$item->{$freenas_api_variables->{'lunid'}} = 0;
syslog("info", (caller(0))[3] . " : change undef iscsi_lunid to 0");
}
}
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Associate a FreeNas extent to a FreeNas Target
# http://api.freenas.org/resources/iscsi/index.html#post--api-v1.0-services-iscsi-targettoextent-
# Parameters:
# - target config (scfg)
# - FreeNas Target ID
# - FreeNas Extent ID
# - Lun ID
#
sub freenas_iscsi_create_target_to_extent {
my ($scfg, $target_id, $extent_id, $lun_id) = @_;
syslog("info", (caller(0))[3] . " : called with (target_id=$target_id, extent_id=$extent_id, lun_id=$lun_id)");
my $post_body = {};
while ((my $key, my $value) = each %{$freenas_api_methods->{'targetextent'}->{'post_body'}}) {
$post_body->{$key} = ($value =~ /^\$.+$/) ? eval $value : $value;
}
freenas_api_call($scfg, 'POST', $freenas_api_methods->{'targetextent'}->{'resource'}, $post_body);
my $code = $freenas_rest_connection->responseCode();
if ($code == 200 || $code == 201) {
my $result = decode_json($freenas_rest_connection->responseContent());
syslog("info", (caller(0))[3] . "(target_id=$target_id, extent_id=$extent_id, lun_id=$lun_id) : successful");
return $result;
} else {
freenas_api_log_error();
return undef;
}
}
#
# Remove a Target to extent by it's id
# http://api.freenas.org/resources/iscsi/index.html#delete--api-v1.0-services-iscsi-targettoextent-(int-id)-
# Parameters:
# - scfg
# - link_id
#
sub freenas_iscsi_remove_target_to_extent {
my ($scfg, $link_id) = @_;
syslog("info", (caller(0))[3] . " : called with (link_id=$link_id)");
if ($freenas_api_version eq "v2.0") {
syslog("info", (caller(0))[3] . "(link_id=$link_id) : V2.0 API's so NOT Needed...successful");
return 1;
}
freenas_api_call($scfg, 'DELETE', $freenas_api_methods->{'targetextent'}->{'resource'} . (($freenas_api_version eq "v2.0") ? "id/" : "") . "$link_id/", $freenas_api_methods->{'targetextent'}->{'delete_body'});
my $code = $freenas_rest_connection->responseCode();
if ($code == 200 || $code == 204) {
syslog("info", (caller(0))[3] . "(link_id=$link_id) : successful");
return 1;
} else {
freenas_api_log_error();
return 0;
}
}
#
# Returns all luns associated to the current target defined by $scfg->{target}
# This method returns an array reference like "freenas_iscsi_get_extent" do
# but with an additionnal hash entry "iscsi_lunid" retrieved from "freenas_iscsi_get_target_to_extent"
#
sub freenas_list_lu {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
my $targets = freenas_iscsi_get_target($scfg);
my $target_id = freenas_get_targetid($scfg);
my %lun_hash;
my $iscsi_lunid = undef;
if(defined($target_id)) {
my $target2extents = freenas_iscsi_get_target_to_extent($scfg);
my $extents = freenas_iscsi_get_extent($scfg);
foreach my $item (@$target2extents) {
if($item->{$freenas_api_variables->{'targetid'}} == $target_id) {
foreach my $node (@$extents) {
if($node->{'id'} == $item->{$freenas_api_variables->{'extentid'}}) {
if ($item->{$freenas_api_variables->{'lunid'}} =~ /(\d+)/) {
if (defined($node)) {
$node->{$freenas_api_variables->{'lunid'}} .= "$1";
$lun_hash{$node->{$freenas_api_variables->{'extentpath'}}} = $node;
}
last;
} else {
syslog("warn", (caller(0))[3] . " : iscsi_lunid did not pass tainted testing");
}
}
}
}
}
}
syslog("info", (caller(0))[3] . " : successful");
return \%lun_hash;
}
#
# Returns the first available "lunid" (in all targets namespaces)
#
sub freenas_get_first_available_lunid {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
my $target_id = freenas_get_targetid($scfg);
my $target2extents = freenas_iscsi_get_target_to_extent($scfg);
my @luns = ();
foreach my $item (@$target2extents) {
push(@luns, $item->{$freenas_api_variables->{'lunid'}}) if ($item->{$freenas_api_variables->{'targetid'}} == $target_id);
}
my @sorted_luns = sort {$a <=> $b} @luns;
my $lun_id = 0;
# find the first hole, if not, give the +1 of the last lun
foreach my $lun (@sorted_luns) {
last if $lun != $lun_id;
$lun_id = $lun_id + 1;
}
syslog("info", (caller(0))[3] . " : $lun_id");
return $lun_id;
}
#
# Returns the target id on FreeNas of the currently configured target of this PVE storage
#
sub freenas_get_targetid {
my ($scfg) = @_;
syslog("info", (caller(0))[3] . " : called");
my $targets = freenas_iscsi_get_target($scfg);
my $target_id = undef;
foreach my $target (@$targets) {
my $iqn = $freenas_global_config->{$freenas_api_variables->{'basename'}} . ':' . $target->{$freenas_api_variables->{'targetname'}};
if($iqn eq $scfg->{target}) {
$target_id = $target->{'id'};
last;
}
}
syslog("info", (caller(0))[3] . " : successful : $target_id");
return $target_id;
}
1;