ipmilan.c
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ipmilan.c
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	/** @file
	* clumanager 1.2.x linux-cluster fence and/or GFS fence
	* module for Intel/Bull/Dell Tiger4 machines via IPMI over lan.
	* (Probably works with anything ipmitool can control, though.)
	*
	* Note: REQUIRES ipmitool to operate. On certain machines, the hardware
	* manufacturer provides this tool for you. Otherwise, check:
	*
	* http://ipmitool.sourceforge.net
	*
	*/

	#include "clusterautoconfig.h"

	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <signal.h>
	#include <string.h>
	#include <errno.h>
	#include <limits.h>
	#include <sys/wait.h>
	#include <sys/stat.h>
	#include <libintl.h>

	/* fenced doesn't use the remote calls */
	#define ST_STATUS 0
	#define ST_POWERON 1
	#define ST_POWEROFF 2
	#define ST_GENERIC_RESET 3
	#define ST_CYCLE 4
	#define ST_DIAG 5

	#define DEFAULT_TIMEOUT 20
	#define DEFAULT_POWER_WAIT 2

	#define DEFAULT_METHOD "onoff"

	/* We should follow FenceAgentsAPI standard*/
	#define ERR_OFF_SUCCESSFUL 0
	#define ERR_OFF_FAIL 1

	#define ERR_ON_SUCCESSFUL 0
	#define ERR_ON_FAIL 1

	#define ERR_STATUS_ON 0
	#define ERR_STATUS_FAIL 1
	#define ERR_STATUS_OFF 2

	#define ERR_OK 0

	#define log(lvl, fmt, args...) fprintf(stderr, fmt, ##args)
	#include <libgen.h>
	#include "copyright.cf"

	#include "expect.h"

	#define IPMIID "IPMI over LAN driver"
	#define NOTIPMI "Destroyed IPMI over LAN driver"


	#define dbg_printf(i, lvl, fmt, args...) \
	do { \
	if ( (i)->i_verbose >= lvl) { \
	printf(fmt, ##args); \
	fflush(stdout); \
	} \
	} while (0)



	struct ipmi {
	const char *i_id;
	const char *i_ipmitool;
	char *i_host;
	char *i_user;
	char *i_authtype;
	char *i_password;
	int i_rdfd;
	int i_wrfd;
	pid_t i_pid;
	int i_config;
	int i_verbose;
	int i_lanplus;
	int i_timeout;
	int i_power_wait;
	int i_cipher;
	};


	/*
	Supported installation paths
	*/
	const char *ipmitool_paths[] = {
	"/usr/local/bull/NSMasterHW/bin/ipmitool",
	"/usr/bin/ipmitool",
	"/usr/sbin/ipmitool",
	"/bin/ipmitool",
	"/sbin/ipmitool",
	"/usr/local/bin/ipmitool",
	"/usr/local/sbin/ipmitool",
	NULL
	};


	#define ECIPHER 2048
	#define ESTATE (8192*2)
	static struct Etoken power_on_complete[] = {
	{"Password:", EPERM, 0},
	{"Unable to establish LAN", EAGAIN, 0}, /* Retry */
	{"IPMI mutex", EFAULT, 0}, /* Death */
	{"Unsupported cipher suite ID", ECIPHER,0},
	{"read_rakp2_message: no support for", ECIPHER,0},
	{"Up/On", 0, 0},
	{NULL, 0, 0}
	};

	static struct Etoken power_off_complete[] = {
	{"Password:", EPERM, 0},
	{"Unable to establish LAN", EAGAIN, 0}, /* Retry */
	{"IPMI mutex", EFAULT, 0}, /* Death */
	{"Unsupported cipher suite ID", ECIPHER,0},
	{"read_rakp2_message: no support for", ECIPHER,0},
	{"Down/Off", 0, 0},
	{NULL, 0, 0}
	};

	/** Powercycle operation */
	static struct Etoken power_cycle_complete[] = {
	{"Password:", EPERM, 0},
	{"Unable to establish LAN", EAGAIN, 0}, /* Retry */
	{"IPMI mutex", EFAULT, 0}, /* Death */
	{"Unsupported cipher suite ID", ECIPHER,0},
	{"read_rakp2_message: no support for", ECIPHER,0},
	{"Command not supported in present state", ESTATE, 0},
	{": Cycle", 0, 0},
	{NULL, 0, 0}
	};

	#define STATE_OFF 4096
	#define STATE_ON 8192
	static struct Etoken power_status[] = {
	{"Password:", EPERM, 0},
	{"Unable to establish LAN", EAGAIN, 0}, /* Retry */
	{"IPMI mutex", EFAULT, 0}, /* Death */
	{"Unsupported cipher suite ID", ECIPHER,0},
	{"read_rakp2_message: no support for", ECIPHER,0},
	{"Chassis Power is off", STATE_OFF, 0},
	{"Chassis Power is on", STATE_ON, 0},
	{NULL, 0, 0}
	};

	/* Structure describing one xml metadata value*/
	struct xml_parameter_s {
	const char *name;
	const char *getopt;
	const int required;
	const char *content_type;
	const char *default_value;
	const char *description;
	};

	/* Array of xml metadatas*/
	struct xml_parameter_s xml_parameters[]={
	{"auth","-A",0,"string",NULL,"IPMI Lan Auth type (md5, password, or none)"},
	{"ipaddr","-a",1,"string",NULL,"IPMI Lan IP to talk to"},
	{"passwd","-p",0,"string",NULL,"Password (if required) to control power on IPMI device"},
	{"passwd_script","-S",0,"string",NULL,"Script to retrieve password (if required)"},
	{"lanplus","-P",0,"boolean",NULL,"Use Lanplus"},
	{"login","-l",0,"string",NULL,"Username/Login (if required) to control power on IPMI device"},
	{"action","-o",0,"string","reboot","Operation to perform. Valid operations: on, off, reboot, status, list, diag, monitor or metadata"},
	{"timeout","-t",0,"string",NULL,"Timeout (sec) for IPMI operation"},
	{"cipher","-C",0,"string",NULL,"Ciphersuite to use (same as ipmitool -C parameter)"},
	{"method","-M",0,"string",DEFAULT_METHOD,"Method to fence (onoff or cycle)"},
	{"power_wait","-T",0,"string","2","Wait X seconds after on/off operation"},
	{"delay","-f",0,"string",NULL,"Wait X seconds before fencing is started"},
	{"verbose","-v",0,"boolean",NULL,"Verbose mode"}};

	/*
	Search for ipmitool
	*/
	static const char *
	ipmitool_path(void)
	{
	char *p;
	int x = 0;
	struct stat sb;

	for (x = 0; ipmitool_paths[x]; x++) {
	p = (char *)ipmitool_paths[x];
	if (stat(p, &sb) != 0)
	continue;

	if (!S_ISREG(sb.st_mode))
	continue;

	/* executable? */
	if ((sb.st_mode & S_IXUSR) == 0)
	continue;

	return (const char *)p;
	}

	return NULL;
	}


	/** Prepare string for use in sh style environment. This function take source
	string and prepend/append quote (') to start/end of source string to dest
	string. Any occurence of quote in source string is replaced by '\'' sequence.
	Dest string must be preallocated.

	@param dest Destination string
	@param source Source string
	@param max_len Maximum length of data written to dest string (including end 0)
	@return Pointer to start of destination string.
	*/
	static char str_prepare_for_sh(char dest,char *source,int max_len) {
	char *dest_p=dest;
	char *max_dest=dest+max_len;

	if (dest_p+1>=max_dest) {*dest_p=0;return dest;}
	*dest_p++='\'';

	while (*source) {
	if (*source=='\'') {
	if (dest_p+4>=max_dest) {*dest_p=0;return dest;}

	memcpy(dest_p,"'\\''",4);dest_p+=4;
	} else {
	if (dest_p+1>=max_dest) {*dest_p=0;return dest;}

	dest_p++=source;
	}
	source++;
	}

	if (dest_p+2>=max_dest) {*dest_p=0;return dest;}

	dest_p++='\'';dest_p=0;

	return dest;
	}

	static int
	build_cmd(char command, size_t cmdlen, struct ipmi ipmi, int op)
	{
	char cmd[2048];
	char arg[2048];
	char tmp[2048];
	int x;

	/* Store path */
	if (ipmi->i_lanplus) {
	snprintf(cmd, sizeof(cmd), "%s -I lanplus -H %s",
	ipmi->i_ipmitool,
	str_prepare_for_sh(tmp,ipmi->i_host,sizeof(tmp)));
	} else {
	snprintf(cmd, sizeof(cmd), "%s -I lan -H %s", ipmi->i_ipmitool,
	str_prepare_for_sh(tmp,ipmi->i_host,sizeof(tmp)));
	}

	if (ipmi->i_user) {
	snprintf(arg, sizeof(arg), " -U %s", str_prepare_for_sh(tmp,ipmi->i_user,sizeof(tmp)));
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	}

	if (ipmi->i_authtype) {
	snprintf(arg, sizeof(arg), " -A %s", str_prepare_for_sh(tmp,ipmi->i_authtype,sizeof(tmp)));
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	}

	if (ipmi->i_cipher>=0) {
	snprintf(arg, sizeof(arg), " -C %d", ipmi->i_cipher);
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	}

	if (ipmi->i_password) {
	snprintf(arg, sizeof(arg), " -P %s", str_prepare_for_sh(tmp,ipmi->i_password,sizeof(tmp)));
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	} else {
	snprintf(arg, sizeof(arg), " -P ''");
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	}

	/* Tack on the -v flags for ipmitool; in most cases, i_verbose
	will be 0 */
	for (x = 0; x < ipmi->i_verbose; x++) {
	snprintf(arg, sizeof(arg), " -v");
	strncat(cmd, arg, sizeof(cmd) - strlen(arg));
	}

	switch(op) {
	case ST_POWERON:
	snprintf(arg, sizeof(arg),
	"%s chassis power on", cmd);
	break;
	case ST_POWEROFF:
	snprintf(arg, sizeof(arg),
	"%s chassis power off", cmd);
	break;
	case ST_STATUS:
	snprintf(arg, sizeof(arg),
	"%s chassis power status", cmd);
	break;
	case ST_CYCLE:
	snprintf(arg, sizeof(arg),
	"%s chassis power cycle", cmd);
	break;
	case ST_DIAG:
	snprintf(arg, sizeof(arg),
	"%s chassis power diag", cmd);
	break;
	}

	strncpy(command, arg, cmdlen);
	return 0;
	}


	static int
	ipmi_spawn(struct ipmi ipmi, const char cmd)
	{
	dbg_printf(ipmi, 1, "Spawning: '%s'...\n", cmd);
	if (!ipmi) {
	errno = EINVAL;
	return -1;
	}

	if (ipmi->i_pid != -1) {
	dbg_printf(ipmi, 1, "Can't spawn: PID %d running\n",
	(int)ipmi->i_pid);
	errno = EINPROGRESS;
	return -1;
	}

	if ((ipmi->i_pid = StartProcess(cmd, &ipmi->i_rdfd,
	&ipmi->i_wrfd,
	EXP_STDERR\|EXP_NOCTTY)) >= 0) {
	dbg_printf(ipmi, 2, "Spawned: '%s' - PID %d\n", cmd,
	(int)ipmi->i_pid);
	return 0;
	}
	return -1;
	}


	static int
	ipmi_reap(struct ipmi *ipmi)
	{
	if (ipmi->i_pid >= 0) {
	dbg_printf(ipmi, 2, "Reaping pid %d\n", ipmi->i_pid);
	kill(ipmi->i_pid, 9);
	waitpid(ipmi->i_pid, NULL, 0);
	}
	ipmi->i_pid = -1;
	if (ipmi->i_rdfd >= 0) {
	close(ipmi->i_rdfd);
	ipmi->i_rdfd = -1;
	}
	if (ipmi->i_wrfd >= 0) {
	close(ipmi->i_wrfd);
	ipmi->i_wrfd = -1;
	}
	return 0;
	}


	static int
	ipmi_expect(struct ipmi ipmi, struct Etoken toklist, int timeout)
	{
	int ret;
	char buf[32768]; /* XX hope this is enough */

	dbg_printf(ipmi, 3, "Looking for: \n");
	for (ret = 0; toklist[ret].string; ret++) {
	dbg_printf(ipmi, 3, " '%s', val = %d\n",
	toklist[ret].string,
	toklist[ret].toktype);
	}

	ret = ExpectToken(ipmi->i_rdfd, toklist, timeout, buf, sizeof(buf));
	dbg_printf(ipmi, 3, "ExpectToken returned %d\n", ret);
	if (ret == -1) {
	ret = errno;
	dbg_printf(ipmi, 3, "ExpectToken failed. Info returned:\n");
	dbg_printf(ipmi, 3, ">>>>>\n%s\n<<<<<\nError = %d (%s)\n",
	buf,
	ret,
	strerror(ret));
	}

	return ret;
	}


	static int
	ipmi_op(struct ipmi ipmi, int op, struct Etoken toklist)
	{
	char cmd[2048];
	int ret;

	build_cmd(cmd, sizeof(cmd), ipmi, op);

	if (ipmi_spawn(ipmi, cmd) != 0)
	return -1;
	ret = ipmi_expect(ipmi, toklist, ipmi->i_timeout);
	ipmi_reap(ipmi);

	if (ret == EFAULT) {
	log(LOG_CRIT, "ipmilan: ipmitool failed to create "
	"mutex; unable to complete operation\n");
	return ret;
	}

	if (ret == ECIPHER) {
	log(LOG_CRIT, "ipmilan: ipmitool failed to operate "
	"with ciphersuite %d; unable to complete operation\n",ipmi->i_cipher);
	return ret;
	}

	if (ret == ESTATE) {
	log(LOG_CRIT, "ipmilan: ipmitool failed to complete "
	"command in current state\n");
	return ret;
	}

	if (ret == ETIMEDOUT) {
	/!!! Still couldn't get through?! /
	log(LOG_WARNING,
	"ipmilan: Failed to connect after %d seconds\n",ipmi->i_timeout);
	}

	return ret;
	}


	static int
	ipmi_off(struct ipmi *ipmi)
	{
	int ret, retries = 7;

	ret = ipmi_op(ipmi, ST_STATUS, power_status);
	switch(ret) {
	case STATE_ON:
	break;
	case STATE_OFF:
	return 0;
	default:
	return ret;
	}

	while (retries>=0) {
	ret = ipmi_op(ipmi, ST_POWEROFF, power_off_complete);
	if (ret != 0)
	return ret;

	sleep(2);
	--retries;
	ret = ipmi_op(ipmi, ST_STATUS, power_status);

	switch(ret) {
	case STATE_OFF:
	return 0;
	case EFAULT:
	/* We're done. */
	retries = 0;
	break;
	case STATE_ON:
	default:
	continue;
	}
	}
	log(LOG_WARNING, "ipmilan: Power still on\n");

	return ret;
	}


	static int
	ipmi_on(struct ipmi *ipmi)
	{
	int ret, retries = 7;

	ret = ipmi_op(ipmi, ST_STATUS, power_status);
	switch(ret) {
	case STATE_ON:
	return 0;
	case STATE_OFF:
	break;
	default:
	return ret;
	}

	while (retries>=0) {
	ret = ipmi_op(ipmi, ST_POWERON, power_on_complete);
	if (ret != 0)
	return ret;

	sleep(ipmi->i_power_wait);
	--retries;
	ret = ipmi_op(ipmi, ST_STATUS, power_status);

	switch(ret) {
	case STATE_ON:
	return 0;
	case EFAULT:
	/* We're done. */
	retries = 0;
	break;
	case STATE_OFF:
	default:
	continue;
	}
	}
	log(LOG_WARNING, "ipmilan: Power still off\n");

	return ret;
	}

	static int
	ipmi_cycle(struct ipmi *ipmi)
	{
	int ret;

	ret = ipmi_op(ipmi, ST_CYCLE, power_cycle_complete);

	return ret;
	}

	static int
	ipmi_diag(struct ipmi *ipmi)
	{
	int ret;

	ret = ipmi_op(ipmi, ST_DIAG, power_off_complete);

	return ret;
	}


	/**
	Squash all our private data
	*/
	static void
	ipmi_destroy(struct ipmi *i)
	{
	ipmi_reap(i);
	if (i->i_user) {
	free(i->i_user);
	i->i_user = NULL;
	}
	if (i->i_password) {
	free(i->i_password);
	i->i_password= NULL;
	}
	if (i->i_host) {
	free(i->i_host);
	i->i_host = NULL;
	}
	i->i_config = 0;
	i->i_id = NOTIPMI;
	}


	/**
	Multipurpose initializer. Used to either create a new, blank ipmi,
	or update an existing one, or both.
	*/
	static struct ipmi *
	ipmi_init(struct ipmi i, char host, char *authtype,
	char user, char password, int lanplus, int verbose,int timeout,
	int power_wait,
	int cipher)
	{
	const char *p;

	if (!i \|\| !i->i_ipmitool)
	p = ipmitool_path();
	else
	p = i->i_ipmitool;

	if (!p) {
	log(LOG_WARNING, "ipmilan: ipmitool not found!\n");
	return NULL;
	}

	if (!i)
	i = malloc (sizeof(*i));
	if (!i)
	return NULL;

	if (host && strlen(host)) {
	i->i_host = strdup(host);
	if (!i->i_host) {
	free(i);
	return NULL;
	}
	} else
	i->i_host = NULL;

	if (password && strlen(password)) {
	i->i_password = strdup(password);
	if (!i->i_password) {
	free(i->i_host);
	free(i);
	return NULL;
	}
	} else
	i->i_password = NULL;

	if (authtype && strlen(authtype)) {
	i->i_authtype = strdup(authtype);
	if (!i->i_authtype) {
	free(i->i_host);
	if (i->i_password)
	free(i->i_password);
	free(i);
	return NULL;
	}
	} else
	i->i_authtype = NULL;


	if (user && strlen(user)) {
	i->i_user= strdup(user);
	if (!i->i_user) {
	free(i->i_host);
	if (i->i_authtype)
	free(i->i_authtype);
	if (i->i_password)
	free(i->i_password);
	free(i);
	return NULL;
	}
	} else
	i->i_user = NULL;
	i->i_ipmitool = p;
	i->i_rdfd = -1;
	i->i_wrfd = -1;
	i->i_pid = -1;
	i->i_id = IPMIID;
	i->i_verbose = verbose;
	i->i_lanplus = lanplus;
	i->i_timeout = timeout;
	i->i_power_wait = power_wait;
	i->i_cipher = cipher;

	return i;
	}


	/**
	Remove leading and trailing whitespace from a line of text.
	*/
	static int
	cleanup(char *line, size_t linelen)
	{
	char *p;
	size_t x;

	/* Remove leading whitespace. */
	p = line;
	for (x = 0; x <= linelen; x++) {
	switch (line[x]) {
	case '\t':
	case ' ':
	break;
	case '\n':
	case '\r':
	return -1;
	default:
	goto eol;
	}
	}
	eol:
	/* Move the remainder down by as many whitespace chars as we
	chewed up */
	if (x)
	memmove(p, &line[x], linelen-x);

	/* Remove trailing whitespace. */
	for (x=0; x <= linelen; x++) {
	switch(line[x]) {
	case '\t':
	case ' ':
	case '\r':
	case '\n':
	line[x] = 0;
	case 0:
	/* End of line */
	return 0;
	}
	}

	return -1;
	}


	/**
	Parse args from stdin. Dev + devlen + op + oplen must be valid.
	*/
	static int
	get_options_stdin(char *ip, size_t iplen,
	char *authtype, size_t atlen,
	char *passwd, size_t pwlen,
	char *pwd_script, size_t pwd_script_len,
	char *user, size_t userlen,
	char *op, size_t oplen,
	int lanplus, int verbose,int *timeout,
	int *power_wait,
	int cipher, char method, int methodlen,
	char *delay, size_t delaylen)
	{
	char in[256];
	int line = 0;
	char name, val;

	op[0] = 0;
	method[0] = 0;

	while (fgets(in, sizeof(in), stdin)) {
	++line;

	if (in[0] == '#')
	continue;

	if (cleanup(in, sizeof(in)) == -1)
	continue;

	name = in;
	if ((val = strchr(in, '='))) {
	*val = 0;
	++val;
	}

	if (!strcasecmp(name, "agent")) {
	/* Used by fenced? */
	} else if (!strcasecmp(name, "verbose")) {
	*verbose = 1;
	} else if (!strcasecmp(name, "ipaddr")) {
	/* IP address to use. E.g. 10.1.1.2 */
	if (val)
	strncpy(ip, val, iplen);
	else
	ip[0] = 0;

	} else if (!strcasecmp(name, "auth")) {
	/* Authtype to use */
	if (val)
	strncpy(authtype, val, atlen);
	else
	authtype[0] = 0;

	} else if (!strcasecmp(name, "passwd")) {
	/* password */
	if (val)
	strncpy(passwd, val, pwlen);
	else
	passwd[0] = 0;

	} else if (!strcasecmp(name, "passwd_script")) {
	if (val) {
	strncpy(pwd_script, val, pwd_script_len);
	pwd_script[pwd_script_len - 1] = '\0';
	} else
	pwd_script[0] = '\0';
	} else if (!strcasecmp(name, "user") \|\| !strcasecmp(name, "login")) {
	/* username */
	if (val)
	strncpy(user, val, userlen);
	else
	user[0] = 0;
	} else if (!strcasecmp(name, "lanplus")) {
	(*lanplus) = 1;
	} else if (!strcasecmp(name,"timeout")) {
	if ((sscanf(val,"%d",timeout)!=1) \|\| *timeout<1) {
	*timeout=DEFAULT_TIMEOUT;
	}
	} else if (!strcasecmp(name,"power_wait")) {
	if ((sscanf(val,"%d",power_wait)!=1) \|\| *power_wait<1) {
	*power_wait=DEFAULT_POWER_WAIT;
	}
	} else if (!strcasecmp(name,"cipher")) {
	if ((sscanf(val,"%d",cipher)!=1) \|\| *cipher<0) {
	*cipher=-1;
	}
	} else if (!strcasecmp(name,"method")) {
	strncpy (method, val, methodlen);
	} else if (!strcasecmp(name, "option") \|\|
	!strcasecmp(name, "operation") \|\|
	!strcasecmp(name, "action")) {
	if (val)
	strncpy(op, val, oplen);
	else
	op[0] = 0;
	} else if (!strcasecmp(name,"delay")) {
	if (val)
	strncpy(delay, val, delaylen);
	else
	delay[0] = 0;
	}
	}

	return 0;
	}


	/**
	Print a message to stderr and call exit(1).
	*/
	static void
	fail_exit(const char *msg)
	{
	fprintf(stderr, "failed: %s\n", msg);
	exit(1);
	}

	static void
	usage_exit(char *pname)
	{
	printf("usage: %s <options>\n", pname);
	printf(" -A <authtype> IPMI Lan Auth type (md5, password, or none)\n");
	printf(" -a <ipaddr> IPMI Lan IP to talk to\n");
	printf(" -i <ipaddr> IPMI Lan IP to talk to (deprecated, use -a)\n");
	printf(" -p <password> Password (if required) to control power on\n"
	" IPMI device\n");
	printf(" -P Use Lanplus\n");
	printf(" -S <path> Script to retrieve password (if required)\n");
	printf(" -l <login> Username/Login (if required) to control power\n"
	" on IPMI device\n");
	printf(" -o <op> Operation to perform.\n");
	printf(" Valid operations: on, off, reboot, status,\n");
	printf(" diag, list or monitor\n");
	printf(" -t <timeout> Timeout (sec) for IPMI operation (default %d)\n",DEFAULT_TIMEOUT);
	printf(" -T <timeout> Wait X seconds after on/off operation\n");
	printf(" -f <timeout> Wait X seconds before fencing is started\n");
	printf(" -C <cipher> Ciphersuite to use (same as ipmitool -C parameter)\n");
	printf(" -M <method> Method to fence (onoff or cycle (default %s)\n", DEFAULT_METHOD);
	printf(" -V Print version and exit\n");
	printf(" -v Verbose mode\n\n");
	printf("If no options are specified, the following options will be read\n");
	printf("from standard input (one per line):\n\n");
	printf(" auth=<auth> Same as -A\n");
	printf(" ipaddr=<#> Same as -a\n");
	printf(" passwd=<pass> Same as -p\n");
	printf(" passwd_script=<path> Same as -S\n");
	printf(" lanplus Same as -P\n");
	printf(" login=<login> Same as -u\n");
	printf(" option=<op> Same as -o\n");
	printf(" operation=<op> Same as -o\n");
	printf(" action=<op> Same as -o\n");
	printf(" delay=<seconds> Same as -f\n");
	printf(" timeout=<timeout> Same as -t\n");
	printf(" power_wait=<time> Same as -T\n");
	printf(" cipher=<cipher> Same as -C\n");
	printf(" method=<method> Same as -M\n");
	printf(" verbose Same as -v\n\n");
	exit(1);
	}


	/** Print XML metadata of fence agent*/
	static void print_xml_metadata(char *pname) {
	int i;

	printf("%s\n","<?xml version=\"1.0\" ?>");
	printf("%s%s%s\n","<resource-agent name=\"",pname,"\" shortdesc=\"Fence agent for IPMI over LAN\">");
	printf("<longdesc>\n");
	printf("fence_ipmilan is an I/O Fencing agent which can be used with "
	"machines controlled by IPMI. This agent calls support software "
	"using ipmitool (http://ipmitool.sf.net/).\n\n"
	"To use fence_ipmilan with HP iLO 3 you have to enable lanplus "
	"option (lanplus / -P) and increase wait after operation to "
	"4 seconds (power_wait=4 / -T 4)");
	printf("</longdesc>\n");
	printf("%s\n","<parameters>");

	for (i=0;i<(sizeof(xml_parameters)/sizeof(struct xml_parameter_s));i++) {
	printf("\t<parameter name=\"%s\" unique=\"1\">\n",xml_parameters[i].name);

	printf("\t\t<getopt mixed=\"%s\" />\n",xml_parameters[i].getopt);
	if (xml_parameters[i].default_value == NULL) {
	printf("\t\t<content type=\"%s\" />\n",xml_parameters[i].content_type);
	} else {
	printf("\t\t<content type=\"%s\" default=\"%s\"/>\n", \
	xml_parameters[i].content_type, \
	xml_parameters[i].default_value );
	}

	printf("\t\t<shortdesc lang=\"en\">");
	printf("%s",xml_parameters[i].description);
	printf("</shortdesc>\n");
	printf("\t</parameter>\n");
	}
	printf("%s\n","</parameters>");
	printf("%s\n","<actions>");
	printf("\t<action name=\"%s\" />\n", "on");
	printf("\t<action name=\"%s\" />\n", "off");
	printf("\t<action name=\"%s\" />\n", "reboot");
	printf("\t<action name=\"%s\" />\n", "status");
	printf("\t<action name=\"%s\" />\n", "diag");
	printf("\t<action name=\"%s\" />\n", "list");
	printf("\t<action name=\"%s\" />\n", "monitor");
	printf("\t<action name=\"%s\" />\n", "metadata");
	printf("%s\n","</actions>");
	printf("%s\n","</resource-agent>");
	}

	int
	main(int argc, char **argv)
	{
	extern char *optarg;
	int opt, ret = -1;
	char authtype[64];
	char ip[64];
	char passwd[64];
	char user[64];
	char op[64];
	char method[64];
	char delay[64];
	char pwd_script[PATH_MAX] = { 0, };
	int lanplus=0;
	int verbose=0;
	char *pname = basename(argv[0]);
	struct ipmi *i;
	int timeout=DEFAULT_TIMEOUT;
	int down_sleep=DEFAULT_POWER_WAIT;
	int cipher=-1;
	int print_final_status=1;
	int translated_ret = -1;

	memset(ip, 0, sizeof(ip));
	memset(authtype, 0, sizeof(authtype));
	memset(passwd, 0, sizeof(passwd));
	memset(user, 0, sizeof(user));
	memset(op, 0, sizeof(op));
	memset(method, 0, sizeof(method));
	memset(delay, 0, sizeof(delay));

	if (argc > 1) {
	/*
	Parse command line options if any were specified
	*/
	while ((opt = getopt(argc, argv, "A:a:i:l:p:S:Po:vV?hHt:T:C:M:f:")) != EOF) {
	switch(opt) {
	case 'A':
	/* Auth type */
	strncpy(authtype, optarg, sizeof(authtype));
	break;
	case 'a':
	case 'i':
	/* IP address */
	strncpy(ip, optarg, sizeof(ip));
	break;
	case 'l':
	/* user / login */
	strncpy(user, optarg, sizeof(user));
	break;
	case 'p':
	/* password */
	strncpy(passwd, optarg, sizeof(passwd));
	break;
	case 'P':
	lanplus = 1;
	break;
	case 'S':
	strncpy(pwd_script, optarg, sizeof(pwd_script));
	pwd_script[sizeof(pwd_script) - 1] = '\0';
	break;
	case 'o':
	/* Operation */
	strncpy(op, optarg, sizeof(op));
	break;
	case 'f':
	/* Delay */
	strncpy(delay, optarg, sizeof(delay));
	break;
	case 't':
	/* Timeout */
	if ((sscanf(optarg,"%d",&timeout)!=1) \|\| timeout<1) {
	fail_exit("Timeout option expects positive number parameter");
	}
	break;
	case 'T':
	/* Shutdown Sleep Time */
	if ((sscanf(optarg,"%d",&down_sleep)!=1) \|\| down_sleep<1) {
	fail_exit("Shutdown time option expects positive number parameter");
	}
	break;
	case 'C':
	/* Ciphersuite */
	if ((sscanf(optarg,"%d",&cipher)!=1) \|\| cipher<0) {
	fail_exit("Ciphersuite option expects positive number parameter");
	}
	break;
	case 'M':
	/* Reboot method */
	strncpy(method, optarg, sizeof(method));
	break;
	case 'v':
	verbose++;
	break;
	case 'V':
	printf("%s %s (built %s %s)\n", pname,
	VERSION,
	__DATE__, __TIME__);
	printf("%s\n",
	REDHAT_COPYRIGHT);
	return 0;
	default:
	usage_exit(pname);
	}
	}
	} else {
	/*
	No command line args? Get stuff from stdin
	*/
	if (get_options_stdin(ip, sizeof(ip),
	authtype, sizeof(authtype),
	passwd, sizeof(passwd),
	pwd_script, sizeof(pwd_script),
	user, sizeof(user),
	op, sizeof(op), &lanplus, &verbose,&timeout,
	&down_sleep,
	&cipher, method, sizeof(method),
	delay, sizeof(delay)) != 0)
	return 1;
	}

	if (pwd_script[0] != '\0') {
	char pwd_buf[1024];
	FILE *fp;
	fp = popen(pwd_script, "r");
	if (fp != NULL) {
	ssize_t len = fread(pwd_buf, 1, sizeof(pwd_buf), fp);
	if (len > 0) {
	char *p;
	p = strchr(pwd_buf, '\n');
	if (p != NULL)
	*p = '\0';
	p = strchr(pwd_buf, '\r');
	if (p != NULL)
	*p = '\0';
	strncpy(passwd, pwd_buf, sizeof(passwd));
	passwd[sizeof(passwd) - 1] = '\0';
	}
	pclose(fp);
	}
	}

	if (!strcasecmp(op, "metadata")) {
	print_xml_metadata(pname);
	translated_ret = ERR_OK;
	ret=0;
	print_final_status=0;
	goto metaout;
	}

	/*
	Validate the operating parameters
	*/
	if (strlen(ip) == 0)
	fail_exit("no IP address specified");

	if (!strlen(op))
	snprintf(op,sizeof(op), "reboot");

	if (!strlen(method))
	snprintf(method, sizeof(method), "onoff");

	if (strcasecmp(op, "off") && strcasecmp(op, "on") &&
	strcasecmp(op, "status") && strcasecmp(op, "reboot") &&
	strcasecmp(op, "monitor") && strcasecmp(op, "list") &&
	strcasecmp(op, "metadata") && strcasecmp(op, "diag")) {
	fail_exit("operation must be 'on', 'off', 'status', "
	"'reboot', 'diag', 'list', 'monitor' or 'metadata'");
	}

	if (strlen(authtype) &&
	strcasecmp(authtype, "md5") &&
	strcasecmp(authtype, "password") &&
	strcasecmp(authtype, "none")) {
	fail_exit("authtype, if included, must be 'md5', 'password',"
	" 'none'.");
	}

	if (strcasecmp(method, "onoff") &&
	strcasecmp(method, "cycle")) {
	fail_exit("method, if included, muse be 'onoff', 'cycle'.");
	}

	if (!strcasecmp(method, "cycle") &&
	(!strcasecmp(op, "on") \|\| !strcasecmp(op, "off"))) {
	fail_exit("cycle method supports only 'reboot' operation (not 'on' or 'off').");
	}

	/* Delay fencing if requested */
	if (delay) {
	if (!strcasecmp(op, "reboot") \|\| !strcasecmp(op, "off")) {
	sleep(atoi(delay));
	}
	}

	/* Ok, set up the IPMI struct */
	i = ipmi_init(NULL, ip, authtype, user, passwd, lanplus, verbose, timeout, down_sleep, cipher);
	if (!i)
	fail_exit("Failed to initialize\n");

	/*
	Perform the requested operation
	*/
	if (!strcasecmp(op, "reboot")) {
	printf("Rebooting machine @ IPMI:%s...", ip);
	fflush(stdout);
	if (!strcasecmp(method, "cycle")) {
	ret = ipmi_op(i, ST_STATUS, power_status);

	if (ret == STATE_OFF) {
	/* State is off -> use onoff method because cycle is not able to turn on*/
	snprintf(method, sizeof(method), "onoff");
	}
	}

	if (!strcasecmp(method, "cycle")) {
	ret = ipmi_cycle(i);
	} else {
	/* Original onoff method */
	ret = ipmi_off(i);
	translated_ret = (ret==0?ERR_OFF_SUCCESSFUL:ERR_OFF_FAIL);
	if (ret != 0) {
	goto out;
	}
	ret = ipmi_on(i);
	}
	} else if (!strcasecmp(op, "on")) {
	printf("Powering on machine @ IPMI:%s...", ip);
	fflush(stdout);
	ret = ipmi_on(i);
	translated_ret = (ret==0?ERR_ON_SUCCESSFUL:ERR_ON_FAIL);
	} else if (!strcasecmp(op, "off")) {
	printf("Powering off machine @ IPMI:%s...", ip);
	fflush(stdout);
	ret = ipmi_off(i);
	translated_ret = (ret==0?ERR_ON_SUCCESSFUL:ERR_ON_FAIL);
	} else if (!strcasecmp(op, "status") \|\| !strcasecmp(op, "monitor")) {
	printf("Getting status of IPMI:%s...",ip);
	fflush(stdout);
	ret = ipmi_op(i, ST_STATUS, power_status);
	switch(ret) {
	case STATE_ON:
	if (!strcasecmp(op, "status"))
	printf("Chassis power = On\n");
	translated_ret = ERR_STATUS_ON;
	ret = 0;
	break;
	case STATE_OFF:
	if (!strcasecmp(op, "status"))
	printf("Chassis power = Off\n");
	translated_ret = ERR_STATUS_OFF;
	ret = 0;
	break;
	default:
	if (!strcasecmp(op, "status"))
	printf("Chassis power = Unknown\n");
	translated_ret = ERR_STATUS_FAIL;
	ret = 1;
	break;
	}
	} else if (!strcasecmp(op, "list")) {
	printf("%s\n","N/A");
	ret=0;
	translated_ret = ERR_OK;
	print_final_status=0;
	} else if (!strcasecmp(op, "diag")) {
	printf("Pulsing diagnostic interrupt to machine @ IPMI:%s...", ip);
	fflush(stdout);
	ret = ipmi_diag(i);
	translated_ret = (ret==0?ERR_ON_SUCCESSFUL:ERR_ON_FAIL);
	ret = 0;
	}


	out:
	ipmi_destroy(i);
	free(i);

	metaout:
	if (print_final_status) {
	if (ret == 0)
	printf("Done\n");
	else
	printf("Failed\n");
	}

	if (!strcasecmp(op, "monitor"))
	translated_ret = ret;

	if (!strcasecmp(op, "diaf")) {
	/** .. but when a system receive the DIAG signal , it
	** switches to a kdump kernel, but the machine is always
	** "on" during the dump phase. It only become temporarily
	** "off" at the end of the dump just before rebooting.
	**/
	translated_ret = 0;
	}

	return translated_ret;
	}

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