From patchwork Thu Oct 19 19:23:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabiano Rosas X-Patchwork-Id: 1852066 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=hA5CZVOw; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=9p3c9jwv; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SBHkv1Rysz23jP for ; Fri, 20 Oct 2023 06:26:15 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtYdA-0006vN-Ex; Thu, 19 Oct 2023 15:24:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qtYd9-0006sa-Hf for qemu-devel@nongnu.org; Thu, 19 Oct 2023 15:24:27 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qtYd7-0004vV-OQ for qemu-devel@nongnu.org; Thu, 19 Oct 2023 15:24:27 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 873FB21A64; Thu, 19 Oct 2023 19:24:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1697743464; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=www8fo81f41IKRgN0+jBOpR5D1OjUdrdnwpIHg2ymKQ=; b=hA5CZVOwbvF35MgEgMd6w+HJENUCfoxwNUHg/LxdI2RKphaJ+g67zZd8VTPV8GPkXkJSpe IQfOd+uj07ywCbgK242MRkLWZvYH0/wL9c6ZZQhs9D9NDmKw4N7Ht9wbrVbsVhDp/cI+n1 xSiD56sl6pzMyW3iRi8EwIjBpYOrrS4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1697743464; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=www8fo81f41IKRgN0+jBOpR5D1OjUdrdnwpIHg2ymKQ=; b=9p3c9jwvn8IA8BDE9rPOmR3ATnXCmYfBLR1vII+yNAJJWvpz6ewXiYwlkPHE8Wvig+H2wD rzN+HfC7e+6qwHCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 6019C1357F; Thu, 19 Oct 2023 19:24:21 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gLcSC2WCMWWWEwAAMHmgww (envelope-from ); Thu, 19 Oct 2023 19:24:21 +0000 From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: prerna.saxena@nutanix.com, dgilbert@redhat.com, pbonzini@redhat.com, berrange@redhat.com, armbru@redhat.com, eblake@redhat.com, manish.mishra@nutanix.com, aravind.retnakaran@nutanix.com, Het Gala , Juan Quintela , Peter Xu , Leonardo Bras Subject: [PATCH v14 07/14] migration: convert exec backend to accept MigrateAddress. Date: Thu, 19 Oct 2023 16:23:46 -0300 Message-Id: <20231019192353.31500-8-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231019192353.31500-1-farosas@suse.de> References: <20231019192353.31500-1-farosas@suse.de> MIME-Version: 1.0 Authentication-Results: smtp-out1.suse.de; none X-Spam-Score: -2.10 X-Spamd-Result: default: False [-2.10 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_MISSING_CHARSET(2.50)[]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; NEURAL_HAM_LONG(-3.00)[-1.000]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCPT_COUNT_TWELVE(0.00)[13]; MID_CONTAINS_FROM(1.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-3.00)[100.00%] Received-SPF: pass client-ip=195.135.220.28; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Het Gala Exec transport backend for 'migrate'/'migrate-incoming' QAPIs accept new wire protocol of MigrateAddress struct. It is achived by parsing 'uri' string and storing migration parameters required for exec connection into strList struct. Suggested-by: Aravind Retnakaran Signed-off-by: Het Gala Signed-off-by: Fabiano Rosas --- migration/exec.c | 73 +++++++++++++++++++++++++++++++------------ migration/exec.h | 4 +-- migration/migration.c | 8 ++--- 3 files changed, 59 insertions(+), 26 deletions(-) diff --git a/migration/exec.c b/migration/exec.c index 32f5143dfd..47d2f3b8fb 100644 --- a/migration/exec.c +++ b/migration/exec.c @@ -39,20 +39,51 @@ const char *exec_get_cmd_path(void) } #endif -void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) +/* provides the length of strList */ +static int +str_list_length(strList *list) +{ + int len = 0; + strList *elem; + + for (elem = list; elem != NULL; elem = elem->next) { + len++; + } + + return len; +} + +static void +init_exec_array(strList *command, char **argv, Error **errp) +{ + int i = 0; + strList *lst; + + for (lst = command; lst; lst = lst->next) { + argv[i++] = lst->value; + } + + argv[i] = NULL; + return; +} + +void exec_start_outgoing_migration(MigrationState *s, strList *command, + Error **errp) { QIOChannel *ioc; -#ifdef WIN32 - const char *argv[] = { exec_get_cmd_path(), "/c", command, NULL }; -#else - const char *argv[] = { "/bin/sh", "-c", command, NULL }; -#endif + int length = str_list_length(command); + g_auto(GStrv) argv = (char **) g_new0(const char *, length + 1); - trace_migration_exec_outgoing(command); - ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, - O_RDWR, - errp)); + init_exec_array(command, argv, errp); + g_autofree char *new_command = g_strjoinv(" ", (char **)argv); + + trace_migration_exec_outgoing(new_command); + ioc = QIO_CHANNEL( + qio_channel_command_new_spawn( + (const char * const *) g_steal_pointer(&argv), + O_RDWR, + errp)); if (!ioc) { return; } @@ -71,20 +102,22 @@ static gboolean exec_accept_incoming_migration(QIOChannel *ioc, return G_SOURCE_REMOVE; } -void exec_start_incoming_migration(const char *command, Error **errp) +void exec_start_incoming_migration(strList *command, Error **errp) { QIOChannel *ioc; -#ifdef WIN32 - const char *argv[] = { exec_get_cmd_path(), "/c", command, NULL }; -#else - const char *argv[] = { "/bin/sh", "-c", command, NULL }; -#endif + int length = str_list_length(command); + g_auto(GStrv) argv = (char **) g_new0(const char *, length + 1); - trace_migration_exec_incoming(command); - ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, - O_RDWR, - errp)); + init_exec_array(command, argv, errp); + g_autofree char *new_command = g_strjoinv(" ", (char **)argv); + + trace_migration_exec_incoming(new_command); + ioc = QIO_CHANNEL( + qio_channel_command_new_spawn( + (const char * const *) g_steal_pointer(&argv), + O_RDWR, + errp)); if (!ioc) { return; } diff --git a/migration/exec.h b/migration/exec.h index 736cd71028..3107f205e3 100644 --- a/migration/exec.h +++ b/migration/exec.h @@ -23,8 +23,8 @@ #ifdef WIN32 const char *exec_get_cmd_path(void); #endif -void exec_start_incoming_migration(const char *host_port, Error **errp); +void exec_start_incoming_migration(strList *host_port, Error **errp); -void exec_start_outgoing_migration(MigrationState *s, const char *host_port, +void exec_start_outgoing_migration(MigrationState *s, strList *host_port, Error **errp); #endif diff --git a/migration/migration.c b/migration/migration.c index 75a275569b..0f16910156 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -511,8 +511,8 @@ static void qemu_start_incoming_migration(const char *uri, Error **errp) } else if (channel->transport == MIGRATION_ADDRESS_TYPE_RDMA) { rdma_start_incoming_migration(&channel->u.rdma, errp); #endif - } else if (strstart(uri, "exec:", &p)) { - exec_start_incoming_migration(p, errp); + } else if (channel->transport == MIGRATION_ADDRESS_TYPE_EXEC) { + exec_start_incoming_migration(channel->u.exec.args, errp); } else if (strstart(uri, "file:", &p)) { file_start_incoming_migration(p, errp); } else { @@ -1785,8 +1785,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk, } else if (channel->transport == MIGRATION_ADDRESS_TYPE_RDMA) { rdma_start_outgoing_migration(s, &channel->u.rdma, &local_err); #endif - } else if (strstart(uri, "exec:", &p)) { - exec_start_outgoing_migration(s, p, &local_err); + } else if (channel->transport == MIGRATION_ADDRESS_TYPE_EXEC) { + exec_start_outgoing_migration(s, channel->u.exec.args, &local_err); } else if (strstart(uri, "file:", &p)) { file_start_outgoing_migration(s, p, &local_err); } else {