Alias *read_alias_table( char *alias_file )
{
FILE *f;
char *line = NULL;
size_t buffer_size = 0;
ssize_t n;
Alias *result = NULL;
List *words;
char *lhs;
char *rhs;
f = fopen( alias_file, "r" );
if ( f != NULL ) {
while ( (n = getline( &line, &buffer_size, f )) > 0 ) {
/* When reading a file using getline, we are given the '\n' characters,
but in this case we're not interested in them. */
if ( (n > 0) && (line[n-1] == '\n') ) {
line[n-1] = '\0';
}
/* Splitting the line between the first and second words, gives us the
alias and what it should expand to. */
words = split_after_first_word( line );
if ( list_length( words ) == 2 ) {
lhs = get_nth_word( words, 0 );
rhs = get_nth_word( words, 1 );
/* What the alias expands to is often enclosed in
"()", but we don't need the brackets. Similary we
can strip out any unescaped quotes, i.e. '"'.*/
rhs = get_string_in_brackets( rhs );
rhs = remove_quotes( rhs );
result = new_alias( result, lhs, rhs );
} else {
fprintf( stderr, "Ignoring unexpected entry in alias table: %s\n", line );
}
free_list( words );
}
free( line );
fclose( f );
} else {
warn( "Unable to open file %s", alias_file );
}
return result;
}
int add_new_alias(t_aliases **aliases, char *name, char *cmd)
{
t_aliases *new_als;
t_aliases *last_alias;
if ((new_als = new_alias(name, cmd)) == NULL)
return (-1);
if (*aliases == NULL)
*aliases = new_als;
else
{
last_alias = *aliases;
while (last_alias->next != NULL)
last_alias = last_alias->next;
last_alias->next = new_als;
new_als->prev = last_alias;
}
return (0);
}
/********************************************************************
* FUNCTION handle_alias_parm
*
* alias def
* alias def=def-value
*
* Handle the alias command, based on the parameter
*
* INPUTS:
* varstr == alias command line
* setonly == TRUE if expecting set version only; ignore show alias
* FALSE if expecting show alias or set alias
* loginfo == TRUE if log-level=info should be used
* FALSE if log-level=debug2 should be used
* RETURNS:
* status
*********************************************************************/
static status_t
handle_alias_parm (const xmlChar *varstr,
boolean setonly,
boolean loginfo)
{
const xmlChar *valptr = NULL;
uint32 nlen = 0;
status_t res;
res = parse_alias(varstr, &nlen, &valptr);
if (res == NO_ERR) {
if (valptr) {
/* setting an alias */
alias_cb_t *alias = find_alias(varstr, nlen);
if (alias) {
if (LOGDEBUG3) {
log_debug3("\nAbout to replace alias '%s'"
"\n old value: '%s'"
"\n new value: '%s'",
alias->name,
alias->value ? alias->value : EMPTY_STRING,
valptr);
}
/* modify an existing alias */
res = set_alias(alias, valptr);
if (res == NO_ERR) {
if (loginfo) {
log_info("\nUpdated alias '%s'\n", alias->name);
} else {
log_debug2("\nUpdated alias '%s'", alias->name);
}
} else {
log_error("\nError: invalid alias value '%s'\n",
valptr);
}
} else {
/* create a new alias */
alias = new_alias(varstr, nlen);
if (alias == NULL) {
res = ERR_INTERNAL_MEM;
} else {
res = set_alias(alias, valptr);
if (res == NO_ERR) {
res = add_alias(alias);
if (res == NO_ERR) {
if (loginfo) {
log_info("\nAdded alias '%s'\n", alias->name);
} else {
log_debug2("\nAdded alias '%s'", alias->name);
}
} else {
log_error("\nError: alias was not added '%s'\n",
get_error_string(res));
}
} else {
log_error("\nError: invalid alias value '%s'\n",
valptr);
free_alias(alias);
}
}
}
} else if (!setonly) {
/* just provided a name; show alias */
show_alias_name(varstr, nlen);
} else if (LOGDEBUG) {
log_debug("\nSkipping alias '%s' because no value set", varstr);
}
} else if (res == ERR_NCX_INVALID_NAME) {
log_error("\nError: invalid alias (%s)", get_error_string(res));
} else {
log_error("\nError: invalid alias '%s' (%s)", varstr,
get_error_string(res));
}
return res;
} /* handle_alias_parm */
static int
add_devs(di_node_t node, di_minor_t minor, void *arg)
{
struct search_args *args;
int result = DI_WALK_CONTINUE;
args = (struct search_args *)arg;
if (dm_debug > 1) {
/* This is all just debugging code */
char *devpath;
char dev_name[MAXPATHLEN];
devpath = di_devfs_path(node);
(void) snprintf(dev_name, sizeof (dev_name), "%s:%s", devpath,
di_minor_name(minor));
di_devfs_path_free((void *) devpath);
(void) fprintf(stderr,
"INFO: dev: %s, node: %s%d, minor: 0x%x, type: %s\n",
dev_name, di_node_name(node), di_instance(node),
di_minor_spectype(minor),
(di_minor_nodetype(minor) != NULL ?
di_minor_nodetype(minor) : "NULL"));
}
if (bus_type(node, minor, args->ph) != NULL) {
if (add_bus(args, node, minor, NULL) == NULL) {
args->dev_walk_status = ENOMEM;
result = DI_WALK_TERMINATE;
}
} else if (is_ctrl(node, minor)) {
if (add_controller(args, node, minor) == NULL) {
args->dev_walk_status = ENOMEM;
result = DI_WALK_TERMINATE;
}
} else if (di_minor_spectype(minor) == S_IFCHR &&
(is_drive(minor) || is_zvol(node, minor))) {
char *devidstr;
char kernel_name[MAXPATHLEN];
disk_t *diskp;
(void) snprintf(kernel_name, sizeof (kernel_name), "%s%d",
di_node_name(node), di_instance(node));
devidstr = get_str_prop(DEVICE_ID_PROP, node);
args->node = node;
args->minor = minor;
/*
* Check if we already got this disk and
* this is another slice.
*/
if (!have_disk(args, devidstr, kernel_name, &diskp)) {
args->dev_walk_status = 0;
/*
* This is a newly found disk, create the
* disk structure.
*/
diskp = create_disk(devidstr, kernel_name, args);
if (diskp == NULL) {
args->dev_walk_status = ENOMEM;
}
if (diskp->drv_type != DM_DT_FLOPPY) {
/* add the controller relationship */
if (args->dev_walk_status == 0) {
if (add_disk2controller(diskp,
args) != 0) {
args->dev_walk_status = ENOMEM;
}
}
}
}
if (is_zvol(node, minor)) {
char zvdsk[MAXNAMELEN];
char *str;
alias_t *ap;
if (di_prop_lookup_strings(di_minor_devt(minor),
node, "name", &str) == -1)
return (DI_WALK_CONTINUE);
(void) snprintf(zvdsk, MAXNAMELEN, "/dev/zvol/rdsk/%s",
str);
if ((ap = find_alias(diskp, kernel_name)) == NULL) {
if (new_alias(diskp, kernel_name,
zvdsk, args) != 0) {
args->dev_walk_status = ENOMEM;
}
} else {
/*
* It is possible that we have already added
* this devpath.
* Do not add it again. new_devpath will
* return a 0 if found, and not add the path.
*/
if (new_devpath(ap, zvdsk) != 0) {
args->dev_walk_status = ENOMEM;
}
}
}
/* Add the devpaths for the drive. */
if (args->dev_walk_status == 0) {
char *devpath;
char slice_path[MAXPATHLEN];
char *pattern;
/*
* We will come through here once for each of
* the raw slice device names.
*/
devpath = di_devfs_path(node);
(void) snprintf(slice_path,
sizeof (slice_path), "%s:%s",
devpath, di_minor_name(minor));
di_devfs_path_free((void *) devpath);
if (libdiskmgt_str_eq(di_minor_nodetype(minor),
DDI_NT_FD)) {
pattern = DEVLINK_FLOPPY_REGEX;
} else {
pattern = DEVLINK_REGEX;
}
/* Walk the /dev tree to get the devlinks. */
(void) di_devlink_walk(args->handle, pattern,
slice_path, DI_PRIMARY_LINK, arg, add_devpath);
}
if (args->dev_walk_status != 0) {
result = DI_WALK_TERMINATE;
}
}
return (result);
}
static int
add_devpath(di_devlink_t devlink, void *arg)
{
struct search_args *args;
char *devidstr;
disk_t *diskp;
char kernel_name[MAXPATHLEN];
args = (struct search_args *)arg;
/*
* Get the diskp value from calling have_disk. Can either be found
* by kernel name or devid.
*/
diskp = NULL;
devidstr = get_str_prop(DEVICE_ID_PROP, args->node);
(void) snprintf(kernel_name, sizeof (kernel_name), "%s%d",
di_node_name(args->node), di_instance(args->node));
(void) have_disk(args, devidstr, kernel_name, &diskp);
/*
* The devlink_path is usually of the form /dev/rdsk/c0t0d0s0.
* For diskettes it is /dev/rdiskette*.
* On Intel we would also get each fdisk partition as well
* (e.g. /dev/rdsk/c0t0d0p0).
*/
if (diskp != NULL) {
alias_t *ap;
char *devlink_path;
if (diskp->drv_type != DM_DT_FLOPPY) {
/*
* Add other controllers for multipath disks.
* This will have no effect if the controller
* relationship is already set up.
*/
if (add_disk2controller(diskp, args) != 0) {
args->dev_walk_status = ENOMEM;
}
}
(void) snprintf(kernel_name, sizeof (kernel_name), "%s%d",
di_node_name(args->node), di_instance(args->node));
devlink_path = (char *)di_devlink_path(devlink);
if (dm_debug > 1) {
(void) fprintf(stderr,
"INFO: devpath %s\n", devlink_path);
}
if ((ap = find_alias(diskp, kernel_name)) == NULL) {
if (new_alias(diskp, kernel_name, devlink_path,
args) != 0) {
args->dev_walk_status = ENOMEM;
}
} else {
/*
* It is possible that we have already added this
* devpath. Do not add it again. new_devpath will
* return a 0 if found, and not add the path.
*/
if (new_devpath(ap, devlink_path) != 0) {
args->dev_walk_status = ENOMEM;
}
}
}
return (DI_WALK_CONTINUE);
}
