svn commit: r272128 - in stable/10: . contrib/hyperv etc/devd etc/mtree libexec libexec/hyperv share/mk sys/conf sys/dev/hyperv/include sys/dev/hyperv/utilities sys/modules/hyperv/utilities tools/b...
Xin LI
delphij at FreeBSD.org
Thu Sep 25 20:34:17 UTC 2014
Author: delphij
Date: Thu Sep 25 20:34:13 2014
New Revision: 272128
URL: http://svnweb.freebsd.org/changeset/base/272128
Log:
MFC r271493,271688,271689,271696,271854:
Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft,
many thanks for their continued support of FreeBSD.
While I'm there, also implement a new build knob, WITHOUT_HYPERV to
disable building and installing of the HyperV utilities when necessary.
The HyperV utilities are only built for i386 and amd64 targets.
Approved by: re (gjb)
Added:
stable/10/contrib/hyperv/
- copied from r271493, head/contrib/hyperv/
stable/10/etc/devd/hyperv.conf
- copied, changed from r271696, head/etc/devd/hyperv.conf
stable/10/libexec/hyperv/
- copied from r271493, head/libexec/hyperv/
stable/10/sys/dev/hyperv/utilities/hv_kvp.c
- copied unchanged from r271493, head/sys/dev/hyperv/utilities/hv_kvp.c
stable/10/sys/dev/hyperv/utilities/unicode.h
- copied unchanged from r271493, head/sys/dev/hyperv/utilities/unicode.h
stable/10/tools/build/options/WITHOUT_HYPERV
- copied unchanged from r271493, head/tools/build/options/WITHOUT_HYPERV
stable/10/tools/build/options/WITH_HYPERV
- copied unchanged from r271493, head/tools/build/options/WITH_HYPERV
stable/10/usr.sbin/hyperv/
- copied from r271493, head/usr.sbin/hyperv/
Modified:
stable/10/ObsoleteFiles.inc
stable/10/etc/devd/Makefile
stable/10/etc/mtree/BSD.usr.dist
stable/10/etc/mtree/BSD.var.dist
stable/10/libexec/Makefile
stable/10/share/mk/bsd.own.mk
stable/10/sys/conf/files.amd64
stable/10/sys/conf/files.i386
stable/10/sys/dev/hyperv/include/hyperv.h
stable/10/sys/dev/hyperv/utilities/hv_kvp.h
stable/10/sys/dev/hyperv/utilities/hv_util.c
stable/10/sys/modules/hyperv/utilities/Makefile
stable/10/tools/build/mk/OptionalObsoleteFiles.inc
stable/10/usr.sbin/Makefile.amd64
stable/10/usr.sbin/Makefile.i386
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/ObsoleteFiles.inc
==============================================================================
--- stable/10/ObsoleteFiles.inc Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/ObsoleteFiles.inc Thu Sep 25 20:34:13 2014 (r272128)
@@ -38,6 +38,8 @@
# xargs -n1 | sort | uniq -d;
# done
+# 20140925: hv_kvpd rc.d script removed in favor of devd configuration
+OLD_FILES+=etc/rc.d/hv_kvpd
# 20140814: libopie version bump
OLD_LIBS+=usr/lib/libopie.so.7
OLD_LIBS+=usr/lib32/libopie.so.7
Modified: stable/10/etc/devd/Makefile
==============================================================================
--- stable/10/etc/devd/Makefile Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/etc/devd/Makefile Thu Sep 25 20:34:13 2014 (r272128)
@@ -10,6 +10,10 @@ FILES+= apple.conf
FILES+= asus.conf
.endif
+.if ${MK_HYPERV} != "no"
+FILES+= hyperv.conf
+.endif
+
NO_OBJ=
FILESDIR= /etc/devd
FILESMODE= 644
Copied and modified: stable/10/etc/devd/hyperv.conf (from r271696, head/etc/devd/hyperv.conf)
==============================================================================
--- head/etc/devd/hyperv.conf Wed Sep 17 02:32:22 2014 (r271696, copy source)
+++ stable/10/etc/devd/hyperv.conf Thu Sep 25 20:34:13 2014 (r272128)
@@ -6,7 +6,7 @@ notify 10 {
match "system" "DEVFS";
match "subsystem" "CDEV";
match "type" "CREATE";
- match "cdev" "/dev/hv_kvp_dev";
+ match "cdev" "hv_kvp_dev";
action "/usr/sbin/hv_kvp_daemon";
};
@@ -14,6 +14,6 @@ notify 10 {
match "system" "DEVFS";
match "subsystem" "CDEV";
match "type" "DESTROY";
- match "cdev" "/dev/hv_kvp_dev";
+ match "cdev" "hv_kvp_dev";
action "pkill -x hv_kvp_daemon";
};
Modified: stable/10/etc/mtree/BSD.usr.dist
==============================================================================
--- stable/10/etc/mtree/BSD.usr.dist Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/etc/mtree/BSD.usr.dist Thu Sep 25 20:34:13 2014 (r272128)
@@ -108,6 +108,8 @@
..
bsdinstall
..
+ hyperv
+ ..
lpr
ru
..
Modified: stable/10/etc/mtree/BSD.var.dist
==============================================================================
--- stable/10/etc/mtree/BSD.var.dist Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/etc/mtree/BSD.var.dist Thu Sep 25 20:34:13 2014 (r272128)
@@ -42,6 +42,8 @@
..
freebsd-update mode=0700
..
+ hyperv mode=0700
+ ..
ipf mode=0700
..
pkg
Modified: stable/10/libexec/Makefile
==============================================================================
--- stable/10/libexec/Makefile Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/libexec/Makefile Thu Sep 25 20:34:13 2014 (r272128)
@@ -10,6 +10,7 @@ SUBDIR= ${_atf} \
fingerd \
ftpd \
getty \
+ ${_hyperv} \
${_mail.local} \
${_mknetid} \
${_pppoed} \
@@ -42,6 +43,10 @@ _atrun= atrun
_comsat= comsat
.endif
+.if ${MK_HYPERV} != "no"
+_hyperv= hyperv
+.endif
+
.if ${MK_NIS} != "no"
_mknetid= mknetid
_ypxfr= ypxfr
Modified: stable/10/share/mk/bsd.own.mk
==============================================================================
--- stable/10/share/mk/bsd.own.mk Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/share/mk/bsd.own.mk Thu Sep 25 20:34:13 2014 (r272128)
@@ -438,6 +438,12 @@ __DEFAULT_YES_OPTIONS+=FDT
.else
__DEFAULT_NO_OPTIONS+=FDT
.endif
+# HyperV is only available for x86 and amd64.
+.if ${__T} == "amd64" || ${__T} == "i386"
+__DEFAULT_YES_OPTIONS+=HYPERV
+.else
+__DEFAULT_NO_OPTIONS+=HYPERV
+.endif
.undef __T
#
Modified: stable/10/sys/conf/files.amd64
==============================================================================
--- stable/10/sys/conf/files.amd64 Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/sys/conf/files.amd64 Thu Sep 25 20:34:13 2014 (r272128)
@@ -234,6 +234,7 @@ dev/hyperv/netvsc/hv_netvsc_drv_freebsd.
dev/hyperv/netvsc/hv_rndis_filter.c optional hyperv
dev/hyperv/stordisengage/hv_ata_pci_disengage.c optional hyperv
dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c optional hyperv
+dev/hyperv/utilities/hv_kvp.c optional hyperv
dev/hyperv/utilities/hv_util.c optional hyperv
dev/hyperv/vmbus/hv_channel.c optional hyperv
dev/hyperv/vmbus/hv_channel_mgmt.c optional hyperv
Modified: stable/10/sys/conf/files.i386
==============================================================================
--- stable/10/sys/conf/files.i386 Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/sys/conf/files.i386 Thu Sep 25 20:34:13 2014 (r272128)
@@ -227,6 +227,7 @@ dev/hyperv/netvsc/hv_netvsc_drv_freebsd.
dev/hyperv/netvsc/hv_rndis_filter.c optional hyperv
dev/hyperv/stordisengage/hv_ata_pci_disengage.c optional hyperv
dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c optional hyperv
+dev/hyperv/utilities/hv_kvp.c optional hyperv
dev/hyperv/utilities/hv_util.c optional hyperv
dev/hyperv/vmbus/hv_channel.c optional hyperv
dev/hyperv/vmbus/hv_channel_mgmt.c optional hyperv
Modified: stable/10/sys/dev/hyperv/include/hyperv.h
==============================================================================
--- stable/10/sys/dev/hyperv/include/hyperv.h Thu Sep 25 19:22:26 2014 (r272127)
+++ stable/10/sys/dev/hyperv/include/hyperv.h Thu Sep 25 20:34:13 2014 (r272128)
@@ -795,5 +795,34 @@ hv_get_phys_addr(void *virt)
return (ret);
}
+
+/**
+ * KVP related structures
+ *
+ */
+typedef struct hv_vmbus_service {
+ hv_guid guid; /* Hyper-V GUID */
+ char *name; /* name of service */
+ boolean_t enabled; /* service enabled */
+ hv_work_queue *work_queue; /* background work queue */
+
+ /*
+ * function to initialize service
+ */
+ int (*init)(struct hv_vmbus_service *);
+
+ /*
+ * function to process Hyper-V messages
+ */
+ void (*callback)(void *);
+} hv_vmbus_service;
+
+extern uint8_t* receive_buffer[];
+extern hv_vmbus_service service_table[];
+
+void hv_kvp_callback(void *context);
+int hv_kvp_init(hv_vmbus_service *serv);
+void hv_kvp_deinit(void);
+
#endif /* __HYPERV_H__ */
Copied: stable/10/sys/dev/hyperv/utilities/hv_kvp.c (from r271493, head/sys/dev/hyperv/utilities/hv_kvp.c)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/10/sys/dev/hyperv/utilities/hv_kvp.c Thu Sep 25 20:34:13 2014 (r272128, copy of r271493, head/sys/dev/hyperv/utilities/hv_kvp.c)
@@ -0,0 +1,1001 @@
+/*-
+ * Copyright (c) 2014 Microsoft Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Author: Sainath Varanasi.
+ * Date: 4/2012
+ * Email: bsdic at microsoft.com
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/bus.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/module.h>
+#include <sys/reboot.h>
+#include <sys/lock.h>
+#include <sys/taskqueue.h>
+#include <sys/sysctl.h>
+#include <sys/poll.h>
+#include <sys/proc.h>
+#include <sys/kthread.h>
+#include <sys/syscallsubr.h>
+#include <sys/sysproto.h>
+#include <sys/un.h>
+#include <sys/endian.h>
+#include <sys/_null.h>
+#include <sys/signal.h>
+#include <sys/syslog.h>
+#include <sys/mutex.h>
+#include <net/if_arp.h>
+
+#include <dev/hyperv/include/hyperv.h>
+#include <dev/hyperv/netvsc/hv_net_vsc.h>
+
+#include "unicode.h"
+#include "hv_kvp.h"
+
+/* hv_kvp defines */
+#define BUFFERSIZE sizeof(struct hv_kvp_msg)
+#define KVP_SUCCESS 0
+#define KVP_ERROR 1
+#define kvp_hdr hdr.kvp_hdr
+
+/* hv_kvp debug control */
+static int hv_kvp_log = 0;
+SYSCTL_INT(_dev, OID_AUTO, hv_kvp_log, CTLFLAG_RW, &hv_kvp_log, 0,
+ "hv_kvp log");
+
+#define hv_kvp_log_error(...) do { \
+ if (hv_kvp_log > 0) \
+ log(LOG_ERR, "hv_kvp: " __VA_ARGS__); \
+} while (0)
+
+#define hv_kvp_log_info(...) do { \
+ if (hv_kvp_log > 1) \
+ log(LOG_INFO, "hv_kvp: " __VA_ARGS__); \
+} while (0)
+
+/* character device prototypes */
+static d_open_t hv_kvp_dev_open;
+static d_close_t hv_kvp_dev_close;
+static d_read_t hv_kvp_dev_daemon_read;
+static d_write_t hv_kvp_dev_daemon_write;
+static d_poll_t hv_kvp_dev_daemon_poll;
+
+/* hv_kvp prototypes */
+static int hv_kvp_req_in_progress(void);
+static void hv_kvp_transaction_init(uint32_t, hv_vmbus_channel *, uint64_t, uint8_t *);
+static void hv_kvp_send_msg_to_daemon(void);
+static void hv_kvp_process_request(void *context);
+
+/* hv_kvp character device structure */
+static struct cdevsw hv_kvp_cdevsw =
+{
+ .d_version = D_VERSION,
+ .d_open = hv_kvp_dev_open,
+ .d_close = hv_kvp_dev_close,
+ .d_read = hv_kvp_dev_daemon_read,
+ .d_write = hv_kvp_dev_daemon_write,
+ .d_poll = hv_kvp_dev_daemon_poll,
+ .d_name = "hv_kvp_dev",
+};
+static struct cdev *hv_kvp_dev;
+static struct hv_kvp_msg *hv_kvp_dev_buf;
+struct proc *daemon_task;
+
+/*
+ * Global state to track and synchronize multiple
+ * KVP transaction requests from the host.
+ */
+static struct {
+
+ /* Pre-allocated work item for queue */
+ hv_work_item work_item;
+
+ /* Unless specified the pending mutex should be
+ * used to alter the values of the following paramters:
+ * 1. req_in_progress
+ * 2. req_timed_out
+ * 3. pending_reqs.
+ */
+ struct mtx pending_mutex;
+
+ /* To track if transaction is active or not */
+ boolean_t req_in_progress;
+ /* Tracks if daemon did not reply back in time */
+ boolean_t req_timed_out;
+ /* Tracks if daemon is serving a request currently */
+ boolean_t daemon_busy;
+ /* Count of KVP requests from Hyper-V. */
+ uint64_t pending_reqs;
+
+
+ /* Length of host message */
+ uint32_t host_msg_len;
+
+ /* Pointer to channel */
+ hv_vmbus_channel *channelp;
+
+ /* Host message id */
+ uint64_t host_msg_id;
+
+ /* Current kvp message from the host */
+ struct hv_kvp_msg *host_kvp_msg;
+
+ /* Current kvp message for daemon */
+ struct hv_kvp_msg daemon_kvp_msg;
+
+ /* Rcv buffer for communicating with the host*/
+ uint8_t *rcv_buf;
+
+ /* Device semaphore to control communication */
+ struct sema dev_sema;
+
+ /* Indicates if daemon registered with driver */
+ boolean_t register_done;
+
+ /* Character device status */
+ boolean_t dev_accessed;
+} kvp_globals;
+
+/* global vars */
+MALLOC_DECLARE(M_HV_KVP_DEV_BUF);
+MALLOC_DEFINE(M_HV_KVP_DEV_BUF, "hv_kvp_dev buffer", "buffer for hv_kvp_dev module");
+
+/*
+ * hv_kvp low level functions
+ */
+
+/*
+ * Check if kvp transaction is in progres
+ */
+static int
+hv_kvp_req_in_progress(void)
+{
+
+ return (kvp_globals.req_in_progress);
+}
+
+
+/*
+ * This routine is called whenever a message is received from the host
+ */
+static void
+hv_kvp_transaction_init(uint32_t rcv_len, hv_vmbus_channel *rcv_channel,
+ uint64_t request_id, uint8_t *rcv_buf)
+{
+
+ /* Store all the relevant message details in the global structure */
+ /* Do not need to use mutex for req_in_progress here */
+ kvp_globals.req_in_progress = true;
+ kvp_globals.host_msg_len = rcv_len;
+ kvp_globals.channelp = rcv_channel;
+ kvp_globals.host_msg_id = request_id;
+ kvp_globals.rcv_buf = rcv_buf;
+ kvp_globals.host_kvp_msg = (struct hv_kvp_msg *)&rcv_buf[
+ sizeof(struct hv_vmbus_pipe_hdr) +
+ sizeof(struct hv_vmbus_icmsg_hdr)];
+}
+
+
+/*
+ * hv_kvp - version neogtiation function
+ */
+static void
+hv_kvp_negotiate_version(struct hv_vmbus_icmsg_hdr *icmsghdrp,
+ struct hv_vmbus_icmsg_negotiate *negop,
+ uint8_t *buf)
+{
+ int icframe_vercnt;
+ int icmsg_vercnt;
+
+ icmsghdrp->icmsgsize = 0x10;
+
+ negop = (struct hv_vmbus_icmsg_negotiate *)&buf[
+ sizeof(struct hv_vmbus_pipe_hdr) +
+ sizeof(struct hv_vmbus_icmsg_hdr)];
+ icframe_vercnt = negop->icframe_vercnt;
+ icmsg_vercnt = negop->icmsg_vercnt;
+
+ /*
+ * Select the framework version number we will support
+ */
+ if ((icframe_vercnt >= 2) && (negop->icversion_data[1].major == 3)) {
+ icframe_vercnt = 3;
+ if (icmsg_vercnt >= 2)
+ icmsg_vercnt = 4;
+ else
+ icmsg_vercnt = 3;
+ } else {
+ icframe_vercnt = 1;
+ icmsg_vercnt = 1;
+ }
+
+ negop->icframe_vercnt = 1;
+ negop->icmsg_vercnt = 1;
+ negop->icversion_data[0].major = icframe_vercnt;
+ negop->icversion_data[0].minor = 0;
+ negop->icversion_data[1].major = icmsg_vercnt;
+ negop->icversion_data[1].minor = 0;
+}
+
+
+/*
+ * Convert ip related info in umsg from utf8 to utf16 and store in hmsg
+ */
+static int
+hv_kvp_convert_utf8_ipinfo_to_utf16(struct hv_kvp_msg *umsg,
+ struct hv_kvp_ip_msg *host_ip_msg)
+{
+ int err_ip, err_subnet, err_gway, err_dns, err_adap;
+ int UNUSED_FLAG = 1;
+
+ utf8_to_utf16((uint16_t *)host_ip_msg->kvp_ip_val.ip_addr,
+ MAX_IP_ADDR_SIZE,
+ (char *)umsg->body.kvp_ip_val.ip_addr,
+ strlen((char *)umsg->body.kvp_ip_val.ip_addr),
+ UNUSED_FLAG,
+ &err_ip);
+ utf8_to_utf16((uint16_t *)host_ip_msg->kvp_ip_val.sub_net,
+ MAX_IP_ADDR_SIZE,
+ (char *)umsg->body.kvp_ip_val.sub_net,
+ strlen((char *)umsg->body.kvp_ip_val.sub_net),
+ UNUSED_FLAG,
+ &err_subnet);
+ utf8_to_utf16((uint16_t *)host_ip_msg->kvp_ip_val.gate_way,
+ MAX_GATEWAY_SIZE,
+ (char *)umsg->body.kvp_ip_val.gate_way,
+ strlen((char *)umsg->body.kvp_ip_val.gate_way),
+ UNUSED_FLAG,
+ &err_gway);
+ utf8_to_utf16((uint16_t *)host_ip_msg->kvp_ip_val.dns_addr,
+ MAX_IP_ADDR_SIZE,
+ (char *)umsg->body.kvp_ip_val.dns_addr,
+ strlen((char *)umsg->body.kvp_ip_val.dns_addr),
+ UNUSED_FLAG,
+ &err_dns);
+ utf8_to_utf16((uint16_t *)host_ip_msg->kvp_ip_val.adapter_id,
+ MAX_IP_ADDR_SIZE,
+ (char *)umsg->body.kvp_ip_val.adapter_id,
+ strlen((char *)umsg->body.kvp_ip_val.adapter_id),
+ UNUSED_FLAG,
+ &err_adap);
+
+ host_ip_msg->kvp_ip_val.dhcp_enabled = umsg->body.kvp_ip_val.dhcp_enabled;
+ host_ip_msg->kvp_ip_val.addr_family = umsg->body.kvp_ip_val.addr_family;
+
+ return (err_ip | err_subnet | err_gway | err_dns | err_adap);
+}
+
+
+/*
+ * Convert ip related info in hmsg from utf16 to utf8 and store in umsg
+ */
+static int
+hv_kvp_convert_utf16_ipinfo_to_utf8(struct hv_kvp_ip_msg *host_ip_msg,
+ struct hv_kvp_msg *umsg)
+{
+ int err_ip, err_subnet, err_gway, err_dns, err_adap;
+ int UNUSED_FLAG = 1;
+ int guid_index;
+ struct hv_device *hv_dev; /* GUID Data Structure */
+ hn_softc_t *sc; /* hn softc structure */
+ char if_name[4];
+ unsigned char guid_instance[40];
+ char *guid_data = NULL;
+ char buf[39];
+
+ struct guid_extract {
+ char a1[2];
+ char a2[2];
+ char a3[2];
+ char a4[2];
+ char b1[2];
+ char b2[2];
+ char c1[2];
+ char c2[2];
+ char d[4];
+ char e[12];
+ };
+
+ struct guid_extract *id;
+ device_t *devs;
+ int devcnt;
+
+ /* IP Address */
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.ip_addr,
+ MAX_IP_ADDR_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.ip_addr,
+ MAX_IP_ADDR_SIZE,
+ UNUSED_FLAG,
+ &err_ip);
+
+ /* Adapter ID : GUID */
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.adapter_id,
+ MAX_ADAPTER_ID_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.adapter_id,
+ MAX_ADAPTER_ID_SIZE,
+ UNUSED_FLAG,
+ &err_adap);
+
+ if (devclass_get_devices(devclass_find("hn"), &devs, &devcnt) == 0) {
+ for (devcnt = devcnt - 1; devcnt >= 0; devcnt--) {
+ sc = device_get_softc(devs[devcnt]);
+
+ /* Trying to find GUID of Network Device */
+ hv_dev = sc->hn_dev_obj;
+
+ for (guid_index = 0; guid_index < 16; guid_index++) {
+ sprintf(&guid_instance[guid_index * 2], "%02x",
+ hv_dev->device_id.data[guid_index]);
+ }
+
+ guid_data = (char *)guid_instance;
+ id = (struct guid_extract *)guid_data;
+ snprintf(buf, sizeof(buf), "{%.2s%.2s%.2s%.2s-%.2s%.2s-%.2s%.2s-%.4s-%s}",
+ id->a4, id->a3, id->a2, id->a1,
+ id->b2, id->b1, id->c2, id->c1, id->d, id->e);
+ guid_data = NULL;
+ sprintf(if_name, "%s%d", "hn", device_get_unit(devs[devcnt]));
+
+ if (strncmp(buf, (char *)umsg->body.kvp_ip_val.adapter_id, 39) == 0) {
+ strcpy((char *)umsg->body.kvp_ip_val.adapter_id, if_name);
+ break;
+ }
+ }
+ free(devs, M_TEMP);
+ }
+
+ /* Address Family , DHCP , SUBNET, Gateway, DNS */
+ umsg->kvp_hdr.operation = host_ip_msg->operation;
+ umsg->body.kvp_ip_val.addr_family = host_ip_msg->kvp_ip_val.addr_family;
+ umsg->body.kvp_ip_val.dhcp_enabled = host_ip_msg->kvp_ip_val.dhcp_enabled;
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.sub_net, MAX_IP_ADDR_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.sub_net,
+ MAX_IP_ADDR_SIZE,
+ UNUSED_FLAG,
+ &err_subnet);
+
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.gate_way, MAX_GATEWAY_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.gate_way,
+ MAX_GATEWAY_SIZE,
+ UNUSED_FLAG,
+ &err_gway);
+
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.dns_addr, MAX_IP_ADDR_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.dns_addr,
+ MAX_IP_ADDR_SIZE,
+ UNUSED_FLAG,
+ &err_dns);
+
+ return (err_ip | err_subnet | err_gway | err_dns | err_adap);
+}
+
+
+/*
+ * Prepare a user kvp msg based on host kvp msg (utf16 to utf8)
+ * Ensure utf16_utf8 takes care of the additional string terminating char!!
+ */
+static void
+hv_kvp_convert_hostmsg_to_usermsg(void)
+{
+ int utf_err = 0;
+ uint32_t value_type;
+ struct hv_kvp_ip_msg *host_ip_msg = (struct hv_kvp_ip_msg *)
+ kvp_globals.host_kvp_msg;
+
+ struct hv_kvp_msg *hmsg = kvp_globals.host_kvp_msg;
+ struct hv_kvp_msg *umsg = &kvp_globals.daemon_kvp_msg;
+
+ memset(umsg, 0, sizeof(struct hv_kvp_msg));
+
+ umsg->kvp_hdr.operation = hmsg->kvp_hdr.operation;
+ umsg->kvp_hdr.pool = hmsg->kvp_hdr.pool;
+
+ switch (umsg->kvp_hdr.operation) {
+ case HV_KVP_OP_SET_IP_INFO:
+ hv_kvp_convert_utf16_ipinfo_to_utf8(host_ip_msg, umsg);
+ break;
+
+ case HV_KVP_OP_GET_IP_INFO:
+ utf16_to_utf8((char *)umsg->body.kvp_ip_val.adapter_id,
+ MAX_ADAPTER_ID_SIZE,
+ (uint16_t *)host_ip_msg->kvp_ip_val.adapter_id,
+ MAX_ADAPTER_ID_SIZE, 1, &utf_err);
+
+ umsg->body.kvp_ip_val.addr_family =
+ host_ip_msg->kvp_ip_val.addr_family;
+ break;
+
+ case HV_KVP_OP_SET:
+ value_type = hmsg->body.kvp_set.data.value_type;
+
+ switch (value_type) {
+ case HV_REG_SZ:
+ umsg->body.kvp_set.data.value_size =
+ utf16_to_utf8(
+ (char *)umsg->body.kvp_set.data.msg_value.value,
+ HV_KVP_EXCHANGE_MAX_VALUE_SIZE - 1,
+ (uint16_t *)hmsg->body.kvp_set.data.msg_value.value,
+ hmsg->body.kvp_set.data.value_size,
+ 1, &utf_err);
+ /* utf8 encoding */
+ umsg->body.kvp_set.data.value_size =
+ umsg->body.kvp_set.data.value_size / 2;
+ break;
+
+ case HV_REG_U32:
+ umsg->body.kvp_set.data.value_size =
+ sprintf(umsg->body.kvp_set.data.msg_value.value, "%d",
+ hmsg->body.kvp_set.data.msg_value.value_u32) + 1;
+ break;
+
+ case HV_REG_U64:
+ umsg->body.kvp_set.data.value_size =
+ sprintf(umsg->body.kvp_set.data.msg_value.value, "%llu",
+ (unsigned long long)
+ hmsg->body.kvp_set.data.msg_value.value_u64) + 1;
+ break;
+ }
+
+ umsg->body.kvp_set.data.key_size =
+ utf16_to_utf8(
+ umsg->body.kvp_set.data.key,
+ HV_KVP_EXCHANGE_MAX_KEY_SIZE - 1,
+ (uint16_t *)hmsg->body.kvp_set.data.key,
+ hmsg->body.kvp_set.data.key_size,
+ 1, &utf_err);
+
+ /* utf8 encoding */
+ umsg->body.kvp_set.data.key_size =
+ umsg->body.kvp_set.data.key_size / 2;
+ break;
+
+ case HV_KVP_OP_GET:
+ umsg->body.kvp_get.data.key_size =
+ utf16_to_utf8(umsg->body.kvp_get.data.key,
+ HV_KVP_EXCHANGE_MAX_KEY_SIZE - 1,
+ (uint16_t *)hmsg->body.kvp_get.data.key,
+ hmsg->body.kvp_get.data.key_size,
+ 1, &utf_err);
+ /* utf8 encoding */
+ umsg->body.kvp_get.data.key_size =
+ umsg->body.kvp_get.data.key_size / 2;
+ break;
+
+ case HV_KVP_OP_DELETE:
+ umsg->body.kvp_delete.key_size =
+ utf16_to_utf8(umsg->body.kvp_delete.key,
+ HV_KVP_EXCHANGE_MAX_KEY_SIZE - 1,
+ (uint16_t *)hmsg->body.kvp_delete.key,
+ hmsg->body.kvp_delete.key_size,
+ 1, &utf_err);
+ /* utf8 encoding */
+ umsg->body.kvp_delete.key_size =
+ umsg->body.kvp_delete.key_size / 2;
+ break;
+
+ case HV_KVP_OP_ENUMERATE:
+ umsg->body.kvp_enum_data.index =
+ hmsg->body.kvp_enum_data.index;
+ break;
+
+ default:
+ hv_kvp_log_info("%s: daemon_kvp_msg: Invalid operation : %d\n",
+ __func__, umsg->kvp_hdr.operation);
+ }
+}
+
+
+/*
+ * Prepare a host kvp msg based on user kvp msg (utf8 to utf16)
+ */
+static int
+hv_kvp_convert_usermsg_to_hostmsg(void)
+{
+ int hkey_len = 0, hvalue_len = 0, utf_err = 0;
+ struct hv_kvp_exchg_msg_value *host_exchg_data;
+ char *key_name, *value;
+
+ struct hv_kvp_msg *umsg = &kvp_globals.daemon_kvp_msg;
+ struct hv_kvp_msg *hmsg = kvp_globals.host_kvp_msg;
+ struct hv_kvp_ip_msg *host_ip_msg = (struct hv_kvp_ip_msg *)hmsg;
+
+ switch (hmsg->kvp_hdr.operation) {
+ case HV_KVP_OP_GET_IP_INFO:
+ return (hv_kvp_convert_utf8_ipinfo_to_utf16(umsg, host_ip_msg));
+
+ case HV_KVP_OP_SET_IP_INFO:
+ case HV_KVP_OP_SET:
+ case HV_KVP_OP_DELETE:
+ return (KVP_SUCCESS);
+
+ case HV_KVP_OP_ENUMERATE:
+ host_exchg_data = &hmsg->body.kvp_enum_data.data;
+ key_name = umsg->body.kvp_enum_data.data.key;
+ hkey_len = utf8_to_utf16((uint16_t *)host_exchg_data->key,
+ ((HV_KVP_EXCHANGE_MAX_KEY_SIZE / 2) - 2),
+ key_name, strlen(key_name),
+ 1, &utf_err);
+ /* utf16 encoding */
+ host_exchg_data->key_size = 2 * (hkey_len + 1);
+ value = umsg->body.kvp_enum_data.data.msg_value.value;
+ hvalue_len = utf8_to_utf16(
+ (uint16_t *)host_exchg_data->msg_value.value,
+ ((HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2) - 2),
+ value, strlen(value),
+ 1, &utf_err);
+ host_exchg_data->value_size = 2 * (hvalue_len + 1);
+ host_exchg_data->value_type = HV_REG_SZ;
+
+ if ((hkey_len < 0) || (hvalue_len < 0))
+ return (HV_KVP_E_FAIL);
+
+ return (KVP_SUCCESS);
+
+ case HV_KVP_OP_GET:
+ host_exchg_data = &hmsg->body.kvp_get.data;
+ value = umsg->body.kvp_get.data.msg_value.value;
+ hvalue_len = utf8_to_utf16(
+ (uint16_t *)host_exchg_data->msg_value.value,
+ ((HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2) - 2),
+ value, strlen(value),
+ 1, &utf_err);
+ /* Convert value size to uft16 */
+ host_exchg_data->value_size = 2 * (hvalue_len + 1);
+ /* Use values by string */
+ host_exchg_data->value_type = HV_REG_SZ;
+
+ if ((hkey_len < 0) || (hvalue_len < 0))
+ return (HV_KVP_E_FAIL);
+
+ return (KVP_SUCCESS);
+
+ default:
+ return (HV_KVP_E_FAIL);
+ }
+}
+
+
+/*
+ * Send the response back to the host.
+ */
+static void
+hv_kvp_respond_host(int error)
+{
+ struct hv_vmbus_icmsg_hdr *hv_icmsg_hdrp;
+
+ hv_icmsg_hdrp = (struct hv_vmbus_icmsg_hdr *)
+ &kvp_globals.rcv_buf[sizeof(struct hv_vmbus_pipe_hdr)];
+
+ if (error)
+ error = HV_KVP_E_FAIL;
+
+ hv_icmsg_hdrp->status = error;
+ hv_icmsg_hdrp->icflags = HV_ICMSGHDRFLAG_TRANSACTION | HV_ICMSGHDRFLAG_RESPONSE;
+
+ error = hv_vmbus_channel_send_packet(kvp_globals.channelp,
+ kvp_globals.rcv_buf,
+ kvp_globals.host_msg_len, kvp_globals.host_msg_id,
+ HV_VMBUS_PACKET_TYPE_DATA_IN_BAND, 0);
+
+ if (error)
+ hv_kvp_log_info("%s: hv_kvp_respond_host: sendpacket error:%d\n",
+ __func__, error);
+}
+
+
+/*
+ * This is the main kvp kernel process that interacts with both user daemon
+ * and the host
+ */
+static void
+hv_kvp_send_msg_to_daemon(void)
+{
+ /* Prepare kvp_msg to be sent to user */
+ hv_kvp_convert_hostmsg_to_usermsg();
+
+ /* Send the msg to user via function deamon_read - setting sema */
+ sema_post(&kvp_globals.dev_sema);
+}
+
+
+/*
+ * Function to read the kvp request buffer from host
+ * and interact with daemon
+ */
+static void
+hv_kvp_process_request(void *context)
+{
+ uint8_t *kvp_buf;
+ hv_vmbus_channel *channel = context;
+ uint32_t recvlen = 0;
+ uint64_t requestid;
+ struct hv_vmbus_icmsg_hdr *icmsghdrp;
+ int ret = 0;
+ uint64_t pending_cnt = 1;
+
+ hv_kvp_log_info("%s: entering hv_kvp_process_request\n", __func__);
+ kvp_buf = receive_buffer[HV_KVP];
+ ret = hv_vmbus_channel_recv_packet(channel, kvp_buf, 2 * PAGE_SIZE,
+ &recvlen, &requestid);
+
+ /*
+ * We start counting only after the daemon registers
+ * and therefore there could be requests pending in
+ * the VMBus that are not reflected in pending_cnt.
+ * Therefore we continue reading as long as either of
+ * the below conditions is true.
+ */
+
+ while ((pending_cnt>0) || ((ret == 0) && (recvlen > 0))) {
+
+ if ((ret == 0) && (recvlen>0)) {
+
+ icmsghdrp = (struct hv_vmbus_icmsg_hdr *)
+ &kvp_buf[sizeof(struct hv_vmbus_pipe_hdr)];
+
+ hv_kvp_transaction_init(recvlen, channel, requestid, kvp_buf);
+ if (icmsghdrp->icmsgtype == HV_ICMSGTYPE_NEGOTIATE) {
+ hv_kvp_negotiate_version(icmsghdrp, NULL, kvp_buf);
+ hv_kvp_respond_host(ret);
+
+ /*
+ * It is ok to not acquire the mutex before setting
+ * req_in_progress here because negotiation is the
+ * first thing that happens and hence there is no
+ * chance of a race condition.
+ */
+
+ kvp_globals.req_in_progress = false;
+ hv_kvp_log_info("%s :version negotiated\n", __func__);
+
+ } else {
+ if (!kvp_globals.daemon_busy) {
+
+ hv_kvp_log_info("%s: issuing qury to daemon\n", __func__);
+ mtx_lock(&kvp_globals.pending_mutex);
+ kvp_globals.req_timed_out = false;
+ kvp_globals.daemon_busy = true;
+ mtx_unlock(&kvp_globals.pending_mutex);
+
+ hv_kvp_send_msg_to_daemon();
+ hv_kvp_log_info("%s: waiting for daemon\n", __func__);
+ }
+
+ /* Wait 5 seconds for daemon to respond back */
+ tsleep(&kvp_globals, 0, "kvpworkitem", 5 * hz);
+ hv_kvp_log_info("%s: came out of wait\n", __func__);
+ }
+ }
+
+ mtx_lock(&kvp_globals.pending_mutex);
+
+ /* Notice that once req_timed_out is set to true
+ * it will remain true until the next request is
+ * sent to the daemon. The response from daemon
+ * is forwarded to host only when this flag is
+ * false.
+ */
+ kvp_globals.req_timed_out = true;
+
+ /*
+ * Cancel request if so need be.
+ */
+ if (hv_kvp_req_in_progress()) {
+ hv_kvp_log_info("%s: request was still active after wait so failing\n", __func__);
+ hv_kvp_respond_host(HV_KVP_E_FAIL);
+ kvp_globals.req_in_progress = false;
+ }
+
+ /*
+ * Decrement pending request count and
+ */
+ if (kvp_globals.pending_reqs>0) {
+ kvp_globals.pending_reqs = kvp_globals.pending_reqs - 1;
+ }
+ pending_cnt = kvp_globals.pending_reqs;
+
+ mtx_unlock(&kvp_globals.pending_mutex);
+
+ /*
+ * Try reading next buffer
+ */
+ recvlen = 0;
+ ret = hv_vmbus_channel_recv_packet(channel, kvp_buf, 2 * PAGE_SIZE,
+ &recvlen, &requestid);
+ hv_kvp_log_info("%s: read: context %p, pending_cnt %ju ret =%d, recvlen=%d\n",
+ __func__, context, pending_cnt, ret, recvlen);
+ }
+}
+
+
+/*
+ * Callback routine that gets called whenever there is a message from host
+ */
+void
+hv_kvp_callback(void *context)
+{
+ uint64_t pending_cnt = 0;
+
+ if (kvp_globals.register_done == false) {
+
+ kvp_globals.channelp = context;
+ } else {
+
+ mtx_lock(&kvp_globals.pending_mutex);
+ kvp_globals.pending_reqs = kvp_globals.pending_reqs + 1;
+ pending_cnt = kvp_globals.pending_reqs;
+ mtx_unlock(&kvp_globals.pending_mutex);
+ if (pending_cnt == 1) {
+ hv_kvp_log_info("%s: Queuing work item\n", __func__);
+ hv_queue_work_item(
+ service_table[HV_KVP].work_queue,
+ hv_kvp_process_request,
+ context
+ );
+ }
+ }
+}
+
+
+/*
+ * This function is called by the hv_kvp_init -
+ * creates character device hv_kvp_dev
+ * allocates memory to hv_kvp_dev_buf
+ *
+ */
+static int
+hv_kvp_dev_init(void)
+{
+ int error = 0;
+
+ /* initialize semaphore */
+ sema_init(&kvp_globals.dev_sema, 0, "hv_kvp device semaphore");
+ /* create character device */
+ error = make_dev_p(MAKEDEV_CHECKNAME | MAKEDEV_WAITOK,
+ &hv_kvp_dev,
+ &hv_kvp_cdevsw,
+ 0,
+ UID_ROOT,
+ GID_WHEEL,
+ 0640,
+ "hv_kvp_dev");
+
+ if (error != 0)
+ return (error);
+
+ /*
+ * Malloc with M_WAITOK flag will never fail.
+ */
+ hv_kvp_dev_buf = malloc(sizeof(*hv_kvp_dev_buf), M_HV_KVP_DEV_BUF, M_WAITOK |
+ M_ZERO);
+
+ return (0);
+}
+
+
+/*
+ * This function is called by the hv_kvp_deinit -
+ * destroy character device
+ */
+static void
+hv_kvp_dev_destroy(void)
+{
+
+ if (daemon_task != NULL) {
+ PROC_LOCK(daemon_task);
+ kern_psignal(daemon_task, SIGKILL);
+ PROC_UNLOCK(daemon_task);
+ }
+
+ destroy_dev(hv_kvp_dev);
+ free(hv_kvp_dev_buf, M_HV_KVP_DEV_BUF);
+ return;
+}
+
+
+static int
+hv_kvp_dev_open(struct cdev *dev, int oflags, int devtype,
+ struct thread *td)
+{
+
+ hv_kvp_log_info("%s: Opened device \"hv_kvp_device\" successfully.\n", __func__);
+ if (kvp_globals.dev_accessed)
+ return (-EBUSY);
+
+ daemon_task = curproc;
+ kvp_globals.dev_accessed = true;
+ kvp_globals.daemon_busy = false;
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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