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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #include <unistd.h>
     27 #include <sys/types.h>
     28 #include <sys/socket.h>
     29 #include <sys/sockio.h>
     30 #include <netinet/in.h>
     31 #include <arpa/inet.h>
     32 #include <net/if.h>
     33 #include <stdio.h>
     34 #include <stdlib.h>
     35 #include <strings.h>
     36 #include <ctype.h>
     37 #include <errno.h>
     38 #include <libintl.h>
     39 #include <locale.h>
     40 #include <libdevinfo.h>
     41 
     42 #define	DATADM_OP_VIEW		0x0000
     43 #define	DATADM_OP_UPDATE	0x0001
     44 #define	DATADM_OP_ADD		0x0002
     45 #define	DATADM_OP_REMOVE	0x0003
     46 #define	DATADM_NUM_OPS		0x0004
     47 #define	DATADM_DAT_CONF		"/etc/dat/dat.conf"
     48 #define	DATADM_LINESZ		1024
     49 #define	DATADM_NUM_SP_TOKENS	7
     50 #define	DATADM_NUM_DAT_TOKENS	8
     51 #define	DATADM_IA_NAME		"ibd"
     52 #define	DATADM_DRV_NAME		"driver_name"
     53 #define	DATADM_MAX_TOKENS	16
     54 
     55 /*
     56  * generic entry
     57  * placed at the top of all entry types
     58  */
     59 typedef struct datadm_entry {
     60 	struct datadm_entry	*de_next;
     61 } datadm_entry_t;
     62 
     63 /*
     64  * list structure
     65  * can be manipulated using datadm_walk_list or
     66  * datadm_enqueue_entry
     67  */
     68 typedef struct datadm_list {
     69 	datadm_entry_t		*dl_head;
     70 	datadm_entry_t		*dl_tail;
     71 	uint_t			dl_count;
     72 } datadm_list_t;
     73 
     74 /*
     75  * internal representation of the version string in
     76  * dat.conf or service_provider.conf. the format is
     77  * <dv_name><dv_major>.<dv_minor>
     78  */
     79 typedef struct datadm_version {
     80 	char	*dv_name;
     81 	uint_t	dv_major;
     82 	uint_t	dv_minor;
     83 } datadm_version_t;
     84 
     85 /*
     86  * each sp_entry corresponds to an entry in dat.conf or
     87  * service_provider.conf. an sp_entry is processed by the
     88  * function datadm_process_sp_entry.
     89  */
     90 typedef struct datadm_sp_entry {
     91 	datadm_entry_t		spe_header;
     92 	char			*spe_devname;
     93 	datadm_version_t	spe_api_version;
     94 	int			spe_threadsafe;
     95 	int			spe_default;
     96 	char			*spe_libpath;
     97 	datadm_version_t	spe_sp_version;
     98 	char			*spe_sp_data;
     99 	int			spe_invalid;
    100 } datadm_sp_entry_t;
    101 
    102 /*
    103  * an hca_entry is created whenever a new hca device is
    104  * encountered during sp_entry processing. this structure
    105  * contains two lists. the sp_list holds sp entries that
    106  * are added when sp entry processing occurs. duplicate
    107  * sp entries are not added to this list. the ia_list may
    108  * be built statically using the information in dat.conf or
    109  * dynamically using libdevinfo. similar to the sp_list,
    110  * the ia_list contains only unique entries.
    111  */
    112 typedef struct datadm_hca_entry {
    113 	datadm_entry_t		he_header;
    114 	char			*he_name;
    115 	datadm_list_t		he_sp_list;
    116 	datadm_list_t		he_ia_list;
    117 } datadm_hca_entry_t;
    118 
    119 /*
    120  * an ia_entry is created when a new ia name is encountered
    121  * during sp_entry processing or when a new ia name is
    122  * discovered by datadm_fill_ia_list. ia_entry holds the ia
    123  * device's instance number.
    124  */
    125 typedef struct datadm_ia_entry {
    126 	datadm_entry_t		iae_header;
    127 	int			iae_devnum;
    128 } datadm_ia_entry_t;
    129 
    130 /*
    131  * a comment entry represents one of the comment lines at the
    132  * top of dat.conf. a list of these lines are saved during the
    133  * parsing of dat.conf. these lines are written back to dat.conf
    134  * when dat.conf gets regenerated.
    135  */
    136 typedef struct datadm_cmnt_entry {
    137 	datadm_entry_t		cmnt_header;
    138 	char			*cmnt_line;
    139 } datadm_cmnt_entry_t;
    140 
    141 /*
    142  * 2nd argument to datadm_hca_entry_find.
    143  * hf_hca_entry is filled in if an hca_entry with
    144  * a matching he_name is found.
    145  */
    146 typedef struct datadm_hca_find {
    147 	datadm_sp_entry_t	*hf_sp_entry;
    148 	datadm_hca_entry_t	*hf_hca_entry;
    149 } datadm_hca_find_t;
    150 
    151 /*
    152  * 2nd argument to datadm_ia_entry_find.
    153  * if_ia_entry is filled in if an ia_entry with
    154  * a matching ia_devnum is found.
    155  */
    156 typedef struct datadm_ia_find {
    157 	int			if_ia_devnum;
    158 	datadm_ia_entry_t	*if_ia_entry;
    159 } datadm_ia_find_t;
    160 
    161 /*
    162  * this gets passed to datadm_fill_ia_list.
    163  * we do this to avoid regenerating the device
    164  * tree for each hca_entry we process.
    165  */
    166 typedef struct datadm_fill_ia_list {
    167 	di_node_t		ia_root_node;
    168 	int			ia_sock_fd_v4;
    169 	int			ia_sock_fd_v6;
    170 } datadm_fill_ia_list_t;
    171 
    172 /*
    173  * this defines the commandline parameters specified
    174  * by the user.
    175  */
    176 typedef struct datadm_args {
    177 	char			*da_sp_conf;
    178 	char			*da_dat_conf;
    179 	int			da_op_type;
    180 } datadm_args_t;
    181 
    182 static datadm_args_t		datadm_args;
    183 static datadm_list_t		datadm_conf_header;
    184 static char			*datadm_conf_header_default =
    185 	"#\n"
    186 	"# Copyright 2004 Sun Microsystems, Inc.  All rights reserved.\n"
    187 	"# Use is subject to license terms.\n"
    188 	"#\n"
    189 	"# ident \"@(#)dat.conf   1.1     03/08/26 SMI\"\n"
    190 	"#\n"
    191 	"# DAT configuration file.\n"
    192 	"#\n"
    193 	"# This file is updated using the datadm(1) command.\n"
    194 	"# Do not hand edit this file.\n"
    195 	"# See datadm(1) man page for more details.\n"
    196 	"#\n"
    197 	"# The fields in this file are -\n"
    198 	"#\n"
    199 	"# IAname version threadsafe default library-path provider-version \\\n"
    200 	"# instance-data platform-information\n"
    201 	"#\n";
    202 
    203 /*
    204  * common parsing functions.
    205  */
    206 typedef int (*datadm_parse_func_t)(char *, void *);
    207 static int datadm_parse_line(char *, char *[], int *);
    208 static int datadm_parse_generic_str(char *, char **);
    209 static int datadm_parse_nonnull_str(char *, char **);
    210 static int datadm_parse_version(char *, datadm_version_t *);
    211 static int datadm_parse_devname(char *, datadm_sp_entry_t *);
    212 static int datadm_parse_api_version(char *, datadm_sp_entry_t *);
    213 static int datadm_parse_threadsafe(char *, datadm_sp_entry_t *);
    214 static int datadm_parse_default(char *, datadm_sp_entry_t *);
    215 static int datadm_parse_libpath(char *, datadm_sp_entry_t *);
    216 static int datadm_parse_sp_version(char *, datadm_sp_entry_t *);
    217 static int datadm_parse_sp_data(char *, datadm_sp_entry_t *);
    218 static int datadm_parse_ia_name(char *, int *);
    219 
    220 /*
    221  * utility functions
    222  */
    223 static void datadm_enqueue_entry(datadm_list_t *, datadm_entry_t *);
    224 static int datadm_walk_list(datadm_list_t *,
    225     int (*)(datadm_entry_t *, void *), void *);
    226 static int datadm_str_match(char *, char *);
    227 static int datadm_version_match(datadm_version_t *, datadm_version_t *);
    228 static int datadm_sp_entry_match(datadm_sp_entry_t *, datadm_sp_entry_t *);
    229 
    230 /*
    231  * entry allocation/deallocation
    232  */
    233 static datadm_sp_entry_t *datadm_alloc_sp_entry(void);
    234 static datadm_ia_entry_t *datadm_alloc_ia_entry(void);
    235 static datadm_hca_entry_t *datadm_alloc_hca_entry(void);
    236 static datadm_cmnt_entry_t *datadm_alloc_cmnt_entry(void);
    237 static void datadm_free_sp_entry(datadm_sp_entry_t *);
    238 static void datadm_free_ia_entry(datadm_ia_entry_t *);
    239 static void datadm_free_hca_entry(datadm_hca_entry_t *);
    240 static void datadm_free_cmnt_entry(datadm_cmnt_entry_t *);
    241 
    242 
    243 /*
    244  * high level parsing functions
    245  */
    246 static int datadm_parse_sp_conf(datadm_list_t *);
    247 static int datadm_parse_dat_conf(datadm_list_t *);
    248 static int datadm_process_sp_entry(datadm_list_t *, datadm_sp_entry_t *, int);
    249 
    250 /*
    251  * ia devices discovery
    252  */
    253 static int datadm_build_ia_lists(datadm_list_t *);
    254 static int datadm_fill_ia_list(datadm_hca_entry_t *, datadm_fill_ia_list_t *);
    255 
    256 /*
    257  * helper function for OP_REMOVE
    258  */
    259 static void datadm_invalidate_common_sp_entries(datadm_list_t *,
    260     datadm_list_t *);
    261 
    262 /*
    263  * output generation
    264  */
    265 static int datadm_generate_dat_conf(datadm_list_t *);
    266 static int datadm_generate_conf_header(FILE *);
    267 static int datadm_generate_conf_entry(FILE *, datadm_ia_entry_t *,
    268     datadm_sp_entry_t *);
    269 
    270 /*
    271  * datadm operations
    272  */
    273 static int datadm_view(void);
    274 static int datadm_update(void);
    275 static int datadm_add(void);
    276 static int datadm_remove(void);
    277 
    278 /*
    279  * usage
    280  */
    281 static void datadm_usage(void);
    282 
    283 
    284 /*
    285  * parse function tables
    286  */
    287 static datadm_parse_func_t datadm_sp_parse_funcs[DATADM_NUM_SP_TOKENS] = {
    288 	(datadm_parse_func_t)datadm_parse_devname,
    289 	(datadm_parse_func_t)datadm_parse_api_version,
    290 	(datadm_parse_func_t)datadm_parse_threadsafe,
    291 	(datadm_parse_func_t)datadm_parse_default,
    292 	(datadm_parse_func_t)datadm_parse_libpath,
    293 	(datadm_parse_func_t)datadm_parse_sp_version,
    294 	(datadm_parse_func_t)datadm_parse_sp_data
    295 };
    296 
    297 static datadm_parse_func_t datadm_dat_parse_funcs[DATADM_NUM_DAT_TOKENS] = {
    298 	(datadm_parse_func_t)datadm_parse_ia_name,
    299 	(datadm_parse_func_t)datadm_parse_api_version,
    300 	(datadm_parse_func_t)datadm_parse_threadsafe,
    301 	(datadm_parse_func_t)datadm_parse_default,
    302 	(datadm_parse_func_t)datadm_parse_libpath,
    303 	(datadm_parse_func_t)datadm_parse_sp_version,
    304 	(datadm_parse_func_t)datadm_parse_sp_data,
    305 	(datadm_parse_func_t)datadm_parse_devname
    306 };
    307 
    308 /*
    309  * operation table
    310  */
    311 static int (*datadm_ops[DATADM_NUM_OPS])(void) = {
    312 	datadm_view,
    313 	datadm_update,
    314 	datadm_add,
    315 	datadm_remove
    316 };
    317 
    318 static void
    319 datadm_usage(void)
    320 {
    321 	(void) fprintf(stderr, gettext(
    322 	    "usage: datadm -v\n"
    323 	    "              -u\n"
    324 	    "              -a <service_provider.conf>\n"
    325 	    "              -r <service_provider.conf>\n"));
    326 }
    327 
    328 static int
    329 datadm_parse_generic_str(char *str, char **strptr)
    330 {
    331 	int	len;
    332 
    333 	len = strlen(str);
    334 	*strptr = (char *)malloc(len + 1);
    335 	if (*strptr == NULL) {
    336 		return (-1);
    337 	}
    338 	(void) strcpy(*strptr, str);
    339 	return (0);
    340 }
    341 
    342 /*
    343  * this function strips off leading and trailing
    344  * whitespaces and returns an error for null or
    345  * empty strings.
    346  */
    347 static int
    348 datadm_parse_nonnull_str(char *str, char **strptr)
    349 {
    350 	int	len, i;
    351 	char	*start;
    352 
    353 	if (str[0] == '\0') {
    354 		return (-1);
    355 	}
    356 	start = str;
    357 	for (i = 0; str[i] != '\0'; i++) {
    358 		if (!isspace(str[i])) {
    359 			start = &str[i];
    360 			break;
    361 		}
    362 	}
    363 	for (; str[i] != '\0'; i++) {
    364 		if (isspace(str[i])) {
    365 			str[i] = '\0';
    366 		}
    367 	}
    368 	len = strlen(start);
    369 	*strptr = (char *)malloc(len + 1);
    370 	if (*strptr == NULL) {
    371 		return (-1);
    372 	}
    373 	(void) strcpy(*strptr, start);
    374 	return (0);
    375 }
    376 
    377 /*
    378  * parses the api_version and sp_version fields in
    379  * dat.conf and service_provider.conf
    380  */
    381 static int
    382 datadm_parse_version(char *str, datadm_version_t *version)
    383 {
    384 	int	i = 0, len;
    385 	int	major_idx, minor_idx;
    386 
    387 	len = strlen(str);
    388 
    389 	for (i = 0; i < len; i++) {
    390 		if (isdigit(str[i])) break;
    391 	}
    392 	if (i == len) {
    393 		return (-1);
    394 	}
    395 	if (i > 0) {
    396 		version->dv_name = (char *)malloc(i + 1);
    397 		bcopy(str, version->dv_name, i);
    398 		version->dv_name[i] = '\0';
    399 	} else {
    400 		version->dv_name = NULL;
    401 	}
    402 	major_idx = i;
    403 
    404 	for (; i < len; i++) {
    405 		if (!isdigit(str[i])) break;
    406 	}
    407 	if (i == len) {
    408 		return (-1);
    409 	}
    410 	if (str[i] != '.') {
    411 		return (-1);
    412 	}
    413 	minor_idx = ++i;
    414 	if (i == len) {
    415 		return (-1);
    416 	}
    417 	for (; i < len; i++) {
    418 		if (!isdigit(str[i])) break;
    419 	}
    420 	if (i != len) {
    421 		return (-1);
    422 	}
    423 	version->dv_major = atoi(str + major_idx);
    424 	version->dv_minor = atoi(str + minor_idx);
    425 	return (0);
    426 }
    427 
    428 /*
    429  * parses the ia_name field in dat.conf
    430  */
    431 static int
    432 datadm_parse_ia_name(char *str, int *ia_devnum)
    433 {
    434 	int	len;
    435 	int	i, start;
    436 
    437 	len = strlen(DATADM_IA_NAME);
    438 	if (strncmp(str, DATADM_IA_NAME, len) != 0) {
    439 		return (-1);
    440 	}
    441 	start = i = len;
    442 	len = strlen(str);
    443 	if (str[i] == '\0') {
    444 		return (-1);
    445 	}
    446 	for (; i < len; i++) {
    447 		if (!isdigit(str[i])) break;
    448 	}
    449 	if (i != len) {
    450 		return (-1);
    451 	}
    452 	*ia_devnum = atoi(str + start);
    453 	return (0);
    454 }
    455 
    456 /*
    457  * parses the device name, strips leading and trailing spaces.
    458  * the format should be "driver_name=<dev_name>"
    459  */
    460 static int
    461 datadm_parse_devname(char *str, datadm_sp_entry_t *sp_entry)
    462 {
    463 	int	len, dlen, i, j = 0;
    464 	char	*drv_name = DATADM_DRV_NAME;
    465 
    466 	len = strlen(str);
    467 	dlen = strlen(drv_name);
    468 
    469 	/*
    470 	 * strip out leading spaces and try to match
    471 	 * the expected string
    472 	 */
    473 	for (i = 0; i < len; i++) {
    474 		if (isspace(str[i]) && j == 0) {
    475 			continue;
    476 		} else {
    477 			if (str[i] == drv_name[j]) {
    478 				j++;
    479 				if (j == dlen) {
    480 					break;
    481 				} else {
    482 					continue;
    483 				}
    484 			} else {
    485 				break;
    486 			}
    487 		}
    488 	}
    489 
    490 	/*
    491 	 * j must be dlen if the matching string is found
    492 	 */
    493 	if (j != dlen) {
    494 		return (-1);
    495 	}
    496 
    497 	/*
    498 	 * skip past the last char of drv_name
    499 	 */
    500 	i++;
    501 
    502 	/*
    503 	 * strip the spaces before the '='
    504 	 */
    505 	for (; i < len; i++) {
    506 		if (!isspace(str[i])) {
    507 			break;
    508 		}
    509 	}
    510 
    511 	/*
    512 	 * return if the string is too long or if
    513 	 * the '=' isn't found
    514 	 */
    515 	if (i >= len || str[i] != '=') {
    516 		return (-1);
    517 	}
    518 	i++;
    519 	if (i >= len) {
    520 		/*
    521 		 * no string after the equal
    522 		 */
    523 		return (-1);
    524 	}
    525 	return (datadm_parse_nonnull_str(str + i, &sp_entry->spe_devname));
    526 }
    527 
    528 static int
    529 datadm_parse_api_version(char *str, datadm_sp_entry_t *sp_entry)
    530 {
    531 	return (datadm_parse_version(str, &sp_entry->spe_api_version));
    532 }
    533 
    534 static int
    535 datadm_parse_threadsafe(char *str, datadm_sp_entry_t *sp_entry)
    536 {
    537 	int retval = 0;
    538 
    539 	if (strcmp(str, "threadsafe") == 0) {
    540 		sp_entry->spe_threadsafe = 1;
    541 	} else if (strcmp(str, "nonthreadsafe") == 0) {
    542 		sp_entry->spe_threadsafe = 0;
    543 	} else {
    544 		retval = -1;
    545 	}
    546 	return (retval);
    547 }
    548 
    549 static int
    550 datadm_parse_default(char *str, datadm_sp_entry_t *sp_entry)
    551 {
    552 	int retval = 0;
    553 
    554 	if (strcmp(str, "default") == 0) {
    555 		sp_entry->spe_default = 1;
    556 	} else if (strcmp(str, "nondefault") == 0) {
    557 		sp_entry->spe_default = 0;
    558 	} else {
    559 		retval = -1;
    560 	}
    561 	return (retval);
    562 }
    563 
    564 static int
    565 datadm_parse_libpath(char *str, datadm_sp_entry_t *sp_entry)
    566 {
    567 	return (datadm_parse_nonnull_str(str, &sp_entry->spe_libpath));
    568 }
    569 
    570 static int
    571 datadm_parse_sp_version(char *str, datadm_sp_entry_t *sp_entry)
    572 {
    573 	return (datadm_parse_version(str, &sp_entry->spe_sp_version));
    574 }
    575 
    576 static int
    577 datadm_parse_sp_data(char *str, datadm_sp_entry_t *sp_entry)
    578 {
    579 	return (datadm_parse_generic_str(str, &sp_entry->spe_sp_data));
    580 }
    581 
    582 static void
    583 datadm_enqueue_entry(datadm_list_t *list, datadm_entry_t *entry)
    584 {
    585 	if (list->dl_head == NULL) {
    586 		list->dl_head = entry;
    587 		list->dl_tail = entry;
    588 		list->dl_count = 1;
    589 	} else {
    590 		list->dl_tail->de_next = entry;
    591 		list->dl_tail = entry;
    592 		list->dl_count++;
    593 	}
    594 }
    595 
    596 /*
    597  * iterates through the list applying func on each element.
    598  * break and return if func returns non-zero.
    599  */
    600 static int
    601 datadm_walk_list(datadm_list_t *list, int (*func)(datadm_entry_t *, void *),
    602 	void *arg)
    603 {
    604 	datadm_entry_t	*entry;
    605 	int		retval = 0;
    606 
    607 	entry = list->dl_head;
    608 	while (entry != NULL) {
    609 		retval = (*func)(entry, arg);
    610 		if (retval != 0) break;
    611 		entry = entry->de_next;
    612 	}
    613 	return (retval);
    614 }
    615 
    616 /*
    617  * iterates through the list applying free_func to each element.
    618  * list becomes empty when the function returns.
    619  */
    620 static void
    621 datadm_free_list(datadm_list_t *list, void (*free_func)(datadm_entry_t *))
    622 {
    623 	while (list->dl_head != NULL) {
    624 		datadm_entry_t	*entry;
    625 
    626 		entry = list->dl_head;
    627 		list->dl_head = entry->de_next;
    628 		(*free_func)(entry);
    629 	}
    630 	list->dl_count = 0;
    631 	list->dl_tail = NULL;
    632 }
    633 
    634 static datadm_sp_entry_t *
    635 datadm_alloc_sp_entry(void)
    636 {
    637 	datadm_sp_entry_t	*sp_entry;
    638 
    639 	sp_entry = (datadm_sp_entry_t *)malloc(sizeof (*sp_entry));
    640 	if (sp_entry == NULL) {
    641 		return (NULL);
    642 	}
    643 	bzero(sp_entry, sizeof (*sp_entry));
    644 	return (sp_entry);
    645 }
    646 
    647 static void
    648 datadm_free_sp_entry(datadm_sp_entry_t *sp_entry)
    649 {
    650 	if (sp_entry->spe_devname != NULL) {
    651 		free(sp_entry->spe_devname);
    652 		sp_entry->spe_devname = NULL;
    653 	}
    654 	if (sp_entry->spe_api_version.dv_name != NULL) {
    655 		free(sp_entry->spe_api_version.dv_name);
    656 		sp_entry->spe_api_version.dv_name = NULL;
    657 	}
    658 	sp_entry->spe_api_version.dv_major = 0;
    659 	sp_entry->spe_api_version.dv_minor = 0;
    660 	sp_entry->spe_threadsafe = 0;
    661 	sp_entry->spe_default = 0;
    662 	if (sp_entry->spe_libpath != NULL) {
    663 		free(sp_entry->spe_libpath);
    664 		sp_entry->spe_libpath = NULL;
    665 	}
    666 	if (sp_entry->spe_sp_version.dv_name != NULL) {
    667 		free(sp_entry->spe_sp_version.dv_name);
    668 		sp_entry->spe_sp_version.dv_name = NULL;
    669 	}
    670 	sp_entry->spe_sp_version.dv_major = 0;
    671 	sp_entry->spe_sp_version.dv_minor = 0;
    672 	if (sp_entry->spe_sp_data != NULL) {
    673 		free(sp_entry->spe_sp_data);
    674 		sp_entry->spe_sp_data = NULL;
    675 	}
    676 	free(sp_entry);
    677 }
    678 
    679 static int
    680 datadm_str_match(char *s1, char *s2)
    681 {
    682 	if (s1 == NULL || s2 == NULL) {
    683 		if (s1 != s2) {
    684 			return (0);
    685 		}
    686 	} else {
    687 		if (strcmp(s1, s2) != 0) {
    688 			return (0);
    689 		}
    690 	}
    691 	return (1);
    692 }
    693 
    694 static int
    695 datadm_version_match(datadm_version_t *v1, datadm_version_t *v2)
    696 {
    697 	if (!datadm_str_match(v1->dv_name, v2->dv_name)) {
    698 		return (0);
    699 	}
    700 	if (v1->dv_major != v2->dv_major) {
    701 		return (0);
    702 	}
    703 	if (v1->dv_minor != v2->dv_minor) {
    704 		return (0);
    705 	}
    706 	return (1);
    707 }
    708 
    709 static int
    710 datadm_sp_entry_match(datadm_sp_entry_t *sp1, datadm_sp_entry_t *sp2)
    711 {
    712 	if (!datadm_str_match(sp1->spe_devname, sp2->spe_devname)) {
    713 		return (0);
    714 	}
    715 	if (!datadm_version_match(&sp1->spe_api_version,
    716 	    &sp2->spe_api_version)) {
    717 		return (0);
    718 	}
    719 	if (sp1->spe_threadsafe != sp2->spe_threadsafe) {
    720 		return (0);
    721 	}
    722 	if (sp2->spe_default != sp2->spe_default) {
    723 		return (0);
    724 	}
    725 	if (!datadm_str_match(sp1->spe_libpath, sp2->spe_libpath)) {
    726 		return (0);
    727 	}
    728 	if (!datadm_version_match(&sp1->spe_sp_version,
    729 	    &sp2->spe_sp_version)) {
    730 		return (0);
    731 	}
    732 	if (!datadm_str_match(sp1->spe_sp_data, sp2->spe_sp_data)) {
    733 		return (0);
    734 	}
    735 	return (1);
    736 }
    737 
    738 static datadm_ia_entry_t *
    739 datadm_alloc_ia_entry(void)
    740 {
    741 	datadm_ia_entry_t	*ia_entry;
    742 
    743 	ia_entry = (datadm_ia_entry_t *)malloc(sizeof (*ia_entry));
    744 	if (ia_entry == NULL) {
    745 		return (NULL);
    746 	}
    747 	bzero(ia_entry, sizeof (*ia_entry));
    748 	return (ia_entry);
    749 }
    750 
    751 static void
    752 datadm_free_ia_entry(datadm_ia_entry_t *ia_entry)
    753 {
    754 	free(ia_entry);
    755 }
    756 
    757 static datadm_hca_entry_t *
    758 datadm_alloc_hca_entry(void)
    759 {
    760 	datadm_hca_entry_t	*hca_entry;
    761 
    762 	hca_entry = (datadm_hca_entry_t *)malloc(sizeof (*hca_entry));
    763 	if (hca_entry == NULL) {
    764 		return (NULL);
    765 	}
    766 	bzero(hca_entry, sizeof (*hca_entry));
    767 	return (hca_entry);
    768 }
    769 
    770 static void
    771 datadm_free_hca_entry(datadm_hca_entry_t *hca_entry)
    772 {
    773 	if (hca_entry->he_name != NULL) {
    774 		free(hca_entry->he_name);
    775 		hca_entry->he_name = NULL;
    776 	}
    777 	datadm_free_list(&hca_entry->he_sp_list,
    778 	    (void (*)(datadm_entry_t *))datadm_free_sp_entry);
    779 	datadm_free_list(&hca_entry->he_ia_list,
    780 	    (void (*)(datadm_entry_t *))datadm_free_ia_entry);
    781 	free(hca_entry);
    782 }
    783 
    784 static int
    785 datadm_hca_entry_match(datadm_hca_entry_t *h1, datadm_hca_entry_t *h2)
    786 {
    787 	if (!datadm_str_match(h1->he_name, h2->he_name)) {
    788 		return (0);
    789 	}
    790 	return (1);
    791 }
    792 
    793 static int
    794 datadm_hca_entry_find(datadm_hca_entry_t *h1, datadm_hca_find_t *hf)
    795 {
    796 	if (datadm_str_match(h1->he_name, hf->hf_sp_entry->spe_devname)) {
    797 		hf->hf_hca_entry = h1;
    798 		return (1);
    799 	}
    800 	return (0);
    801 }
    802 
    803 static int
    804 datadm_ia_entry_find(datadm_ia_entry_t *i1, datadm_ia_find_t *iaf)
    805 {
    806 	if (i1->iae_devnum == iaf->if_ia_devnum) {
    807 		iaf->if_ia_entry = i1;
    808 		return (1);
    809 	}
    810 	return (0);
    811 }
    812 
    813 static datadm_cmnt_entry_t *
    814 datadm_alloc_cmnt_entry(void)
    815 {
    816 	datadm_cmnt_entry_t	*cmnt_entry;
    817 
    818 	cmnt_entry = (datadm_cmnt_entry_t *)malloc(sizeof (*cmnt_entry));
    819 	if (cmnt_entry == NULL) {
    820 		return (NULL);
    821 	}
    822 	bzero(cmnt_entry, sizeof (*cmnt_entry));
    823 	return (cmnt_entry);
    824 }
    825 
    826 static void
    827 datadm_free_cmnt_entry(datadm_cmnt_entry_t *cmnt_entry)
    828 {
    829 	if (cmnt_entry->cmnt_line != NULL) {
    830 		free(cmnt_entry->cmnt_line);
    831 		cmnt_entry->cmnt_line = NULL;
    832 	}
    833 	free(cmnt_entry);
    834 }
    835 
    836 /*
    837  * tokenizes a line and strips off the quotes from quoted strings
    838  */
    839 static int
    840 datadm_parse_line(char *line_buf, char *tokens[], int *token_count)
    841 {
    842 	int			len, i;
    843 	int			count = 0;
    844 	char			*start = NULL;
    845 
    846 	/* the line must not be longer than DATADM_LINESZ */
    847 	len = strlen(line_buf);
    848 	if (line_buf[len - 1] != '\n') {
    849 		return (-1);
    850 	}
    851 	/* discard blank lines and comments */
    852 	if (len == 1) {
    853 		*token_count = 0;
    854 		return (0);
    855 	}
    856 	if (len >= 2 && line_buf[0] == '#') {
    857 		*token_count = 0;
    858 		return (0);
    859 	}
    860 	/* removes the new line */
    861 	line_buf[len - 1] = '\0';
    862 	len--;
    863 
    864 	for (i = 0; i < len; i++) {
    865 		if (start != NULL) {
    866 			/*
    867 			 * start points to the start of
    868 			 * a new token. if start is '"',
    869 			 * we should expect a quoted
    870 			 * string.
    871 			 */
    872 			if (*start == '\"') {
    873 				/*
    874 				 * keep scanning until we
    875 				 * hit the end quote.
    876 				 */
    877 				if (line_buf[i] != '\"') {
    878 					continue;
    879 				}
    880 				/*
    881 				 * skip past the start quote
    882 				 */
    883 				start++;
    884 			} else {
    885 				/*
    886 				 * our token is not a quoted
    887 				 * string. our token ends only
    888 				 * when we hit a whitespace.
    889 				 */
    890 				if (!isspace(line_buf[i])) {
    891 					continue;
    892 				}
    893 			}
    894 			/*
    895 			 * nullify the end quote (if any)
    896 			 * and update the tokens array.
    897 			 */
    898 			line_buf[i] = '\0';
    899 			tokens[count] = start;
    900 			start = NULL;
    901 			count++;
    902 		} else {
    903 			/*
    904 			 * skip whitespaces
    905 			 */
    906 			if (isspace(line_buf[i])) {
    907 				continue;
    908 			} else {
    909 				start = &line_buf[i];
    910 			}
    911 		}
    912 		if (count == DATADM_MAX_TOKENS) {
    913 			start = NULL;
    914 			break;
    915 		}
    916 	}
    917 	if (start != NULL) {
    918 		tokens[count] = start;
    919 		start = NULL;
    920 		count++;
    921 	}
    922 	*token_count = count;
    923 	return (0);
    924 }
    925 
    926 /*
    927  * attempts to save sp_entry into hca_list.
    928  * becomes no-op if sp entry already exists.
    929  * new hca entries and ia entries are created as needed.
    930  */
    931 static int
    932 datadm_process_sp_entry(datadm_list_t *hca_list, datadm_sp_entry_t *sp_entry,
    933 	int ia_devnum)
    934 {
    935 	datadm_hca_find_t	hca_find;
    936 	datadm_ia_find_t	ia_find;
    937 	datadm_hca_entry_t	*hca_entry;
    938 
    939 	hca_find.hf_sp_entry = sp_entry;
    940 	hca_find.hf_hca_entry = NULL;
    941 	(void) datadm_walk_list(hca_list, (int (*)(datadm_entry_t *, void *))
    942 	    datadm_hca_entry_find, (void *)&hca_find);
    943 
    944 	if (hca_find.hf_hca_entry == NULL) {
    945 		int	dlen;
    946 
    947 		/*
    948 		 * hca_entry not found, need to create
    949 		 * and insert one.
    950 		 */
    951 		hca_entry = datadm_alloc_hca_entry();
    952 		if (hca_entry == NULL) {
    953 			return (-1);
    954 		}
    955 		dlen = strlen(sp_entry->spe_devname);
    956 		hca_entry->he_name = (char *)malloc(dlen + 1);
    957 		if (hca_entry->he_name == NULL) {
    958 			datadm_free_hca_entry(hca_entry);
    959 			return (-1);
    960 		}
    961 		(void) strcpy(hca_entry->he_name, sp_entry->spe_devname);
    962 		datadm_enqueue_entry(hca_list, (datadm_entry_t *)hca_entry);
    963 	} else {
    964 		hca_entry = hca_find.hf_hca_entry;
    965 	}
    966 	if (ia_devnum == -1) {
    967 		goto put_sp_entry;
    968 	}
    969 	ia_find.if_ia_devnum = ia_devnum;
    970 	ia_find.if_ia_entry = NULL;
    971 	(void) datadm_walk_list(&hca_entry->he_ia_list,
    972 	    (int (*)(datadm_entry_t *, void *))datadm_ia_entry_find, &ia_find);
    973 
    974 	if (ia_find.if_ia_entry == NULL) {
    975 		datadm_ia_entry_t	*ia_entry;
    976 
    977 		/*
    978 		 * ia_entry not found, need to create
    979 		 * and insert one.
    980 		 */
    981 		ia_entry = datadm_alloc_ia_entry();
    982 		if (ia_entry == NULL) {
    983 			return (-1);
    984 		}
    985 		ia_entry->iae_devnum = ia_devnum;
    986 		datadm_enqueue_entry(&hca_entry->he_ia_list,
    987 		    (datadm_entry_t *)ia_entry);
    988 	}
    989 
    990 put_sp_entry:;
    991 
    992 	if (datadm_walk_list(&hca_entry->he_sp_list,
    993 	    (int (*)(datadm_entry_t *, void *))datadm_sp_entry_match,
    994 	    (void *)sp_entry)) {
    995 		return (1);
    996 	} else {
    997 		/*
    998 		 * only insert sp_entry if it is not found.
    999 		 */
   1000 		datadm_enqueue_entry(&hca_entry->he_sp_list,
   1001 		    (datadm_entry_t *)sp_entry);
   1002 	}
   1003 	return (0);
   1004 }
   1005 
   1006 /*
   1007  * parses service_provider.conf
   1008  */
   1009 static int
   1010 datadm_parse_sp_conf(datadm_list_t *hca_list)
   1011 {
   1012 	datadm_sp_entry_t	*sp_entry;
   1013 	FILE			*sp_file;
   1014 	char			*sp_conf = datadm_args.da_sp_conf;
   1015 	char			*tokens[DATADM_MAX_TOKENS];
   1016 	char			line_buf[DATADM_LINESZ];
   1017 	int			retval = 0;
   1018 	int			token_count = 0;
   1019 	int			line_count = 0;
   1020 
   1021 	sp_file = fopen(sp_conf, "r");
   1022 	if (sp_file == NULL) {
   1023 		(void) fprintf(stderr,
   1024 		    gettext("datadm: cannot open %s\n"), sp_conf);
   1025 		return (-1);
   1026 	}
   1027 
   1028 	for (;;) {
   1029 		bzero(line_buf, DATADM_LINESZ);
   1030 		if (fgets(line_buf, DATADM_LINESZ, sp_file) == NULL) {
   1031 			break;
   1032 		}
   1033 		token_count = 0;
   1034 		line_count++;
   1035 		retval = datadm_parse_line(line_buf, tokens, &token_count);
   1036 		if (retval != 0) {
   1037 			(void) fprintf(stderr, gettext(
   1038 			    "datadm: %s: line %d exceeded max length %d\n"),
   1039 			    sp_conf, line_count, DATADM_LINESZ);
   1040 			break;
   1041 		}
   1042 		if (token_count == 0) continue;
   1043 		if (token_count == DATADM_NUM_SP_TOKENS) {
   1044 			int i = 0;
   1045 
   1046 			sp_entry = datadm_alloc_sp_entry();
   1047 			if (sp_entry == NULL) {
   1048 				retval = -1;
   1049 				break;
   1050 			}
   1051 
   1052 			/*
   1053 			 * sp_entry gets filled incrementally by
   1054 			 * each parsing function
   1055 			 */
   1056 			for (i = 0; i < DATADM_NUM_SP_TOKENS &&
   1057 			    retval == 0; i++) {
   1058 				retval = (*datadm_sp_parse_funcs[i])
   1059 				    (tokens[i], (void *)sp_entry);
   1060 			}
   1061 			if (retval != 0) {
   1062 				(void) fprintf(stderr, gettext(
   1063 				    "datadm: parse error: %s, "
   1064 				    "line %d, token: %s\n"),
   1065 				    sp_conf, line_count, tokens[i - 1]);
   1066 				datadm_free_sp_entry(sp_entry);
   1067 				sp_entry = NULL;
   1068 				break;
   1069 			}
   1070 
   1071 			retval = datadm_process_sp_entry(hca_list,
   1072 			    sp_entry, -1);
   1073 			if (retval != 0) {
   1074 				datadm_free_sp_entry(sp_entry);
   1075 				if (retval == 1) {
   1076 					retval = 0;
   1077 				} else {
   1078 					break;
   1079 				}
   1080 			}
   1081 		} else {
   1082 			(void) fprintf(stderr, gettext(
   1083 			    "datadm: parse error: %s, line %d, "
   1084 			    "# of tokens: %d, expected %d\n"), sp_conf,
   1085 			    line_count, token_count, DATADM_NUM_SP_TOKENS);
   1086 			retval = -1;
   1087 			break;
   1088 		}
   1089 	}
   1090 	if (retval != 0) {
   1091 		datadm_free_list(hca_list,
   1092 		    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1093 	}
   1094 	(void) fclose(sp_file);
   1095 	return (retval);
   1096 }
   1097 
   1098 /*
   1099  * parses dat.conf
   1100  */
   1101 static int
   1102 datadm_parse_dat_conf(datadm_list_t *hca_list)
   1103 {
   1104 	boolean_t		save_header = B_TRUE;
   1105 	datadm_sp_entry_t	*sp_entry;
   1106 	FILE			*dat_file;
   1107 	char			*dat_conf = datadm_args.da_dat_conf;
   1108 	char			*tokens[DATADM_MAX_TOKENS];
   1109 	char			line_buf[DATADM_LINESZ];
   1110 	int			retval = 0;
   1111 	int			token_count = 0;
   1112 	int			line_count = 0;
   1113 
   1114 	dat_file = fopen(dat_conf, "r");
   1115 	if (dat_file == NULL) {
   1116 		/* dat.conf not existing is not an error for OP_ADD */
   1117 		if (datadm_args.da_op_type == DATADM_OP_ADD) {
   1118 			return (0);
   1119 		}
   1120 		(void) fprintf(stderr, gettext("datadm: cannot open %s\n"),
   1121 		    dat_conf);
   1122 		return (-1);
   1123 	}
   1124 
   1125 	for (;;) {
   1126 		bzero(line_buf, DATADM_LINESZ);
   1127 		if (fgets(line_buf, DATADM_LINESZ, dat_file) == NULL) {
   1128 			break;
   1129 		}
   1130 		token_count = 0;
   1131 		line_count++;
   1132 		retval = datadm_parse_line(line_buf, tokens, &token_count);
   1133 		if (retval != 0) {
   1134 			(void) fprintf(stderr, gettext(
   1135 			    "datadm: %s: line %d exceeded max length %d\n"),
   1136 			    dat_conf, line_count, DATADM_LINESZ);
   1137 			break;
   1138 		}
   1139 		if (token_count == 0) {
   1140 			datadm_cmnt_entry_t	*cmnt_entry;
   1141 			int			cmnt_len;
   1142 
   1143 			/*
   1144 			 * comments are saved only if they are
   1145 			 * at the top of dat.conf.
   1146 			 */
   1147 			if (!save_header) continue;
   1148 			cmnt_entry = datadm_alloc_cmnt_entry();
   1149 			if (cmnt_entry == NULL) {
   1150 				perror("datadm: malloc");
   1151 				retval = -1;
   1152 				break;
   1153 			}
   1154 			cmnt_len = strlen(line_buf);
   1155 			cmnt_entry->cmnt_line = (char *)malloc(cmnt_len + 1);
   1156 			if (cmnt_entry->cmnt_line == NULL) {
   1157 				perror("datadm: malloc");
   1158 				datadm_free_cmnt_entry(cmnt_entry);
   1159 				retval = -1;
   1160 				break;
   1161 			}
   1162 			(void) strncpy(cmnt_entry->cmnt_line,
   1163 			    line_buf, cmnt_len);
   1164 			cmnt_entry->cmnt_line[cmnt_len] = '\0';
   1165 			datadm_enqueue_entry(&datadm_conf_header,
   1166 			    (datadm_entry_t *)cmnt_entry);
   1167 			continue;
   1168 		}
   1169 		if (token_count == DATADM_NUM_DAT_TOKENS) {
   1170 			int i = 0;
   1171 			int ia_devnum = -1;
   1172 
   1173 			/*
   1174 			 * we stop saving comment lines once
   1175 			 * we see the first valid line.
   1176 			 */
   1177 			save_header = B_FALSE;
   1178 			sp_entry = datadm_alloc_sp_entry();
   1179 			if (sp_entry == NULL) {
   1180 				retval = -1;
   1181 				break;
   1182 			}
   1183 
   1184 			/*
   1185 			 * sp_entry gets filled incrementally by
   1186 			 * each parsing function
   1187 			 */
   1188 			for (i = 0; i < DATADM_NUM_DAT_TOKENS &&
   1189 			    retval == 0; i++) {
   1190 				void	*arg;
   1191 
   1192 				if (i == 0) {
   1193 					/*
   1194 					 * the first token (ia name)
   1195 					 * does not belong to an
   1196 					 * sp_entry
   1197 					 */
   1198 					arg = (void *)&ia_devnum;
   1199 				} else {
   1200 					arg = (void *)sp_entry;
   1201 				}
   1202 				retval = (*datadm_dat_parse_funcs[i])
   1203 				    (tokens[i], arg);
   1204 			}
   1205 			if (retval != 0) {
   1206 				(void) fprintf(stderr, gettext(
   1207 				    "datadm: parse error: %s, "
   1208 				    "line %d, token: %s\n"), dat_conf,
   1209 				    line_count, tokens[i - 1]);
   1210 				datadm_free_sp_entry(sp_entry);
   1211 				sp_entry = NULL;
   1212 				break;
   1213 			}
   1214 
   1215 			/*
   1216 			 * we ignore the ibds in dat.conf if we are
   1217 			 * doing update
   1218 			 */
   1219 			if (datadm_args.da_op_type == DATADM_OP_UPDATE) {
   1220 				ia_devnum = -1;
   1221 			}
   1222 			retval = datadm_process_sp_entry(hca_list, sp_entry,
   1223 			    ia_devnum);
   1224 			if (retval != 0) {
   1225 				datadm_free_sp_entry(sp_entry);
   1226 				if (retval == 1) {
   1227 					retval = 0;
   1228 				} else {
   1229 					break;
   1230 				}
   1231 			}
   1232 		} else {
   1233 			(void) fprintf(stderr, gettext(
   1234 			    "datadm: parse error: %s, line %d, "
   1235 			    "# of tokens: %d, expected %d\n"), dat_conf,
   1236 			    line_count, token_count, DATADM_NUM_DAT_TOKENS);
   1237 			retval = -1;
   1238 			break;
   1239 		}
   1240 	}
   1241 	if (retval != 0) {
   1242 		datadm_free_list(&datadm_conf_header,
   1243 		    (void (*)(datadm_entry_t *))datadm_free_cmnt_entry);
   1244 		datadm_free_list(hca_list,
   1245 		    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1246 	}
   1247 	(void) fclose(dat_file);
   1248 	return (retval);
   1249 }
   1250 
   1251 /*
   1252  * discovers all ibd devices under a particular hca
   1253  */
   1254 static int
   1255 datadm_fill_ia_list(datadm_hca_entry_t *hca, datadm_fill_ia_list_t *args)
   1256 {
   1257 	di_node_t	root_node;
   1258 	di_node_t	hca_node;
   1259 	int		retval = 0;
   1260 	int		sv4, sv6;
   1261 
   1262 	root_node = args->ia_root_node;
   1263 	sv4 = args->ia_sock_fd_v4;
   1264 	sv6 = args->ia_sock_fd_v6;
   1265 
   1266 	hca_node = di_drv_first_node(hca->he_name, root_node);
   1267 	if (hca_node == DI_NODE_NIL) {
   1268 		return (0);
   1269 	}
   1270 	while (hca_node != DI_NODE_NIL) {
   1271 		di_node_t	ibd_node;
   1272 
   1273 		ibd_node = di_drv_first_node(DATADM_IA_NAME, hca_node);
   1274 		while (ibd_node != DI_NODE_NIL) {
   1275 			datadm_ia_find_t	ia_find;
   1276 			datadm_ia_entry_t	*ia_entry;
   1277 			struct lifreq		req;
   1278 			int			devnum, rval;
   1279 
   1280 			if (hca_node != di_parent_node(ibd_node)) {
   1281 				ibd_node = di_drv_next_node(ibd_node);
   1282 				continue;
   1283 			}
   1284 			devnum = di_instance(ibd_node);
   1285 			if (devnum == -1) {
   1286 				ibd_node = di_drv_next_node(ibd_node);
   1287 				continue;
   1288 			}
   1289 
   1290 			(void) snprintf(req.lifr_name, sizeof (req.lifr_name),
   1291 			    "%s%d", DATADM_IA_NAME, devnum);
   1292 			/*
   1293 			 * we don't really need to know the ip address.
   1294 			 * we just want to check if the device is plumbed
   1295 			 * or not.
   1296 			 */
   1297 			rval = ioctl(sv4, SIOCGLIFADDR, (caddr_t)&req);
   1298 			if (rval != 0) {
   1299 				/*
   1300 				 * we try v6 if the v4 address isn't found.
   1301 				 */
   1302 				rval = ioctl(sv6, SIOCGLIFADDR, (caddr_t)&req);
   1303 				if (rval != 0) {
   1304 					ibd_node = di_drv_next_node(ibd_node);
   1305 					continue;
   1306 				}
   1307 			}
   1308 			ia_find.if_ia_devnum = devnum;
   1309 			ia_find.if_ia_entry = NULL;
   1310 			(void) datadm_walk_list(&hca->he_ia_list,
   1311 			    (int (*)(datadm_entry_t *, void *))
   1312 			    datadm_ia_entry_find, &ia_find);
   1313 
   1314 			if (ia_find.if_ia_entry == NULL) {
   1315 				/*
   1316 				 * we insert an ia entry only if
   1317 				 * it is unique.
   1318 				 */
   1319 				ia_entry = datadm_alloc_ia_entry();
   1320 				if (ia_entry == NULL) {
   1321 					retval = -1;
   1322 					break;
   1323 				}
   1324 				ia_entry->iae_devnum = devnum;
   1325 				datadm_enqueue_entry(&hca->he_ia_list,
   1326 				    (datadm_entry_t *)ia_entry);
   1327 			} else {
   1328 				ia_entry = ia_find.if_ia_entry;
   1329 			}
   1330 			ibd_node = di_drv_next_node(ibd_node);
   1331 		}
   1332 		hca_node = di_drv_next_node(hca_node);
   1333 	}
   1334 	if (retval != 0) {
   1335 		datadm_free_list(&hca->he_ia_list,
   1336 		    (void (*)(datadm_entry_t *))datadm_free_ia_entry);
   1337 	}
   1338 	return (0);
   1339 }
   1340 
   1341 /*
   1342  * used by OP_REMOVE to invalidate common sp entries between hl1 and hl2.
   1343  * invalid sp entries will be ignored by datadm_generate_dat_conf.
   1344  */
   1345 static void
   1346 datadm_invalidate_common_sp_entries(datadm_list_t *hl1, datadm_list_t *hl2)
   1347 {
   1348 	datadm_entry_t	*he1, *he2;
   1349 
   1350 	he1 = hl1->dl_head;
   1351 	while (he1 != NULL) {
   1352 		he2 = hl2->dl_head;
   1353 		while (he2 != NULL) {
   1354 			datadm_entry_t	*se1, *se2;
   1355 
   1356 			if (!datadm_hca_entry_match(
   1357 			    (datadm_hca_entry_t *)he1,
   1358 			    (datadm_hca_entry_t *)he2)) {
   1359 				he2 = he2->de_next;
   1360 				continue;
   1361 			}
   1362 			se1 = ((datadm_hca_entry_t *)he1)->he_sp_list.dl_head;
   1363 			while (se1 != NULL) {
   1364 				se2 = ((datadm_hca_entry_t *)he2)->
   1365 				    he_sp_list.dl_head;
   1366 				while (se2 != NULL) {
   1367 					if (!datadm_sp_entry_match(
   1368 					    (datadm_sp_entry_t *)se1,
   1369 					    (datadm_sp_entry_t *)se2)) {
   1370 						se2 = se2->de_next;
   1371 						continue;
   1372 					}
   1373 					((datadm_sp_entry_t *)se1)->
   1374 					    spe_invalid = 1;
   1375 					break;
   1376 				}
   1377 				se1 = se1->de_next;
   1378 			}
   1379 			break;
   1380 		}
   1381 		he1 = he1->de_next;
   1382 	}
   1383 }
   1384 
   1385 /*
   1386  * applies datadm_fill_ia_list on each hca_list element
   1387  */
   1388 static int
   1389 datadm_build_ia_lists(datadm_list_t *hca_list)
   1390 {
   1391 	datadm_fill_ia_list_t	ia_args;
   1392 	di_node_t		root_node;
   1393 	int			retval = 0;
   1394 	int			sv4, sv6;
   1395 
   1396 	root_node = di_init("/", DINFOCPYALL);
   1397 	if (root_node == DI_NODE_NIL) {
   1398 		perror("datadm: di_init");
   1399 		return (-1);
   1400 	}
   1401 	sv4 = socket(AF_INET, SOCK_DGRAM, 0);
   1402 	if (sv4 < 0) {
   1403 		perror("datadm: socket");
   1404 		di_fini(root_node);
   1405 		return (-1);
   1406 	}
   1407 	sv6 = socket(AF_INET6, SOCK_DGRAM, 0);
   1408 	if (sv6 < 0) {
   1409 		perror("datadm: socket");
   1410 		di_fini(root_node);
   1411 		return (-1);
   1412 	}
   1413 	ia_args.ia_root_node = root_node;
   1414 	ia_args.ia_sock_fd_v4 = sv4;
   1415 	ia_args.ia_sock_fd_v6 = sv6;
   1416 
   1417 	retval = datadm_walk_list(hca_list,
   1418 	    (int (*)(datadm_entry_t *, void *))datadm_fill_ia_list, &ia_args);
   1419 
   1420 	(void) close(sv4);
   1421 	(void) close(sv6);
   1422 	di_fini(root_node);
   1423 	return (retval);
   1424 }
   1425 
   1426 static int
   1427 datadm_generate_conf_entry(FILE *outfile, datadm_ia_entry_t *ia_entry,
   1428 	datadm_sp_entry_t *sp_entry)
   1429 {
   1430 	int	retval;
   1431 
   1432 	retval = fprintf(outfile,
   1433 	    "%s%d  %s%d.%d  %s  %s  %s  %s%d.%d  \"%s\"  \"%s%s%s\"\n",
   1434 	    DATADM_IA_NAME, ia_entry->iae_devnum,
   1435 	    (sp_entry->spe_api_version.dv_name ?
   1436 	    sp_entry->spe_api_version.dv_name : ""),
   1437 	    sp_entry->spe_api_version.dv_major,
   1438 	    sp_entry->spe_api_version.dv_minor,
   1439 	    (sp_entry->spe_threadsafe ? "threadsafe" : "nonthreadsafe"),
   1440 	    (sp_entry->spe_default ? "default" : "nondefault"),
   1441 	    sp_entry->spe_libpath,
   1442 	    (sp_entry->spe_sp_version.dv_name ?
   1443 	    sp_entry->spe_sp_version.dv_name : ""),
   1444 	    sp_entry->spe_sp_version.dv_major,
   1445 	    sp_entry->spe_sp_version.dv_minor,
   1446 	    sp_entry->spe_sp_data,
   1447 	    DATADM_DRV_NAME, "=", sp_entry->spe_devname);
   1448 
   1449 	if (retval < 0) {
   1450 		return (-1);
   1451 	}
   1452 	return (0);
   1453 }
   1454 
   1455 /*
   1456  * generate dat.conf header
   1457  */
   1458 static int
   1459 datadm_generate_conf_header(FILE *outfile)
   1460 {
   1461 	datadm_entry_t		*cep;
   1462 	datadm_cmnt_entry_t	*cmnt;
   1463 	int			retval = 0;
   1464 
   1465 	cep = datadm_conf_header.dl_head;
   1466 	if (cep == NULL) {
   1467 		/*
   1468 		 * if dat.conf doesn't have a header, we prepend a
   1469 		 * default one.
   1470 		 */
   1471 		retval = fprintf(outfile, "%s", datadm_conf_header_default);
   1472 		goto done;
   1473 	}
   1474 	while (cep != NULL) {
   1475 		cmnt = (datadm_cmnt_entry_t *)cep;
   1476 		if (cmnt->cmnt_line != NULL) {
   1477 			int		len;
   1478 
   1479 			retval = fprintf(outfile, "%s", cmnt->cmnt_line);
   1480 			if (retval < 0) {
   1481 				break;
   1482 			}
   1483 
   1484 			/*
   1485 			 * append a newline if the comment line doesn't
   1486 			 * have one.
   1487 			 */
   1488 			len = strlen(cmnt->cmnt_line);
   1489 			if (cmnt->cmnt_line[len - 1] != '\n') {
   1490 				retval = fprintf(outfile, "\n");
   1491 				if (retval < 0) {
   1492 					break;
   1493 				}
   1494 			}
   1495 		}
   1496 		cep = cep->de_next;
   1497 	}
   1498 done:;
   1499 	if (retval < 0) {
   1500 		return (-1);
   1501 	}
   1502 	return (0);
   1503 }
   1504 
   1505 /*
   1506  * outputs dat.conf to stdout or to basedir/etc/dat/dat.conf
   1507  */
   1508 static int
   1509 datadm_generate_dat_conf(datadm_list_t *hca_list)
   1510 {
   1511 	FILE			*outfile = NULL;
   1512 	char			*dat_conf = datadm_args.da_dat_conf;
   1513 	datadm_entry_t		*hep;
   1514 	int			retval = 0;
   1515 
   1516 	if (datadm_args.da_op_type == DATADM_OP_VIEW) {
   1517 		outfile = stdout;
   1518 	} else {
   1519 		outfile = fopen(dat_conf, "w+");
   1520 		if (outfile == NULL) {
   1521 			(void) fprintf(stderr, gettext(
   1522 			    "datadm: cannot open %s: %s\n"),
   1523 			    dat_conf, strerror(errno));
   1524 			return (-1);
   1525 		}
   1526 	}
   1527 	if (outfile != stdout) {
   1528 		/*
   1529 		 * do not generate the header if we are
   1530 		 * printing to the screen
   1531 		 */
   1532 		retval = datadm_generate_conf_header(outfile);
   1533 		if (retval != 0) {
   1534 			goto done;
   1535 		}
   1536 	}
   1537 	hep = hca_list->dl_head;
   1538 	while (hep != NULL) {
   1539 		datadm_entry_t	*iep;
   1540 
   1541 		iep = ((datadm_hca_entry_t *)hep)->he_ia_list.dl_head;
   1542 		while (iep != NULL) {
   1543 			datadm_entry_t	*sep;
   1544 
   1545 			sep = ((datadm_hca_entry_t *)hep)->he_sp_list.dl_head;
   1546 			while (sep != NULL) {
   1547 				if (((datadm_sp_entry_t *)sep)->spe_invalid) {
   1548 					sep = sep->de_next;
   1549 					continue;
   1550 				}
   1551 				retval = datadm_generate_conf_entry(outfile,
   1552 				    (datadm_ia_entry_t *)iep,
   1553 				    (datadm_sp_entry_t *)sep);
   1554 				if (retval != 0) {
   1555 					goto done;
   1556 				}
   1557 				sep = sep->de_next;
   1558 			}
   1559 			iep = iep->de_next;
   1560 		}
   1561 		hep = hep->de_next;
   1562 	}
   1563 	retval = fflush(outfile);
   1564 done:;
   1565 	if (outfile != stdout) {
   1566 		(void) fclose(outfile);
   1567 	}
   1568 	if (retval < 0) {
   1569 		perror("datadm: fprintf");
   1570 	}
   1571 	return (retval);
   1572 }
   1573 
   1574 static int
   1575 datadm_view(void)
   1576 {
   1577 	int			retval = 0;
   1578 	datadm_list_t		hca_list;
   1579 
   1580 	bzero(&hca_list, sizeof (hca_list));
   1581 
   1582 	retval = datadm_parse_dat_conf(&hca_list);
   1583 	if (retval != 0) {
   1584 		goto cleanup;
   1585 	}
   1586 	retval = datadm_generate_dat_conf(&hca_list);
   1587 	if (retval != 0) {
   1588 		goto cleanup;
   1589 	}
   1590 
   1591 cleanup:;
   1592 	datadm_free_list(&datadm_conf_header,
   1593 	    (void (*)(datadm_entry_t *))datadm_free_cmnt_entry);
   1594 	datadm_free_list(&hca_list,
   1595 	    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1596 	return (retval);
   1597 }
   1598 
   1599 static int
   1600 datadm_update(void)
   1601 {
   1602 	int			retval = 0;
   1603 	datadm_list_t		hca_list;
   1604 
   1605 	bzero(&hca_list, sizeof (hca_list));
   1606 
   1607 	retval = datadm_parse_dat_conf(&hca_list);
   1608 	if (retval != 0) {
   1609 		goto cleanup;
   1610 	}
   1611 	retval = datadm_build_ia_lists(&hca_list);
   1612 	if (retval != 0) {
   1613 		goto cleanup;
   1614 	}
   1615 	retval = datadm_generate_dat_conf(&hca_list);
   1616 	if (retval != 0) {
   1617 		goto cleanup;
   1618 	}
   1619 
   1620 cleanup:;
   1621 	datadm_free_list(&datadm_conf_header,
   1622 	    (void (*)(datadm_entry_t *))datadm_free_cmnt_entry);
   1623 	datadm_free_list(&hca_list,
   1624 	    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1625 	return (retval);
   1626 }
   1627 
   1628 static int
   1629 datadm_add(void)
   1630 {
   1631 	int			retval = 0;
   1632 	datadm_list_t		hca_list;
   1633 
   1634 	bzero(&hca_list, sizeof (hca_list));
   1635 
   1636 	retval = datadm_parse_dat_conf(&hca_list);
   1637 	if (retval != 0) {
   1638 		goto cleanup;
   1639 	}
   1640 	retval = datadm_parse_sp_conf(&hca_list);
   1641 	if (retval != 0) {
   1642 		goto cleanup;
   1643 	}
   1644 	retval = datadm_build_ia_lists(&hca_list);
   1645 	if (retval != 0) {
   1646 		goto cleanup;
   1647 	}
   1648 	retval = datadm_generate_dat_conf(&hca_list);
   1649 	if (retval != 0) {
   1650 		goto cleanup;
   1651 	}
   1652 
   1653 cleanup:;
   1654 	datadm_free_list(&datadm_conf_header,
   1655 	    (void (*)(datadm_entry_t *))datadm_free_cmnt_entry);
   1656 	datadm_free_list(&hca_list,
   1657 	    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1658 	return (retval);
   1659 }
   1660 
   1661 static int
   1662 datadm_remove(void)
   1663 {
   1664 	int			retval = 0;
   1665 	datadm_list_t		hca_list;
   1666 	datadm_list_t		hca_list2;
   1667 
   1668 	bzero(&hca_list, sizeof (hca_list));
   1669 	bzero(&hca_list2, sizeof (hca_list2));
   1670 
   1671 	retval = datadm_parse_dat_conf(&hca_list);
   1672 	if (retval != 0) {
   1673 		goto cleanup;
   1674 	}
   1675 	retval = datadm_parse_sp_conf(&hca_list2);
   1676 	if (retval != 0) {
   1677 		goto cleanup;
   1678 	}
   1679 	datadm_invalidate_common_sp_entries(&hca_list, &hca_list2);
   1680 
   1681 	retval = datadm_generate_dat_conf(&hca_list);
   1682 	if (retval != 0) {
   1683 		goto cleanup;
   1684 	}
   1685 
   1686 cleanup:;
   1687 	datadm_free_list(&datadm_conf_header,
   1688 	    (void (*)(datadm_entry_t *))datadm_free_cmnt_entry);
   1689 	datadm_free_list(&hca_list,
   1690 	    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1691 	datadm_free_list(&hca_list2,
   1692 	    (void (*)(datadm_entry_t *))datadm_free_hca_entry);
   1693 	return (retval);
   1694 }
   1695 
   1696 static int
   1697 datadm_locate_dat_conf(char *basedir)
   1698 {
   1699 	char		*dat_conf;
   1700 
   1701 	if (basedir == NULL) {
   1702 		datadm_args.da_dat_conf = DATADM_DAT_CONF;
   1703 		return (0);
   1704 	}
   1705 	dat_conf = (char *)malloc(strlen(basedir) +
   1706 	    strlen(DATADM_DAT_CONF) + 1);
   1707 	if (dat_conf == NULL) {
   1708 		return (-1);
   1709 	}
   1710 	dat_conf[0] = '\0';
   1711 	(void) strcat(dat_conf, basedir);
   1712 	(void) strcat(dat_conf, DATADM_DAT_CONF);
   1713 	datadm_args.da_dat_conf = dat_conf;
   1714 	return (0);
   1715 }
   1716 
   1717 int
   1718 main(int argc, char **argv)
   1719 {
   1720 	extern char	*optarg;
   1721 	extern int	optind;
   1722 	char		*basedir = NULL;
   1723 	int		c, retval;
   1724 	int		op_type = -1, errflg = 0;
   1725 
   1726 	bzero(&datadm_args, sizeof (datadm_args));
   1727 	bzero(&datadm_conf_header, sizeof (datadm_conf_header));
   1728 
   1729 	(void) setlocale(LC_ALL, "");
   1730 #if !defined(TEXT_DOMAIN)	/* Should be defined by cc -D */
   1731 #define	TEXT_DOMAIN "SYS_TEST"	/* Use this only if it weren't */
   1732 #endif
   1733 	(void) textdomain(TEXT_DOMAIN);
   1734 
   1735 	while ((c = getopt(argc, argv, "vua:r:b:")) != EOF) {
   1736 		switch (c) {
   1737 		case 'v':
   1738 			if (op_type != -1) errflg = 1;
   1739 			op_type = DATADM_OP_VIEW;
   1740 			break;
   1741 		case 'u':
   1742 			if (op_type != -1) errflg = 1;
   1743 			op_type = DATADM_OP_UPDATE;
   1744 			break;
   1745 		case 'a':
   1746 			if (op_type != -1) errflg = 1;
   1747 			op_type = DATADM_OP_ADD;
   1748 			datadm_args.da_sp_conf = optarg;
   1749 			break;
   1750 		case 'r':
   1751 			if (op_type != -1) errflg = 1;
   1752 			op_type = DATADM_OP_REMOVE;
   1753 			datadm_args.da_sp_conf = optarg;
   1754 			break;
   1755 		case 'b':
   1756 			basedir = optarg;
   1757 			break;
   1758 		default:
   1759 			errflg = 1;
   1760 			break;
   1761 		}
   1762 		if (errflg != 0) {
   1763 			break;
   1764 		}
   1765 	}
   1766 	if (errflg != 0 || op_type == -1 || optind < argc) {
   1767 		datadm_usage();
   1768 		return (1);
   1769 	}
   1770 	datadm_args.da_op_type = op_type;
   1771 	if (datadm_locate_dat_conf(basedir)) {
   1772 		return (1);
   1773 	}
   1774 
   1775 	retval = (*datadm_ops[op_type])();
   1776 	return (retval);
   1777 }
   1778