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authordelphij <delphij@FreeBSD.org>2014-09-25 20:34:13 +0000
committerdelphij <delphij@FreeBSD.org>2014-09-25 20:34:13 +0000
commit8e573ba7c9639e710661dce67b9171d569c8772d (patch)
tree4de670a3ea447f4c4dbc2993ebec26af3478058f /sys/dev/hyperv
parentbb5379e9a2f748abed4de69c61b20523c4d77ac7 (diff)
downloadFreeBSD-src-8e573ba7c9639e710661dce67b9171d569c8772d.zip
FreeBSD-src-8e573ba7c9639e710661dce67b9171d569c8772d.tar.gz
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)
Diffstat (limited to 'sys/dev/hyperv')
-rw-r--r--sys/dev/hyperv/include/hyperv.h29
-rw-r--r--sys/dev/hyperv/utilities/hv_kvp.c1001
-rw-r--r--sys/dev/hyperv/utilities/hv_kvp.h143
-rw-r--r--sys/dev/hyperv/utilities/hv_util.c47
-rw-r--r--sys/dev/hyperv/utilities/unicode.h201
5 files changed, 1319 insertions, 102 deletions
diff --git a/sys/dev/hyperv/include/hyperv.h b/sys/dev/hyperv/include/hyperv.h
index 4257b37..8a45d89 100644
--- a/sys/dev/hyperv/include/hyperv.h
+++ b/sys/dev/hyperv/include/hyperv.h
@@ -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__ */
diff --git a/sys/dev/hyperv/utilities/hv_kvp.c b/sys/dev/hyperv/utilities/hv_kvp.c
new file mode 100644
index 0000000..848d364
--- /dev/null
+++ b/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@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;
+ return (0);
+}
+
+
+static int
+hv_kvp_dev_close(struct cdev *dev __unused, int fflag __unused, int devtype __unused,
+ struct thread *td __unused)
+{
+
+ hv_kvp_log_info("%s: Closing device \"hv_kvp_device\".\n", __func__);
+ kvp_globals.dev_accessed = false;
+ kvp_globals.register_done = false;
+ return (0);
+}
+
+
+/*
+ * hv_kvp_daemon read invokes this function
+ * acts as a send to daemon
+ */
+static int
+hv_kvp_dev_daemon_read(struct cdev *dev __unused, struct uio *uio, int ioflag __unused)
+{
+ size_t amt;
+ int error = 0;
+
+ /* Check hv_kvp daemon registration status*/
+ if (!kvp_globals.register_done)
+ return (KVP_ERROR);
+
+ sema_wait(&kvp_globals.dev_sema);
+
+ memcpy(hv_kvp_dev_buf, &kvp_globals.daemon_kvp_msg, sizeof(struct hv_kvp_msg));
+
+ amt = MIN(uio->uio_resid, uio->uio_offset >= BUFFERSIZE + 1 ? 0 :
+ BUFFERSIZE + 1 - uio->uio_offset);
+
+ if ((error = uiomove(hv_kvp_dev_buf, amt, uio)) != 0)
+ hv_kvp_log_info("%s: hv_kvp uiomove read failed!\n", __func__);
+
+ return (error);
+}
+
+
+/*
+ * hv_kvp_daemon write invokes this function
+ * acts as a recieve from daemon
+ */
+static int
+hv_kvp_dev_daemon_write(struct cdev *dev __unused, struct uio *uio, int ioflag __unused)
+{
+ size_t amt;
+ int error = 0;
+
+ uio->uio_offset = 0;
+
+ amt = MIN(uio->uio_resid, BUFFERSIZE);
+ error = uiomove(hv_kvp_dev_buf, amt, uio);
+
+ if (error != 0)
+ return (error);
+
+ memcpy(&kvp_globals.daemon_kvp_msg, hv_kvp_dev_buf, sizeof(struct hv_kvp_msg));
+
+ if (kvp_globals.register_done == false) {
+ if (kvp_globals.daemon_kvp_msg.kvp_hdr.operation == HV_KVP_OP_REGISTER) {
+
+ kvp_globals.register_done = true;
+ if (kvp_globals.channelp) {
+
+ hv_kvp_callback(kvp_globals.channelp);
+ }
+ }
+ else {
+ hv_kvp_log_info("%s, KVP Registration Failed\n", __func__);
+ return (KVP_ERROR);
+ }
+ } else {
+
+ mtx_lock(&kvp_globals.pending_mutex);
+
+ if(!kvp_globals.req_timed_out) {
+
+ hv_kvp_convert_usermsg_to_hostmsg();
+ hv_kvp_respond_host(KVP_SUCCESS);
+ wakeup(&kvp_globals);
+ kvp_globals.req_in_progress = false;
+ }
+
+ kvp_globals.daemon_busy = false;
+ mtx_unlock(&kvp_globals.pending_mutex);
+ }
+
+ return (error);
+}
+
+
+/*
+ * hv_kvp_daemon poll invokes this function to check if data is available
+ * for daemon to read.
+ */
+static int
+hv_kvp_dev_daemon_poll(struct cdev *dev __unused, int events, struct thread *td __unused)
+{
+ int revents = 0;
+
+ mtx_lock(&kvp_globals.pending_mutex);
+ /*
+ * We check global flag daemon_busy for the data availiability for
+ * userland to read. Deamon_busy is set to true before driver has data
+ * for daemon to read. It is set to false after daemon sends
+ * then response back to driver.
+ */
+ if (kvp_globals.daemon_busy == true)
+ revents = POLLIN;
+ mtx_unlock(&kvp_globals.pending_mutex);
+
+ return (revents);
+}
+
+
+/*
+ * hv_kvp initialization function
+ * called from hv_util service.
+ *
+ */
+int
+hv_kvp_init(hv_vmbus_service *srv)
+{
+ int error = 0;
+ hv_work_queue *work_queue = NULL;
+
+ memset(&kvp_globals, 0, sizeof(kvp_globals));
+
+ work_queue = hv_work_queue_create("KVP Service");
+ if (work_queue == NULL) {
+ hv_kvp_log_info("%s: Work queue alloc failed\n", __func__);
+ error = ENOMEM;
+ hv_kvp_log_error("%s: ENOMEM\n", __func__);
+ goto Finish;
+ }
+ srv->work_queue = work_queue;
+
+ error = hv_kvp_dev_init();
+ mtx_init(&kvp_globals.pending_mutex, "hv-kvp pending mutex",
+ NULL, MTX_DEF);
+ kvp_globals.pending_reqs = 0;
+
+
+Finish:
+ return (error);
+}
+
+
+void
+hv_kvp_deinit(void)
+{
+ hv_kvp_dev_destroy();
+ mtx_destroy(&kvp_globals.pending_mutex);
+
+ return;
+}
diff --git a/sys/dev/hyperv/utilities/hv_kvp.h b/sys/dev/hyperv/utilities/hv_kvp.h
index f7dccf7..b67373fa 100644
--- a/sys/dev/hyperv/utilities/hv_kvp.h
+++ b/sys/dev/hyperv/utilities/hv_kvp.h
@@ -1,7 +1,5 @@
/*-
- * Copyright (c) 2009-2012 Microsoft Corp.
- * Copyright (c) 2012 NetApp Inc.
- * Copyright (c) 2012 Citrix Inc.
+ * Copyright (c) 2014 Microsoft Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -24,13 +22,15 @@
* 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.
+ *
+ * $FreeBSD$
*/
#ifndef _KVP_H
#define _KVP_H
/*
- * An implementation of HyperV key value pair (KVP) functionality for FreeBSD
+ * An implementation of HyperV key value pair (KVP) functionality for FreeBSD
*
*/
@@ -53,15 +53,15 @@
/*
* bytes, including any null terminators
*/
-#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048)
+#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048)
/*
* Maximum key size - the registry limit for the length of an entry name
* is 256 characters, including the null terminator
*/
+#define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512)
-#define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512)
/*
* In FreeBSD, we implement the KVP functionality in two components:
@@ -111,30 +111,20 @@
* (not supported), a NULL key string is returned.
*/
-
+
/*
* Registry value types.
*/
+#define HV_REG_SZ 1
+#define HV_REG_U32 4
+#define HV_REG_U64 8
-#define HV_REG_SZ 1
-#define HV_REG_U32 4
-#define HV_REG_U64 8
-
-
-/*
- * Daemon code not supporting IP injection (legacy daemon).
- */
-
-#define HV_KVP_OP_REGISTER 4
/*
* Daemon code supporting IP injection.
- * The KVP opcode field is used to communicate the
- * registration information; so define a namespace that
- * will be distinct from the host defined KVP opcode.
*/
+#define HV_KVP_OP_REGISTER 4
-#define KVP_OP_REGISTER1 100
enum hv_kvp_exchg_op {
HV_KVP_OP_GET = 0,
@@ -155,41 +145,41 @@ enum hv_kvp_exchg_pool {
HV_KVP_POOL_COUNT /* Number of pools, must be last. */
};
+
/*
* Some Hyper-V status codes.
*/
-#define HV_KVP_S_OK 0x00000000
-#define HV_KVP_E_FAIL 0x80004005
-#define HV_KVP_S_CONT 0x80070103
-#define HV_ERROR_NOT_SUPPORTED 0x80070032
-#define HV_ERROR_MACHINE_LOCKED 0x800704F7
-#define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F
-#define HV_INVALIDARG 0x80070057
-#define HV_KVP_GUID_NOTFOUND 0x80041002
+#define HV_KVP_S_OK 0x00000000
+#define HV_KVP_E_FAIL 0x80004005
+#define HV_KVP_S_CONT 0x80070103
+#define HV_ERROR_NOT_SUPPORTED 0x80070032
+#define HV_ERROR_MACHINE_LOCKED 0x800704F7
+#define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F
+#define HV_INVALIDARG 0x80070057
+#define HV_KVP_GUID_NOTFOUND 0x80041002
-#define ADDR_FAMILY_NONE 0x00
-#define ADDR_FAMILY_IPV4 0x01
-#define ADDR_FAMILY_IPV6 0x02
+#define ADDR_FAMILY_NONE 0x00
+#define ADDR_FAMILY_IPV4 0x01
+#define ADDR_FAMILY_IPV6 0x02
-#define MAX_ADAPTER_ID_SIZE 128
-#define MAX_IP_ADDR_SIZE 1024
-#define MAX_GATEWAY_SIZE 512
+#define MAX_ADAPTER_ID_SIZE 128
+#define MAX_IP_ADDR_SIZE 1024
+#define MAX_GATEWAY_SIZE 512
struct hv_kvp_ipaddr_value {
- uint16_t adapter_id[MAX_ADAPTER_ID_SIZE];
- uint8_t addr_family;
- uint8_t dhcp_enabled;
- uint16_t ip_addr[MAX_IP_ADDR_SIZE];
- uint16_t sub_net[MAX_IP_ADDR_SIZE];
- uint16_t gate_way[MAX_GATEWAY_SIZE];
- uint16_t dns_addr[MAX_IP_ADDR_SIZE];
-} __attribute__((packed));
-
+ uint16_t adapter_id[MAX_ADAPTER_ID_SIZE];
+ uint8_t addr_family;
+ uint8_t dhcp_enabled;
+ uint16_t ip_addr[MAX_IP_ADDR_SIZE];
+ uint16_t sub_net[MAX_IP_ADDR_SIZE];
+ uint16_t gate_way[MAX_GATEWAY_SIZE];
+ uint16_t dns_addr[MAX_IP_ADDR_SIZE];
+}__attribute__((packed));
struct hv_kvp_hdr {
- uint8_t operation;
- uint8_t pool;
+ uint8_t operation;
+ uint8_t pool;
uint16_t pad;
} __attribute__((packed));
@@ -197,9 +187,9 @@ struct hv_kvp_exchg_msg_value {
uint32_t value_type;
uint32_t key_size;
uint32_t value_size;
- uint8_t key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+ uint8_t key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
union {
- uint8_t value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
+ uint8_t value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
uint32_t value_u32;
uint64_t value_u64;
} msg_value;
@@ -229,16 +219,16 @@ struct hv_kvp_register {
struct hv_kvp_msg {
union {
- struct hv_kvp_hdr kvp_hdr;
- int error;
+ struct hv_kvp_hdr kvp_hdr;
+ uint32_t error;
} hdr;
union {
- struct hv_kvp_msg_get kvp_get;
- struct hv_kvp_msg_set kvp_set;
+ struct hv_kvp_msg_get kvp_get;
+ struct hv_kvp_msg_set kvp_set;
struct hv_kvp_msg_delete kvp_delete;
struct hv_kvp_msg_enumerate kvp_enum_data;
- struct hv_kvp_ipaddr_value kvp_ip_val;
- struct hv_kvp_register kvp_register;
+ struct hv_kvp_ipaddr_value kvp_ip_val;
+ struct hv_kvp_register kvp_register;
} body;
} __attribute__((packed));
@@ -248,38 +238,17 @@ struct hv_kvp_ip_msg {
struct hv_kvp_ipaddr_value kvp_ip_val;
} __attribute__((packed));
-#define BSD_SOC_PATH "/etc/hyperv/socket"
-
-#define HV_SHUT_DOWN 0
-#define HV_TIME_SYNCH 1
-#define HV_HEART_BEAT 2
-#define HV_KVP 3
-#define HV_MAX_UTIL_SERVICES 4
-
-#define HV_WLTIMEDELTA 116444736000000000L /* in 100ns unit */
-#define HV_ICTIMESYNCFLAG_PROBE 0
-#define HV_ICTIMESYNCFLAG_SYNC 1
-#define HV_ICTIMESYNCFLAG_SAMPLE 2
-#define HV_NANO_SEC_PER_SEC 1000000000
-
-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[];
+
+#define HV_SHUT_DOWN 0
+#define HV_TIME_SYNCH 1
+#define HV_HEART_BEAT 2
+#define HV_KVP 3
+#define HV_MAX_UTIL_SERVICES 4
+
+#define HV_WLTIMEDELTA 116444736000000000L /* in 100ns unit */
+#define HV_ICTIMESYNCFLAG_PROBE 0
+#define HV_ICTIMESYNCFLAG_SYNC 1
+#define HV_ICTIMESYNCFLAG_SAMPLE 2
+#define HV_NANO_SEC_PER_SEC 1000000000
#endif /* _KVP_H */
diff --git a/sys/dev/hyperv/utilities/hv_util.c b/sys/dev/hyperv/utilities/hv_util.c
index e86cbd7..91bbc53 100644
--- a/sys/dev/hyperv/utilities/hv_util.c
+++ b/sys/dev/hyperv/utilities/hv_util.c
@@ -1,7 +1,5 @@
/*-
- * Copyright (c) 2009-2012 Microsoft Corp.
- * Copyright (c) 2012 NetApp Inc.
- * Copyright (c) 2012 Citrix Inc.
+ * Copyright (c) 2014 Microsoft Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -24,9 +22,11 @@
* 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.
+ *
+ * $FreeBSD$
*/
-/**
+/*
* A common driver for all hyper-V util services.
*/
@@ -53,7 +53,7 @@ static void hv_timesync_cb(void *context);
static int hv_timesync_init(hv_vmbus_service *serv);
-/**
+/*
* Note: GUID codes below are predefined by the host hypervisor
* (Hyper-V and Azure)interface and required for correct operation.
*/
@@ -80,7 +80,16 @@ hv_vmbus_service service_table[] = {
0xab, 0x55, 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d},
.name = "Hyper-V Heartbeat Service\n",
.enabled = TRUE,
- .callback = hv_heartbeat_cb,
+ .callback = hv_heartbeat_cb,
+ },
+
+ /* KVP (Key Value Pair) Service */
+ { .guid.data = {0xe7, 0xf4, 0xa0, 0xa9, 0x45, 0x5a, 0x96, 0x4d,
+ 0xb8, 0x27, 0x8a, 0x84, 0x1e, 0x8c, 0x3, 0xe6},
+ .name = "Hyper-V KVP Service\n",
+ .enabled = TRUE,
+ .init = hv_kvp_init,
+ .callback = hv_kvp_callback,
},
};
@@ -90,6 +99,8 @@ hv_vmbus_service service_table[] = {
*/
uint8_t *receive_buffer[HV_MAX_UTIL_SERVICES];
+static boolean_t destroyed_kvp = FALSE;
+
struct hv_ictimesync_data {
uint64_t parenttime;
uint64_t childtime;
@@ -143,7 +154,7 @@ hv_negotiate_version(
static void
hv_set_host_time(void *context)
{
- time_sync_data *time_msg = context;
+ time_sync_data* time_msg = (time_sync_data*) context;
uint64_t hosttime = time_msg->data;
struct timespec guest_ts, host_ts;
uint64_t host_tns;
@@ -253,12 +264,12 @@ hv_timesync_cb(void *context)
static void
hv_shutdown_cb(void *context)
{
- uint8_t* buf;
+ uint8_t* buf;
hv_vmbus_channel* channel = context;
- uint8_t execute_shutdown = 0;
+ uint8_t execute_shutdown = 0;
hv_vmbus_icmsg_hdr* icmsghdrp;
- uint32_t recv_len;
- uint64_t request_id;
+ uint32_t recv_len;
+ uint64_t request_id;
int ret;
hv_vmbus_shutdown_msg_data* shutdown_msg;
@@ -421,6 +432,11 @@ hv_util_detach(device_t dev)
struct hv_vmbus_service* service;
size_t receive_buffer_offset;
+ if (!destroyed_kvp) {
+ hv_kvp_deinit();
+ destroyed_kvp = TRUE;
+ }
+
hv_dev = vmbus_get_devctx(dev);
hv_vmbus_channel_close(hv_dev->channel);
@@ -432,21 +448,22 @@ hv_util_detach(device_t dev)
free(receive_buffer[receive_buffer_offset], M_DEVBUF);
receive_buffer[receive_buffer_offset] = NULL;
-
return (0);
}
-static void hv_util_init(void)
+static void
+hv_util_init(void)
{
}
-static int hv_util_modevent(module_t mod, int event, void *arg)
+static int
+hv_util_modevent(module_t mod, int event, void *arg)
{
switch (event) {
case MOD_LOAD:
break;
case MOD_UNLOAD:
- break;
+ break;
default:
break;
}
diff --git a/sys/dev/hyperv/utilities/unicode.h b/sys/dev/hyperv/utilities/unicode.h
new file mode 100644
index 0000000..696777c
--- /dev/null
+++ b/sys/dev/hyperv/utilities/unicode.h
@@ -0,0 +1,201 @@
+/* $NetBSD: unicode.h,v 1.1.1.1 2007/03/06 00:10:39 dillo Exp $ */
+
+/*-
+ * Copyright (c) 2007 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron.
+ *
+ * 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, 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+#define UNICODE_DECOMPOSE 0x01
+#define UNICODE_PRECOMPOSE 0x02
+#define UNICODE_UTF8_LATIN1_FALLBACK 0x03
+
+size_t utf8_to_utf16(uint16_t *, size_t, const char *, size_t, int, int *);
+size_t utf16_to_utf8(char *, size_t, const uint16_t *, size_t, int, int *);
+
+size_t
+utf8_to_utf16(uint16_t *dst, size_t dst_len,
+ const char *src, size_t src_len,
+ int flags, int *errp)
+{
+ const unsigned char *s;
+ size_t spos, dpos;
+ int error;
+ uint16_t c;
+
+#define IS_CONT(c) (((c)&0xc0) == 0x80)
+
+ error = 0;
+ s = (const unsigned char *)src;
+ spos = dpos = 0;
+ while (spos<src_len) {
+ if (s[spos] < 0x80)
+ c = s[spos++];
+ else if ((flags & UNICODE_UTF8_LATIN1_FALLBACK)
+ && (spos >= src_len || !IS_CONT(s[spos+1]))
+ && s[spos]>=0xa0) {
+ /* not valid UTF-8, assume ISO 8859-1 */
+ c = s[spos++];
+ }
+ else if (s[spos] < 0xc0 || s[spos] >= 0xf5) {
+ /* continuation byte without lead byte
+ or lead byte for codepoint above 0x10ffff */
+ error++;
+ spos++;
+ continue;
+ }
+ else if (s[spos] < 0xe0) {
+ if (spos >= src_len || !IS_CONT(s[spos+1])) {
+ spos++;
+ error++;
+ continue;
+ }
+ c = ((s[spos] & 0x3f) << 6) | (s[spos+1] & 0x3f);
+ spos += 2;
+ if (c < 0x80) {
+ /* overlong encoding */
+ error++;
+ continue;
+ }
+ }
+ else if (s[spos] < 0xf0) {
+ if (spos >= src_len-2
+ || !IS_CONT(s[spos+1]) || !IS_CONT(s[spos+2])) {
+ spos++;
+ error++;
+ continue;
+ }
+ c = ((s[spos] & 0x0f) << 12) | ((s[spos+1] & 0x3f) << 6)
+ | (s[spos+2] & 0x3f);
+ spos += 3;
+ if (c < 0x800 || (c & 0xdf00) == 0xd800 ) {
+ /* overlong encoding or encoded surrogate */
+ error++;
+ continue;
+ }
+ }
+ else {
+ uint32_t cc;
+ /* UTF-16 surrogate pair */
+
+ if (spos >= src_len-3 || !IS_CONT(s[spos+1])
+ || !IS_CONT(s[spos+2]) || !IS_CONT(s[spos+3])) {
+ spos++;
+ error++;
+
+ continue;
+ }
+ cc = ((s[spos] & 0x03) << 18) | ((s[spos+1] & 0x3f) << 12)
+ | ((s[spos+2] & 0x3f) << 6) | (s[spos+3] & 0x3f);
+ spos += 4;
+ if (cc < 0x10000) {
+ /* overlong encoding */
+ error++;
+ continue;
+ }
+ if (dst && dpos < dst_len)
+ dst[dpos] = (0xd800 | ((cc-0x10000)>>10));
+ dpos++;
+ c = 0xdc00 | ((cc-0x10000) & 0x3ffff);
+ }
+
+ if (dst && dpos < dst_len)
+ dst[dpos] = c;
+ dpos++;
+ }
+
+ if (errp)
+ *errp = error;
+
+ return dpos;
+
+#undef IS_CONT
+}
+
+
+size_t
+utf16_to_utf8(char *dst, size_t dst_len,
+ const uint16_t *src, size_t src_len,
+ int flags, int *errp)
+{
+ uint16_t spos, dpos;
+ int error;
+
+#define CHECK_LENGTH(l) (dpos > dst_len-(l) ? dst=NULL : NULL)
+#define ADD_BYTE(b) (dst ? dst[dpos] = (b) : 0, dpos++)
+
+ error = 0;
+ dpos = 0;
+ for (spos=0; spos<src_len; spos++) {
+ if (src[spos] < 0x80) {
+ CHECK_LENGTH(1);
+ ADD_BYTE(src[spos]);
+ }
+ else if (src[spos] < 0x800) {
+ CHECK_LENGTH(2);
+ ADD_BYTE(0xc0 | (src[spos]>>6));
+ ADD_BYTE(0x80 | (src[spos] & 0x3f));
+ }
+ else if ((src[spos] & 0xdc00) == 0xd800) {
+ uint32_t c;
+ /* first surrogate */
+ if (spos == src_len - 1 || (src[spos] & 0xdc00) != 0xdc00) {
+ /* no second surrogate present */
+ error++;
+ continue;
+ }
+ spos++;
+ CHECK_LENGTH(4);
+ c = (((src[spos]&0x3ff) << 10) | (src[spos+1]&0x3ff)) + 0x10000;
+ ADD_BYTE(0xf0 | (c>>18));
+ ADD_BYTE(0x80 | ((c>>12) & 0x3f));
+ ADD_BYTE(0x80 | ((c>>6) & 0x3f));
+ ADD_BYTE(0x80 | (c & 0x3f));
+ }
+ else if ((src[spos] & 0xdc00) == 0xdc00) {
+ /* second surrogate without preceding first surrogate */
+ error++;
+ }
+ else {
+ CHECK_LENGTH(3);
+ ADD_BYTE(0xe0 | src[spos]>>12);
+ ADD_BYTE(0x80 | ((src[spos]>>6) & 0x3f));
+ ADD_BYTE(0x80 | (src[spos] & 0x3f));
+ }
+ }
+
+ if (errp)
+ *errp = error;
+
+ return dpos;
+
+#undef ADD_BYTE
+#undef CHECK_LENGTH
+}
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