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2018-11-11Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1Dexuan Cui1-2/+13
The patch fixes: hv_kvp_daemon.c: In function 'kvp_set_ip_info': hv_kvp_daemon.c:1305:2: note: 'snprintf' output between 41 and 4136 bytes into a destination of size 4096 The "(unsigned int)str_len" is to avoid: hv_kvp_daemon.c:1309:30: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare] Signed-off-by: Dexuan Cui <decui@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12Tools: hv: Fix a bug in the key delete codeK. Y. Srinivasan1-1/+1
Fix a bug in the key delete code - the num_records range from 0 to num_records-1. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reported-by: David Binderman <dcb314@hotmail.com> Cc: <stable@vger.kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06tools/hv: Fix IP reporting by KVP daemon with SRIOVHaiyang Zhang1-73/+65
On Hyper-V the VF NIC has the same MAC as the related synthetic NIC. VF NIC can work under the synthetic NIC transparently, without its own IP address. The existing KVP daemon only gets IP from the first NIC matching a MAC address, and may not be able to find the IP in this case. This patch fixes the problem by searching the NIC matching the MAC, and having an IP address. So, the IP address will be found and reported to the host successfully. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28hv: kvp: Avoid reading past allocated blocks from KVP filePaul Meyer1-56/+14
While reading in more than one block (50) of KVP records, the allocation goes per block, but the reads used the total number of allocated records (without resetting the pointer/stream). This causes the records buffer to overrun when the refresh reads more than one block over the previous capacity (e.g. reading more than 100 KVP records whereas the in-memory database was empty before). Fix this by reading the correct number of KVP records from file each time. Signed-off-by: Paul Meyer <Paul.Meyer@microsoft.com> Signed-off-by: Long Li <longli@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-16Tools: hv: fix snprintf warning in kvp_daemonOlaf Hering1-1/+1
Increase buffer size so that "_{-INT_MAX}" will fit. Spotted by the gcc7 snprintf checker. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18tools: hv: properly handle long pathsVitaly Kuznetsov1-26/+18
Paths can be up to PATH_MAX long and PATH_MAX is usually greater than 256. While on it, simplify path reconstruction to a simple snprintf(), define and reuse KVP_NET_DIR. Suggested-by: Tomas Hozza <thozza@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-12-06Tools: hv: kvp: configurable external scripts pathAlex Fluter1-3/+8
error when running hypervkvpd: $ sudo ./hv_kvp_daemon -n sh: hv_get_dns_info: command not found sh: hv_get_dhcp_info: command not found sh: hv_get_dns_info: command not found sh: hv_get_dhcp_info: command not found The external scripts are not installed in system path, adding a configurable macro. Signed-off-by: Alex Fluter <afluter@yandex.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07tools: hv: remove unnecessary header files and netlink related codeWeibing Zhang1-7/+0
Remove unnecessary header files and netlink related code as the daemons do not use netlink to communicate with the kernel now. Signed-off-by: Weibing Zhang <atheism.zhang@gmail.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07tools: hv: fix a compile warning in snprintfWeibing Zhang1-1/+1
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.: hv_kvp_daemon.c:705:2: warning: format not a string literal and no format arguments [-Wformat-security] snprintf(dev_id, sizeof(dev_id), kvp_net_dir); ^ hv_kvp_daemon.c:705:2: warning: format not a string literal and no format arguments [-Wformat-security] Signed-off-by: Weibing Zhang <atheism.zhang@gmail.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-31Tools: hv: kvp: ensure kvp device fd is closed on execVitaly Kuznetsov1-1/+1
KVP daemon does fork()/exec() (with popen()) so we need to close our fds to avoid sharing them with child processes. The immediate implication of not doing so I see is SELinux complaining about 'ip' trying to access '/dev/vmbus/hv_kvp'. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24Tools: hv: kvp: use misc char device to communicate with kernelVitaly Kuznetsov1-135/+31
Use /dev/vmbus/hv_kvp instead of netlink. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-25Tools: hv: address compiler warnings for hv_kvp_daemon.cVitaly Kuznetsov1-13/+12
This patch addresses two types of compiler warnings: ... warning: comparison between signed and unsigned integer expressions [-Wsign-compare] and ... warning: pointer targets in passing argument N of .kvp_.... differ in signedness [-Wpointer-sign] Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-25Tools: hv: remove unused bytes_written from kvp_update_file()Vitaly Kuznetsov1-3/+1
fwrite() does not actually return the number of bytes written and this value is being ignored anyway and ferror() is being called to check for an error. As we assign to this variable and never use it we get the following compile-time warning: hv_kvp_daemon.c:149:9: warning: variable .bytes_written. set but not used [-Wunused-but-set-variable] Remove bytes_written completely. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-12tools: hv: kvp_daemon: make IPv6-only-injection workDexuan Cui1-6/+6
In the case the host only injects an IPv6 address, the dhcp_enabled flag is true (it's only for IPv4 according to Hyper-V host team), but we still need to proceed to parse the IPv6 information. Cc: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-By: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-27tools: hv: ignore ENOBUFS and ENOMEM in the KVP daemonDexuan Cui1-0/+14
Under high memory pressure and very high KVP R/W test pressure, the netlink recvfrom() may transiently return ENOBUFS to the daemon -- we found this during a 2-week stress test. We'd better not terminate the daemon on the failure, because a typical KVP user will re-try the R/W and hopefully it will succeed next time. We can also ignore the errors on sending. Cc: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-07tools: hv: introduce -n/--no-daemon optionVitaly Kuznetsov1-2/+32
All tools/hv daemons do mandatory daemon() on startup. However, no pidfile is created, this make it difficult for an init system to track such daemons. Modern linux distros use systemd as their init system. It can handle the daemonizing by itself, however, it requires a daemon to stay in foreground for that. Some distros already carry distro-specific patch for hv tools which switches off daemon(). Introduce -n/--no-daemon option for all 3 daemons in hv/tools. Parse options with getopt() to make this part easily expandable. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-09Tools: hv: remove inclusion of linux/types.hOlaf Hering1-1/+0
With very old libc headers the inclusion of sys/types.h causes conflicts with linux/types.h. Since the latter is not required anyway, remove it from the source files. If any of the headers really needs linux/types.h it has to include it itself. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-26Tools: hv: use single send+recv bufferOlaf Hering1-6/+4
send_buffer is used only once during registration. To reduce runtime memory usage reuse the recv_buffer for registration. Also use NLMSG_LENGTH instead of NLMSG_HDRLEN to take alignment into account. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-26Tools: hv: cache FQDN in kvp_daemon to avoid timeoutsOlaf Hering1-7/+12
kvp_daemon does some operations which take an unpredicable amount of time. In addition the kernel driver gives the kvp_daemon a 5 second timeout to respond to message from the host. If an operation such as getaddrinfo takes a long time and the timeout triggers then netlink errors occour. As a result of such errors the daemon just terminates and the service becomes unavailable. Idendifying and fixing these shortcomings in the kernel-userland communication protocol will be done in separate patches. This change fixes just one obvious timeout bug. Update kvp_get_domain_name to not return a value, better diagnostic for the consumer of the hostname string, remove trailing newline in error case, use snprintf to not overrun output buffer, get hostname only once and return the cached result. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-13Tools: hv: use full nlmsghdr in netlink_sendOlaf Hering1-10/+5
There is no need to have a nlmsghdr pointer to another temporary buffer. Instead use a full struct nlmsghdr. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-13Tools: hv: correct payload size in netlink_sendOlaf Hering1-1/+1
netlink_send is supposed to send just the cn_msg+hv_kvp_msg via netlink. Currently it sets an incorrect iovec size, as reported by valgrind. In the case of registering with the kernel the allocated buffer is large enough to hold nlmsghdr+cn_msg+hv_kvp_msg, no overrun happens. In the case of responding to the kernel the cn_msg is located in the middle of recv_buffer, after the nlmsghdr. Currently the code in netlink_send adds also the size of nlmsghdr to the payload. But nlmsghdr is a separate iovec. This leads to an (harmless) out-of-bounds access when the kernel processes the iovec. Correct the iovec size of the cn_msg to be just cn_msg + its payload. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-05Tools: hv: check return value of system in hv_kvp_daemonOlaf Hering1-1/+5
hv_kvp_daemon.c: In function 'main': hv_kvp_daemon.c:1441:8: warning: ignoring return value of 'daemon', declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-05Tools: hv: in kvp_set_ip_info free mac_addr right after usageOlaf Hering1-2/+1
... to simplify error path in upcoming changes. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02Tools: hv: check return value of daemon to fix compiler warning.Olaf Hering1-1/+2
hv_kvp_daemon.c: In function 'main': hv_kvp_daemon.c:1441:8: warning: ignoring return value of 'daemon', declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-02Tools: hv: fix send/recv buffer allocationOlaf Hering1-3/+12
hv_kvp_daemon fails to start in current openSuSE 13.1 snapshots because the kvp_send_buffer is too small to hold cn_msg+hv_kvp_msg, the very first sendmsg returns with EFAULT. In addition it fixes the Network info tab in Windows Server 2012R2 in SLES11. Adjust the code in kvp and vss daemon to allocate the needed buffers at runtime. To keep the code simple, the buffer_len includes also the nlmsghdr, although only the recv_buffer needs this extra space. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-17Tools: hv: KVP: Fix a bug in IPV6 subnet enumerationK. Y. Srinivasan1-2/+3
Each subnet string needs to be separated with a semicolon. Fix this bug. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-18tools: hv: Improve error logging in KVP daemon.Tomas Hozza1-11/+18
Use errno and strerror() when logging errors to provide more information. Signed-off-by: Tomas Hozza <thozza@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04tools: hv: Fix file descriptor leaksTomas Hozza1-1/+5
Close "fd" file descriptor when is goes out of scope so it does not leak. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04tools: hv: Check retrun value of strchr callTomas Hozza1-1/+3
Check return value of strchr call and dereference it only if it is not NULL. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04tools: hv: Check return value of poll callTomas Hozza1-1/+10
Check return value of poll call and if it fails print error to the system log. If errno is EINVAL then exit with non-zero value otherwise continue the while loop and call poll again. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04tools: hv: Check return value of setsockopt callTomas Hozza1-1/+7
Check return value of setsockopt call and if it fails print error to the system log and exit with non-zero value. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-15tools: hv: daemon should check type of received Netlink msgTomas Hozza1-0/+4
HyperV KVP daemon should check nlmsg_type in received netlink message header. If message type is NLMSG_DONE daemon can proceed with processing otherwise it should wait for next message. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-15tools: hv: daemon setsockopt should use options macrosTomas Hozza1-3/+7
HyperV daemon should use macros for option values when calling setsockopt. Using specific numeric values instead of macros is confusing. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-15tools: hv: daemon should subscribe only to CN_KVP_IDX groupTomas Hozza1-2/+2
Previously HyperV daemon set sockaddr_nl.nl_groups to CN_KVP_IDX. Netlink documentation says: "nl_groups is a bit mask with every bit representing a netlink group number". Since CN_KVP_IDX value is "9" HyperV daemon was receiving Netlink messages also from group number "1" which is used by CGroup Rules Engine Daemon. This caused the daemon to segfault (at least on 2.6.32 kernel). HyperV daemon should set nl_groups to zero and specify multicast group CN_KVP_IDX only by using socket options. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-19tools: hv: Use CLOEXEC when opening kvp_pool filesTomas Hozza1-4/+4
Use CLOEXEC flag when opening kvp_pool_x files to prevent file descriptor leakage. Not using it was causing a problem when SELinux was enabled. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17tools: hv: Fix how ifcfg-* file is createdTomas Hozza1-30/+29
Fix for the daemon code and for hv_set_ifconfig.sh script, so that the created ifcfg-* file is consistent with initscripts documentation. Signed-off-by: Tomas Hozza <thozza@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17tools/hv: Fix permissions of created directory and filesBen Hutchings1-2/+2
It's silly to create directories without execute permission, or to give permissions to 'other' but not the group-owner. Write the permissions in octal and 'ls -l' format since these are much easier to read than the named macros. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17tools/hv: Fix /var subdirectoryTomas Hozza1-6/+6
Initial patch by Ben Hutchings <ben@decadent.org.uk> We will install this in /usr, so it must use /var/lib for its state. Only programs installed under /opt should use /var/opt. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-16tools/hv: Fix string typesTomas Hozza1-5/+5
Initial patch by Ben Hutchings <ben@decadent.org.uk> Standard C strings are arrays of char, not __u8 (unsigned char). Declare variables and parameters accordingly, and add the necessary casts. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-16tools: hv: Netlink source address validation allows DoSTomas Hozza1-1/+7
The source code without this patch caused hypervkvpd to exit when it processed a spoofed Netlink packet which has been sent from an untrusted local user. Now Netlink messages with a non-zero nl_pid source address are ignored and a warning is printed into the syslog. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-30Tools: hv: Don't return loopback addressesK. Y. Srinivasan1-4/+9
Don't return loopback addresses and further don't terminate the IP address strings with a semicolon. This is the current behavior of Windows guests. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reported-by: Claudio Latini <claudio.latini@live.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-30tools: hv: Return the full kernel versionK. Y. Srinivasan1-3/+6
Currently, we are returning the same string for both OSBuildNumber and OSVersion keys. Return the full uts string for the OSBuild key since Windows does not impose any restrictions on this. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reported-by: Claudio Latini <claudio.latini@live.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11tools/hv: Parse /etc/os-releaseBen Hutchings1-4/+55
There is a new convention, used by systemd and supported by most distributions, to put basic OS release information in /etc/os-release. Added some additional error checking on strdup() Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11tools/hv: Check for read/write errorsBen Hutchings1-3/+19
hv_kvp_daemon currently does not check whether fread() or fwrite() succeed. Add the necessary checks. Also, remove the incorrect use of feof() before fread(). Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11tools/hv: Fix exit() error codeBen Hutchings1-11/+11
Linux native exit codes are 8-bit unsigned values. exit(-1) results in an exit code of 255, which is usually reserved for shells reporting 'command not found'. Use the portable value EXIT_FAILURE. (Not that this matters much for a daemon.) Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11tools/hv: Fix file handle leakBen Hutchings1-1/+2
Match up each fopen() with an fclose(). Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11Tools: hv: Implement the KVP verb - KVP_OP_GET_IP_INFOK. Y. Srinivasan1-3/+90
Now implement the KVP verb - KVP_OP_GET_IP_INFO. This operation retrieves IP information for the specified interface. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11Tools: hv: Rename the function kvp_get_ip_address()K. Y. Srinivasan1-3/+3
Rename the function kvp_get_ip_address() to better reflect the functionality being implemented. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11Tools: hv: Implement the KVP verb - KVP_OP_SET_IP_INFOK. Y. Srinivasan1-0/+443
Implement the KVP verb - KVP_OP_SET_IP_INFO. This operation configures the specified interface based on the given configuration. Since configuring an interface is very distro specific, we invoke an external (Distro specific) script to configure the interface. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-11Tools: hv: Gather DHCP informationK. Y. Srinivasan1-0/+31
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 <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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