static struct udev_device *handle_scsi_iscsi(struct udev_device *parent, char **path)
{
struct udev *udev = udev_device_get_udev(parent);
struct udev_device *transportdev;
struct udev_device *sessiondev = NULL;
const char *target;
char *connname;
struct udev_device *conndev = NULL;
const char *addr;
const char *port;
/* find iscsi session */
transportdev = parent;
while (1) {
transportdev = udev_device_get_parent(transportdev);
if (transportdev == NULL)
return NULL;
if (strncmp(udev_device_get_sysname(transportdev), "session", 7) == 0)
break;
}
if (transportdev == NULL)
return NULL;
/* find iscsi session device */
sessiondev = udev_device_new_from_subsystem_sysname(udev, "iscsi_session", udev_device_get_sysname(transportdev));
if (sessiondev == NULL)
return NULL;
target = udev_device_get_sysattr_value(sessiondev, "targetname");
if (target == NULL) {
parent = NULL;
goto out;
}
if (asprintf(&connname, "connection%s:0", udev_device_get_sysnum(transportdev)) < 0) {
parent = NULL;
goto out;
}
conndev = udev_device_new_from_subsystem_sysname(udev, "iscsi_connection", connname);
free(connname);
if (conndev == NULL) {
parent = NULL;
goto out;
}
addr = udev_device_get_sysattr_value(conndev, "persistent_address");
port = udev_device_get_sysattr_value(conndev, "persistent_port");
if (addr == NULL || port == NULL) {
parent = NULL;
goto out;
}
path_prepend(path, "ip-%s:%s-iscsi-%s-lun-%s", addr, port, target, udev_device_get_sysnum(parent));
out:
udev_device_unref(sessiondev);
udev_device_unref(conndev);
return parent;
}
static struct udev_device *handle_ccw(struct udev_device *parent, struct udev_device *dev, char **path)
{
struct udev_device *scsi_dev;
scsi_dev = udev_device_get_parent_with_subsystem_devtype(dev, "scsi", "scsi_device");
if (scsi_dev != NULL) {
const char *wwpn;
const char *lun;
const char *hba_id;
hba_id = udev_device_get_sysattr_value(scsi_dev, "hba_id");
wwpn = udev_device_get_sysattr_value(scsi_dev, "wwpn");
lun = udev_device_get_sysattr_value(scsi_dev, "fcp_lun");
if (hba_id != NULL && lun != NULL && wwpn != NULL) {
path_prepend(path, "ccw-%s-zfcp-%s:%s", hba_id, wwpn, lun);
goto out;
}
}
path_prepend(path, "ccw-%s", udev_device_get_sysname(parent));
out:
parent = skip_subsystem(parent, "ccw");
return parent;
}
/**
* Find a location of the suffix in the tree.
* @param st the suffixtree in question
* @param j the extension number counting from 0
* @param i the current phase - 1
* @param log the log to record errors in
* @return the position (combined node and edge-offset)
*/
static pos *find_beta( suffixtree *st, int j, int i, plugin_log *log )
{
pos *p;
if ( st->old_j > 0 && st->old_j == j )
{
p = pos_create();
p->loc = st->old_beta.loc;
p->v = st->old_beta.v;
}
else if ( j>i ) // empty string
{
p = pos_create();
p->loc = 0;
p->v = st->root;
}
else if ( j==0 ) // entire string
{
p = pos_create();
p->loc = i;
p->v = st->f;
}
else // walk across tree
{
node *v = st->last.v;
int len = st->last.loc-node_start(st->last.v)+1;
path *q = path_create( node_start(v), len, log );
v = node_parent( v );
while ( v != st->root && node_link(v)==NULL )
{
path_prepend( q, node_len(v) );
v = node_parent( v );
}
if ( v != st->root )
{
v = node_link( v );
p = walk_down( st, v, q );
}
else
{
path_dispose( q );
p = walk_down( st, st->root, path_create(j,i-j+1,log) );
}
}
st->last = *p;
return p;
}
/**
* Find a location of the suffix in the tree.
* @param j the extension number counting from 0
* @param i the current phase - 1
* @return the position (combined node and edge-offset)
*/
static pos *find_beta( int j, int i )
{
pos *p;
if ( old_j > 0 && old_j == j )
{
p = pos_create();
p->loc = old_beta.loc;
p->v = old_beta.v;
}
else if ( j>i ) // empty string
{
p = pos_create();
p->loc = 0;
p->v = root;
}
else if ( j==0 ) // entire string
{
p = pos_create();
p->loc = i;
p->v = f;
}
else // walk across tree
{
node *v = last.v;
int len = last.loc-node_start(last.v)+1;
path *q = path_create( node_start(v), len );
v = node_parent( v );
while ( v != root && node_link(v)==NULL )
{
path_prepend( q, node_len(v) );
v = node_parent( v );
}
if ( v != root )
{
v = node_link( v );
p = walk_down( v, q );
}
else
{
path_dispose( q );
p = walk_down( root, path_create(j,i-j+1) );
}
}
last = *p;
return p;
}
static struct udev_device *handle_usb(struct udev_device *parent, char **path)
{
const char *devtype;
const char *str;
const char *port;
devtype = udev_device_get_devtype(parent);
if (devtype == NULL || strcmp(devtype, "usb_interface") != 0)
return parent;
str = udev_device_get_sysname(parent);
port = strchr(str, '-');
if (port == NULL)
return parent;
port++;
parent = skip_subsystem(parent, "usb");
path_prepend(path, "usb-0:%s", port);
return parent;
}
static struct udev_device *handle_scsi(struct udev_device *parent, char **path)
{
const char *devtype;
const char *name;
const char *id;
devtype = udev_device_get_devtype(parent);
if (devtype == NULL || strcmp(devtype, "scsi_device") != 0)
return parent;
/* firewire */
id = udev_device_get_sysattr_value(parent, "ieee1394_id");
if (id != NULL) {
parent = skip_subsystem(parent, "scsi");
path_prepend(path, "ieee1394-0x%s", id);
goto out;
}
/* lousy scsi sysfs does not have a "subsystem" for the transport */
name = udev_device_get_syspath(parent);
if (strstr(name, "/rport-") != NULL) {
parent = handle_scsi_fibre_channel(parent, path);
goto out;
}
if (strstr(name, "/end_device-") != NULL) {
parent = handle_scsi_sas(parent, path);
goto out;
}
if (strstr(name, "/session") != NULL) {
parent = handle_scsi_iscsi(parent, path);
goto out;
}
parent = handle_scsi_default(parent, path);
out:
return parent;
}
int main(int argc, char **argv)
{
static const struct option options[] = {
{ "debug", no_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{}
};
struct udev *udev;
struct udev_device *dev;
struct udev_device *parent;
char syspath[UTIL_PATH_SIZE];
const char *devpath;
char *path;
char *path_suffix;
int rc = 1;
udev = udev_new();
if (udev == NULL)
goto exit;
udev_log_init("path_id");
udev_set_log_fn(udev, log_fn);
while (1) {
int option;
option = getopt_long(argc, argv, "dh", options, NULL);
if (option == -1)
break;
switch (option) {
case 'd':
debug = 1;
if (udev_get_log_priority(udev) < LOG_INFO)
udev_set_log_priority(udev, LOG_INFO);
break;
case 'h':
printf("Usage: path_id [--debug] [--help] <devpath>\n"
" --debug print debug information\n"
" --help print this help text\n\n");
default:
rc = 1;
goto exit;
}
}
devpath = argv[optind];
if (devpath == NULL) {
fprintf(stderr, "No device specified\n");
rc = 2;
goto exit;
}
util_strscpyl(syspath, sizeof(syspath), udev_get_sys_path(udev), devpath, NULL);
dev = udev_device_new_from_syspath(udev, syspath);
if (dev == NULL) {
fprintf(stderr, "unable to access '%s'\n", devpath);
rc = 3;
goto exit;
}
path = NULL;
path_suffix = NULL;
/* S390 ccw bus */
parent = udev_device_get_parent_with_subsystem_devtype(dev, "ccw", NULL);
if (parent != NULL) {
handle_ccw(parent, dev, &path);
goto out;
}
/* walk up the chain of devices and compose path */
parent = dev;
while (parent != NULL) {
const char *subsys;
subsys = udev_device_get_subsystem(parent);
if (subsys == NULL) {
;
} else if (strcmp(subsys, "scsi_tape") == 0) {
handle_scsi_tape(parent, &path_suffix);
} else if (strcmp(subsys, "scsi") == 0) {
parent = handle_scsi(parent, &path);
} else if (strcmp(subsys, "cciss") == 0) {
handle_cciss(parent, &path);
} else if (strcmp(subsys, "usb") == 0) {
parent = handle_usb(parent, &path);
} else if (strcmp(subsys, "serio") == 0) {
path_prepend(&path, "serio-%s", udev_device_get_sysnum(parent));
parent = skip_subsystem(parent, "serio");
} else if (strcmp(subsys, "pci") == 0) {
path_prepend(&path, "pci-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "pci");
} else if (strcmp(subsys, "platform") == 0) {
path_prepend(&path, "platform-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "platform");
} else if (strcmp(subsys, "xen") == 0) {
path_prepend(&path, "xen-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "xen");
} else if (strcmp(subsys, "virtio") == 0) {
path_prepend(&path, "virtio-pci-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "virtio");
}
parent = udev_device_get_parent(parent);
}
out:
if (path != NULL) {
if (path_suffix != NULL) {
printf("ID_PATH=%s%s\n", path, path_suffix);
free(path_suffix);
} else {
printf("ID_PATH=%s\n", path);
}
free(path);
rc = 0;
}
udev_device_unref(dev);
exit:
udev_unref(udev);
udev_log_close();
return rc;
}
static struct udev_device *handle_scsi_default(struct udev_device *parent, char **path)
{
struct udev_device *hostdev;
int host, bus, target, lun;
const char *name;
char *base;
char *pos;
DIR *dir;
struct dirent *dent;
int basenum;
hostdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_host");
if (hostdev == NULL)
return NULL;
name = udev_device_get_sysname(parent);
if (sscanf(name, "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4)
return NULL;
/* rebase host offset to get the local relative number */
basenum = -1;
base = strdup(udev_device_get_syspath(hostdev));
if (base == NULL)
return NULL;
pos = strrchr(base, '/');
if (pos == NULL) {
parent = NULL;
goto out;
}
pos[0] = '\0';
dir = opendir(base);
if (dir == NULL) {
parent = NULL;
goto out;
}
for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
char *rest;
int i;
if (dent->d_name[0] == '.')
continue;
if (dent->d_type != DT_DIR && dent->d_type != DT_LNK)
continue;
if (strncmp(dent->d_name, "host", 4) != 0)
continue;
i = strtoul(&dent->d_name[4], &rest, 10);
if (rest[0] != '\0')
continue;
if (basenum == -1 || i < basenum)
basenum = i;
}
closedir(dir);
if (basenum == -1) {
parent = NULL;
goto out;
}
host -= basenum;
path_prepend(path, "scsi-%u:%u:%u:%u", host, bus, target, lun);
out:
free(base);
return hostdev;
}
void config_load( const char* name, hash_t filter_section, bool built_in, bool overwrite )
{
/*lint --e{838} Safety null assign all pointers for all preprocessor paths */
/*lint --e{750} Unused macros in some paths */
#define NUM_SEARCH_PATHS 10
#define ANDROID_ASSET_PATH_INDEX 5
char* sub_exe_path = 0;
char* exe_parent_path = 0;
char* exe_processed_path = 0;
char* abs_exe_parent_path = 0;
char* abs_exe_processed_path = 0;
char* bundle_path = 0;
char* home_dir = 0;
char* cmdline_path = 0;
char* cwd_config_path = 0;
const char* paths[NUM_SEARCH_PATHS];
#if !FOUNDATION_PLATFORM_FAMILY_MOBILE
const char* const* cmd_line;
int icl, clsize;
#endif
int start_path, i, j;
const char buildsuffix[4][9] = { "/debug", "/release", "/profile", "/deploy" };
const char platformsuffix[7][14] = { "/win32", "/win64", "/osx", "/ios", "/android", "/raspberrypi", "/unknown" };
const char binsuffix[1][5] = { "/bin" };
FOUNDATION_ASSERT( name );
sub_exe_path = path_merge( environment_executable_directory(), "config" );
exe_parent_path = path_merge( environment_executable_directory(), "../config" );
abs_exe_parent_path = path_make_absolute( exe_parent_path );
exe_processed_path = string_clone( environment_executable_directory() );
for( i = 0; i < 4; ++i )
{
if( string_ends_with( exe_processed_path, buildsuffix[i] ) )
{
exe_processed_path[ string_length( exe_processed_path ) - string_length( buildsuffix[i] ) ] = 0;
break;
}
}
for( i = 0; i < 7; ++i )
{
if( string_ends_with( exe_processed_path, platformsuffix[i] ) )
{
exe_processed_path[ string_length( exe_processed_path ) - string_length( platformsuffix[i] ) ] = 0;
break;
}
}
for( i = 0; i < 1; ++i )
{
if( string_ends_with( exe_processed_path, binsuffix[i] ) )
{
exe_processed_path[ string_length( exe_processed_path ) - string_length( binsuffix[i] ) ] = 0;
break;
}
}
exe_processed_path = path_append( exe_processed_path, "config" );
abs_exe_processed_path = path_make_absolute( exe_processed_path );
paths[0] = environment_executable_directory();
paths[1] = sub_exe_path;
paths[2] = abs_exe_parent_path;
paths[3] = abs_exe_processed_path;
#if FOUNDATION_PLATFORM_FAMILY_DESKTOP && !BUILD_DEPLOY
paths[4] = environment_initial_working_directory();
#else
paths[4] = 0;
#endif
#if FOUNDATION_PLATFORM_APPLE
bundle_path = path_merge( environment_executable_directory(), "../Resources/config" );
paths[5] = bundle_path;
#elif FOUNDATION_PLATFORM_ANDROID
paths[5] = "/config";
#else
paths[5] = 0;
#endif
#if FOUNDATION_PLATFORM_FAMILY_DESKTOP
paths[6] = environment_current_working_directory();
#else
paths[6] = 0;
#endif
paths[7] = 0;
paths[8] = 0;
string_deallocate( exe_parent_path );
string_deallocate( exe_processed_path );
#if FOUNDATION_PLATFORM_FAMILY_DESKTOP
cwd_config_path = path_merge( environment_current_working_directory(), "config" );
paths[7] = cwd_config_path;
cmd_line = environment_command_line();
/*lint -e{850} We modify loop var to skip extra arg */
for( icl = 0, clsize = array_size( cmd_line ); icl < clsize; ++icl )
{
/*lint -e{613} array_size( cmd_line ) in loop condition does the null pointer guard */
if( string_equal_substr( cmd_line[icl], "--configdir", 11 ) )
{
if( string_equal_substr( cmd_line[icl], "--configdir=", 12 ) )
{
paths[8] = cmdline_path = string_substr( cmd_line[icl], 12, STRING_NPOS );
}
else if( icl < ( clsize - 1 ) )
{
paths[8] = cmdline_path = string_clone( cmd_line[++icl] );
}
}
}
#endif
start_path = 0;
if( !built_in )
{
#if FOUNDATION_PLATFORM_WINDOWS
home_dir = path_merge( environment_home_directory(), environment_application()->config_dir );
#elif FOUNDATION_PLATFORM_LINUX || FOUNDATION_PLATFORM_MACOSX
home_dir = path_prepend( string_concat( ".", environment_application()->config_dir ), environment_home_directory() );
#endif
if( home_dir )
paths[9] = home_dir;
start_path = 9;
}
else
{
paths[9] = 0;
}
for( i = start_path; i < NUM_SEARCH_PATHS; ++i )
{
char* filename;
stream_t* istream;
bool path_already_searched = false;
if( !paths[i] )
continue;
for( j = start_path; j < i; ++j )
{
if( paths[j] && string_equal( paths[j], paths[i] ) )
{
path_already_searched = true;
break;
}
}
if( path_already_searched )
continue;
//TODO: Support loading configs from virtual file system (i.e in zip/other packages)
filename = string_append( path_merge( paths[i], name ), ".ini" );
istream = 0;
#if FOUNDATION_PLATFORM_ANDROID
if( i == ANDROID_ASSET_PATH_INDEX )
istream = asset_stream_open( filename, STREAM_IN );
else
#endif
istream = stream_open( filename, STREAM_IN );
if( istream )
{
config_parse( istream, filter_section, overwrite );
stream_deallocate( istream );
}
string_deallocate( filename );
if( built_in )
{
const char* FOUNDATION_PLATFORM_name =
#if FOUNDATION_PLATFORM_WINDOWS
"windows";
#elif FOUNDATION_PLATFORM_LINUX_RASPBERRYPI
"raspberrypi";
#elif FOUNDATION_PLATFORM_LINUX
"linux";
#elif FOUNDATION_PLATFORM_MACOSX
"osx";
#elif FOUNDATION_PLATFORM_IOS
"ios";
#elif FOUNDATION_PLATFORM_ANDROID
"android";
#else
# error Insert platform name
"unknown";
#endif
filename = string_append( path_append( path_merge( paths[i], FOUNDATION_PLATFORM_name ), name ), ".ini" );
#if FOUNDATION_PLATFORM_ANDROID
if( i == ANDROID_ASSET_PATH_INDEX )
istream = asset_stream_open( filename, STREAM_IN );
else
#endif
istream = stream_open( filename, STREAM_IN );
if( istream )
{
config_parse( istream, filter_section, overwrite );
stream_deallocate( istream );
}
string_deallocate( filename );
}
}
string_deallocate( home_dir );
string_deallocate( cmdline_path );
string_deallocate( sub_exe_path );
string_deallocate( abs_exe_processed_path );
string_deallocate( abs_exe_parent_path );
string_deallocate( bundle_path );
string_deallocate( cwd_config_path );
}