From mboxrd@z Thu Jan 1 00:00:00 1970 From: "K. Y. Srinivasan" Subject: [PATCH 09/14] Tools: hv: Gather DHCP information Date: Thu, 16 Aug 2012 17:45:20 -0700 Message-ID: <1345164325-5198-10-git-send-email-kys@microsoft.com> References: <1345164300-5146-1-git-send-email-kys@microsoft.com> <1345164325-5198-1-git-send-email-kys@microsoft.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1345164325-5198-1-git-send-email-kys@microsoft.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devel-bounces@linuxdriverproject.org Sender: devel-bounces@linuxdriverproject.org To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org, olaf@aepfle.de, apw@canonical.com, ben@decadent.org.uk List-Id: virtualization@lists.linuxfoundation.org --- 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 2f8e0b9..8a18819 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -525,6 +525,9 @@ 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). @@ -573,6 +576,34 @@ 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