From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759435Ab2IEUc3 (ORCPT ); Wed, 5 Sep 2012 16:32:29 -0400 Received: from p3plsmtps2ded01.prod.phx3.secureserver.net ([208.109.80.58]:53478 "HELO p3plsmtps2ded01-02.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1759371Ab2IEUc0 (ORCPT ); Wed, 5 Sep 2012 16:32:26 -0400 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, ben@decadent.org.uk, thozza@redhat.com, dcbw@redhat.com Cc: "K. Y. Srinivasan" Subject: [PATCH V5 2/6] Tools: hv: Gather DHCP information Date: Wed, 5 Sep 2012 13:50:11 -0700 Message-Id: <1346878215-30863-2-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1346878215-30863-1-git-send-email-kys@microsoft.com> References: <1346878188-30822-1-git-send-email-kys@microsoft.com> <1346878215-30863-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Collect information on dhcp setting for the specified interface. We invoke an external (Distro specific) script to get this information. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang --- tools/hv/hv_kvp_daemon.c | 31 +++++++++++++++++++++++++++++++ 1 files changed, 31 insertions(+), 0 deletions(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index cfa23a1..6fb2c1c 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -524,6 +524,9 @@ static void kvp_get_ipconfig_info(char *if_name, struct hv_kvp_ipaddr_value *buffer) { char cmd[512]; + char dhcp_info[128]; + char *p; + FILE *file; /* * Get the address of default gateway (ipv4). @@ -572,6 +575,34 @@ static void kvp_get_ipconfig_info(char *if_name, */ kvp_process_ipconfig_file(cmd, (char *)buffer->dns_addr, (MAX_IP_ADDR_SIZE * 2), INET_ADDRSTRLEN, 0); + + /* + * Gather the DHCP state. + * We will gather this state by invoking an external script. + * The parameter to the script is the interface name. + * Here is the expected output: + * + * Enabled: DHCP enabled. + */ + + sprintf(cmd, "%s %s", "hv_get_dhcp_info", if_name); + + file = popen(cmd, "r"); + if (file == NULL) + return; + + p = fgets(dhcp_info, sizeof(dhcp_info), file); + if (p == NULL) { + pclose(file); + return; + } + + if (!strncmp(p, "Enabled", 7)) + buffer->dhcp_enabled = 1; + else + buffer->dhcp_enabled = 0; + + pclose(file); } -- 1.7.4.1