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Revert the kvp code - there's still some work that

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needs to be done for that.

Discussed with:	Microsoft hyper-v devs
This commit is contained in:
grehan 2013-09-09 19:27:44 +00:00
parent 182a56e295
commit 8294851167
5 changed files with 8 additions and 1003 deletions
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1
sys/conf/files.amd64
View File

@ -226,7 +226,6 @@ dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c optional hyperv
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

982
sys/dev/hyperv/utilities/hv_kvp.c
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@ -1,982 +0,0 @@
/*-
* Copyright (c) 2009-2012 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.
*/
/*-
* 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.
*/
/* An implementation of key value pair (KVP) functionality for FreeBSD */
/**
* Code for handling all KVP related messages
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/reboot.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/kthread.h>
#include <sys/socket.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/un.h>
#include <sys/endian.h>
#include <net/if_arp.h>
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/netvsc/hv_net_vsc.h>
#include "hv_kvp.h"
/* Unicode Conversions */
#include <sys/cdefs.h>
#include <sys/_null.h>
static int hv_kvp_daemon_ack = 0;
SYSCTL_INT(_dev, OID_AUTO, hv_kvp_daemon_ack, CTLFLAG_RW, &hv_kvp_daemon_ack,
0, "First ack when daemon is ready");
static size_t convert8_to_16(uint16_t *, size_t, const char *, size_t, int *);
static size_t convert16_to_8(char *, size_t, const uint16_t *, size_t, int *);
/* Unicode declarations ends */
#define KVP_SUCCESS 0
#define kvp_hdr hdr.kvp_hdr
typedef struct hv_kvp_msg hv_kvp_bsd_msg;
static int hv_kvp_ready(void);
static int hv_kvp_transaction_active(void);
static void hv_kvp_transaction_init(uint32_t, hv_vmbus_channel *, uint64_t,
uint8_t *);
static void hv_kvp_conn_register(void);
static void hv_kvp_process_msg(void *p);
/*
* We maintain a global state, assuming only one transaction can be active
* at any point in time.
* Inited by the kvp callback routine (utils file) when a valid message is
* received from the host;
*/
static struct {
boolean_t kvp_ready; /* indicates if kvp module is ready or not */
boolean_t in_progress; /* transaction status - active or not */
uint32_t host_msg_len; /* length of host message */
hv_vmbus_channel *channelp; /* pointer to channel */
uint64_t host_msg_id; /* host message id */
hv_kvp_bsd_msg *host_kvp_msg; /* current message from the host */
uint8_t *rcv_buf; /* rcv buffer for communicating with the host*/
} kvp_msg_state;
/* We use an alternative, more convenient representation in the generator. */
/*
* Data Buffer used by kernel for to/from communication with user daemon
*/
static hv_kvp_bsd_msg hv_user_kvp_msg;
static boolean_t conn_ready; /* indicates if connection to daemon done */
static boolean_t register_done; /* indicates daemon registered with driver */
/* Original socket created during connection establishment */
static int sock_fd;
/* Handle to KVP device */
struct hv_device* kvp_hv_dev;
/*
* Check if kvp routines are ready to receive and respond
*/
static int
hv_kvp_ready(void)
{
return (kvp_msg_state.kvp_ready);
}
/*
* Check if kvp transaction is in progres
*/
static int
hv_kvp_transaction_active(void)
{
return (kvp_msg_state.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
*/
kvp_msg_state.in_progress = TRUE;
kvp_msg_state.host_msg_len = rcv_len;
kvp_msg_state.channelp = rcv_channel;
kvp_msg_state.host_msg_id = request_id;
kvp_msg_state.rcv_buf = rcv_buf;
kvp_msg_state.host_kvp_msg = (hv_kvp_bsd_msg *)&rcv_buf[
sizeof(struct hv_vmbus_pipe_hdr) +
sizeof(struct hv_vmbus_icmsg_hdr)];
}
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;
if (bootverbose)
printf("hv_kvp_negotiate_version\n");
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;
}
/*
* Respond with the maximum framework and service
* version numbers we can support.
*/
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;
}
/*
* Establish a UNIX socket connection with user daemon
*/
static int
kvp_connect_user(void)
{
int sock_error;
struct socket_args unix_sock;
struct sockaddr_un sock_sun;
struct thread *thread_ptr;
thread_ptr = curthread;
/* Open a Unix Domain socket */
unix_sock.domain = AF_UNIX;
unix_sock.type = SOCK_STREAM;
unix_sock.protocol = 0;
sock_error = sys_socket(thread_ptr, &unix_sock);
if (sock_error) {
return sock_error;
}
/* Try to connect to user daemon using Unix socket */
sock_fd = thread_ptr->td_retval[0];
sock_sun.sun_family = AF_UNIX;
strcpy(sock_sun.sun_path, BSD_SOC_PATH);
sock_sun.sun_len = sizeof(struct sockaddr_un) -
sizeof(sock_sun.sun_path) + strlen(sock_sun.sun_path) + 1;
sock_error = kern_connect(thread_ptr, sock_fd,
(struct sockaddr *) &sock_sun);
if (sock_error) {
kern_close(thread_ptr, sock_fd);
}
return (sock_error);
}
/*
* Send kvp msg on the established unix socket connection to the user
*/
static int
kvp_send_user(void)
{
int send_fd, send_error;
struct uio send_uio;
struct iovec send_iovec;
struct thread *thread_ptr = curthread;
if (!hv_kvp_ready()) {
hv_kvp_conn_register();
}
send_fd = sock_fd;
memset(&send_uio, 0, sizeof(struct uio));
send_iovec.iov_base = (void *)&hv_user_kvp_msg;
send_iovec.iov_len = sizeof(hv_kvp_bsd_msg);
send_uio.uio_iov = &send_iovec;
send_uio.uio_iovcnt = 1;
send_uio.uio_resid = send_iovec.iov_len;
send_uio.uio_segflg = UIO_SYSSPACE;
send_error = kern_writev(thread_ptr, send_fd, &send_uio);
return (send_error);
}
/*
* Receive kvp msg on the established unix socket connection from the user
*/
static int
kvp_rcv_user(void)
{
int rcv_fd, rcv_error=0;
struct uio rcv_uio;
struct iovec rcv_iovec;
struct thread *thread_ptr = curthread;
rcv_fd = sock_fd;
memset(&rcv_uio, 0, sizeof(struct uio));
rcv_iovec.iov_base = (void *)&hv_user_kvp_msg;
rcv_iovec.iov_len = sizeof(hv_kvp_bsd_msg);
rcv_uio.uio_iov = &rcv_iovec;
rcv_uio.uio_iovcnt = 1;
rcv_uio.uio_resid = rcv_iovec.iov_len;
rcv_uio.uio_segflg = UIO_SYSSPACE;
rcv_error = kern_readv(thread_ptr, rcv_fd, &rcv_uio);
return (rcv_error);
}
/*
* Converts utf8 to utf16
*/
static size_t
convert8_to_16(uint16_t *dst, size_t dst_len,const char *src, size_t src_len,
int *errp)
{
const unsigned char *s;
size_t spos, dpos;
int error, flags = 1;
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 & 0x03)
&& (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
}
/*
* Converts utf16 to utf8
*/
static size_t
convert16_to_8(char *dst, size_t dst_len, const uint16_t *src, size_t src_len,
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
}
/*
* Convert ip related info in umsg from utf8 to utf16 and store in hmsg
*/
static int
ipinfo_utf8_utf16(hv_kvp_bsd_msg *umsg, struct hv_kvp_ip_msg *host_ip_msg)
{
int err_ip, err_subnet, err_gway, err_dns, err_adap;
size_t len=0;
len = convert8_to_16((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),
&err_ip);
len = convert8_to_16((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),
&err_subnet);
len = convert8_to_16((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),
&err_gway);
len = convert8_to_16((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),
&err_dns);
len = convert8_to_16((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),
&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
ipinfo_utf16_utf8(struct hv_kvp_ip_msg *host_ip_msg, hv_kvp_bsd_msg *umsg)
{
int err_ip, err_subnet, err_gway, err_dns, err_adap;
int j;
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];
int len=16;
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];
} *id;
device_t *devs;
int devcnt;
/* IP Address */
len = convert16_to_8((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, &err_ip);
/* Adapter ID : GUID */
len = convert16_to_8((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, &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 (j = 0; j < 16 ; j++) {
sprintf(&guid_instance[j * 2], "%02x",
hv_dev->device_id.data[j]);
}
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]));
/*
* XXX Need to implement multiple network adapter
* handler
*/
if (strncmp(buf,
(char *)umsg->body.kvp_ip_val.adapter_id,39) ==
0) {
/* Pass interface Name */
strcpy((char *)umsg->body.kvp_ip_val.adapter_id,if_name);
break;
} else {
/* XXX Implement safe exit */
}
}
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;
convert16_to_8((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, &err_subnet);
convert16_to_8((char *)umsg->body.kvp_ip_val.gate_way,
MAX_GATEWAY_SIZE,
(uint16_t *)host_ip_msg->kvp_ip_val.gate_way,
MAX_GATEWAY_SIZE, &err_gway);
convert16_to_8((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, &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
host_user_kvp_msg(void)
{
int utf_err=0;
uint32_t value_type;
struct hv_kvp_ip_msg *host_ip_msg = (struct hv_kvp_ip_msg *)kvp_msg_state.host_kvp_msg;
hv_kvp_bsd_msg *hmsg = kvp_msg_state.host_kvp_msg;
hv_kvp_bsd_msg *umsg = &hv_user_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:
ipinfo_utf16_utf8(host_ip_msg, umsg);
break;
case HV_KVP_OP_GET_IP_INFO:
convert16_to_8((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, &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 =
convert16_to_8(
(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,
&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 =
convert16_to_8(
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,
&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 =
convert16_to_8(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,
&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 =
convert16_to_8(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,
&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:
printf("host_user_kvp_msg: Invalid operation : %d\n",
umsg->kvp_hdr.operation);
}
}
/*
* Prepare a host kvp msg based on user kvp msg (utf8 to utf16)
*/
static int
user_host_kvp_msg(void)
{
int hkey_len=0, hvalue_len=0, utf_err=0;
struct hv_kvp_exchg_msg_value *host_exchg_data;
char *key_name, *value;
hv_kvp_bsd_msg *umsg = &hv_user_kvp_msg;
hv_kvp_bsd_msg *hmsg = kvp_msg_state.host_kvp_msg;
struct hv_kvp_ip_msg *host_ip_msg = (struct hv_kvp_ip_msg *)hmsg;
switch (kvp_msg_state.host_kvp_msg->kvp_hdr.operation) {
case HV_KVP_OP_GET_IP_INFO:
return(ipinfo_utf8_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 = convert8_to_16((uint16_t *) host_exchg_data->key,
((HV_KVP_EXCHANGE_MAX_KEY_SIZE / 2) - 2),
key_name, strlen(key_name),
&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 =
convert8_to_16( (uint16_t *)host_exchg_data->msg_value.value,
( (HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2) - 2),
value, strlen(value),
&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 = convert8_to_16(
(uint16_t *) host_exchg_data->msg_value.value,
((HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2) - 2),
value, strlen(value),
&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
kvp_respond_host(int error)
{
struct hv_vmbus_icmsg_hdr *hv_icmsg_hdrp;
if (!hv_kvp_transaction_active()) {
/* XXX Triage why we are here */
goto finish;
}
hv_icmsg_hdrp = (struct hv_vmbus_icmsg_hdr *)
&kvp_msg_state.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_msg_state.channelp,
kvp_msg_state.rcv_buf,
kvp_msg_state.host_msg_len, kvp_msg_state.host_msg_id,
HV_VMBUS_PACKET_TYPE_DATA_IN_BAND, 0);
if (error) {
printf("kvp_respond_host: sendpacket error:%d\n", error);
}
/* Now ready to process another transaction */
kvp_msg_state.in_progress = FALSE;
finish:
return;
}
/*
* Initiate a connection and receive REGISTER message from the user daemon
*/
static void
hv_kvp_conn_register()
{
int error = KVP_SUCCESS;
if (conn_ready == FALSE) {
/* Wait until the user daemon is ready */
if (!hv_kvp_daemon_ack) {
return;
}
if (kvp_connect_user() != KVP_SUCCESS) {
return;
} else {
conn_ready = TRUE;
}
}
/*
* First message from the user should be a HV_KVP_OP_REGISTER msg
*/
if (register_done == FALSE) {
error = kvp_rcv_user(); /* receive a message from user */
if (hv_user_kvp_msg.kvp_hdr.operation == HV_KVP_OP_REGISTER) {
register_done = TRUE;
kvp_msg_state.kvp_ready = TRUE;
}
}
}
/**
* This is the main kvp kernel process that interacts with both user daemon
* and the host
*/
static void
hv_kvp_process_msg(void *p)
{
int error = KVP_SUCCESS;
/* Prepare kvp_msg to be sent to user */
host_user_kvp_msg();
/* Send msg to user on Unix Socket */
error = kvp_send_user();
if (error != KVP_SUCCESS) {
if (error == EPIPE) {
conn_ready = FALSE;
register_done = FALSE;
kvp_msg_state.kvp_ready = FALSE;
}
kvp_respond_host(HV_KVP_E_FAIL);
return;
}
/* Rcv response from user on Unix Socket */
hv_user_kvp_msg.hdr.error = HV_KVP_E_FAIL;
error = kvp_rcv_user();
if ((error == KVP_SUCCESS) &&
(hv_user_kvp_msg.hdr.error != HV_KVP_E_FAIL)) {
/* Convert user kvp to host kvp and then respond */
error = user_host_kvp_msg();
if (error != KVP_SUCCESS) {
kvp_respond_host(HV_KVP_E_FAIL);
} else {
kvp_respond_host(hv_user_kvp_msg.hdr.error);
}
} else {
if (error == EPIPE) {
conn_ready = FALSE;
register_done = FALSE;
kvp_msg_state.kvp_ready = FALSE;
}
kvp_respond_host(HV_KVP_E_FAIL);
}
}
/*
* Callback routine that gets called whenever there is a message from host
*/
void
hv_kvp_callback(void *context)
{
uint8_t* kvp_buf;
hv_vmbus_channel* channel = context;
uint32_t recvlen;
uint64_t requestid;
int ret = 0;
struct hv_vmbus_icmsg_hdr *icmsghdrp;
kvp_buf = receive_buffer[HV_KVP];
/*
* Check if already one transaction is under process
*/
if (!hv_kvp_transaction_active()) {
ret = hv_vmbus_channel_recv_packet(channel, kvp_buf,
2 * PAGE_SIZE, &recvlen, &requestid);
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);
kvp_respond_host(ret);
} else {
/*
* Queue packet for processing.
*/
hv_queue_work_item(
service_table[HV_KVP].work_queue,
hv_kvp_process_msg,
NULL);
}
} else {
ret = HV_KVP_E_FAIL;
}
} else {
ret = HV_KVP_E_FAIL;
}
if (ret != 0)
kvp_respond_host(ret);
}
int
hv_kvp_init(hv_vmbus_service *srv)
{
int error;
hv_work_queue *work_queue;
error = 0;
work_queue = hv_work_queue_create("KVP Service");
if (work_queue == NULL) {
error = ENOMEM;
} else
srv->work_queue = work_queue;
return (error);
}

14
sys/dev/hyperv/utilities/hv_kvp.h
View File

@ -250,17 +250,17 @@ struct hv_kvp_ip_msg {
#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_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
#define HV_NANO_SEC_PER_SEC 1000000000
typedef struct hv_vmbus_service {
hv_guid guid; /* Hyper-V GUID */
@ -282,6 +282,4 @@ typedef struct 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);
#endif /* _KVP_H */

9
sys/dev/hyperv/utilities/hv_util.c
View File

@ -82,15 +82,6 @@ hv_vmbus_service service_table[] = {
.enabled = TRUE,
.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,
},
};
/*

5
sys/modules/hyperv/utilities/Makefile
View File

@ -2,10 +2,9 @@
.PATH: ${.CURDIR}/../../../dev/hyperv/utilities
KMOD= hv_utils
KMOD= hv_utils
SRCS = hv_kvp.c \
hv_util.c
SRCS = hv_util.c
CFLAGS+= -I${.CURDIR}/../../../dev/hyperv/include \
-I${.CURDIR}/../../../dev/hyperv/vmbus