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Diffstat (limited to 'namedev.c')
-rw-r--r--namedev.c361
1 files changed, 152 insertions, 209 deletions
diff --git a/namedev.c b/namedev.c
index e502ba1a39..41fefc4bc8 100644
--- a/namedev.c
+++ b/namedev.c
@@ -213,27 +213,27 @@ static void apply_format(struct udevice *udev, unsigned char *string)
dbg("substitute major number '%u'", udev->major);
break;
case 'c':
- if (strlen(udev->callout_value) == 0)
+ if (strlen(udev->program_result) == 0)
break;
if (num) {
/* get part of return string */
- strncpy(temp, udev->callout_value, sizeof(temp));
+ strncpy(temp, udev->program_result, sizeof(temp));
pos2 = temp;
while (num) {
num--;
pos3 = strsep(&pos2, " ");
if (pos3 == NULL) {
- dbg("requested part of callout string not found");
+ dbg("requested part of result string not found");
break;
}
}
if (pos3) {
strcat(pos, pos3);
- dbg("substitute partial callout output '%s'", pos3);
+ dbg("substitute part of result string '%s'", pos3);
}
} else {
- strcat(pos, udev->callout_value);
- dbg("substitute callout output '%s'", udev->callout_value);
+ strcat(pos, udev->program_result);
+ dbg("substitute result string '%s'", udev->program_result);
}
break;
default:
@@ -298,28 +298,7 @@ exit:
return; /* here to prevent compiler warning... */
}
-static int do_ignore(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
-{
- struct config_device *dev;
- struct list_head *tmp;
-
- list_for_each(tmp, &config_device_list) {
- dev = list_entry(tmp, struct config_device, node);
- if (dev->type != IGNORE)
- continue;
-
- dbg("compare name '%s' with '%s'", dev->kernel_name, class_dev->name);
- if (strcmp_pattern(dev->kernel_name, class_dev->name) != 0)
- continue;
-
- dbg("found name, '%s' will be ignored", dev->kernel_name);
-
- return 0;
- }
- return -ENODEV;
-}
-
-static int exec_program(char *path, char *value, int len)
+static int execute_program(char *path, char *value, int len)
{
int retval;
int res;
@@ -332,7 +311,7 @@ static int exec_program(char *path, char *value, int len)
char *args[CALLOUT_MAXARG];
int i;
- dbg("callout to '%s'", path);
+ dbg("executing '%s'", path);
retval = pipe(fds);
if (retval != 0) {
dbg("pipe failed");
@@ -349,7 +328,7 @@ static int exec_program(char *path, char *value, int len)
close(STDOUT_FILENO);
dup(fds[1]); /* dup write side of pipe to STDOUT */
if (strchr(path, ' ')) {
- /* callout with arguments */
+ /* exec with arguments */
pos = path;
for (i=0; i < CALLOUT_MAXARG-1; i++) {
args[i] = strsep(&pos, " ");
@@ -379,11 +358,11 @@ static int exec_program(char *path, char *value, int len)
break;
buffer[res] = '\0';
if (res > len) {
- dbg("callout len %d too short", len);
+ dbg("result len %d too short", len);
retval = -1;
}
if (value_set) {
- dbg("callout value already set");
+ dbg("result value already set");
retval = -1;
} else {
value_set = 1;
@@ -391,7 +370,7 @@ static int exec_program(char *path, char *value, int len)
pos = value + strlen(value)-1;
if (pos[0] == '\n')
pos[0] = '\0';
- dbg("callout returned '%s'", value);
+ dbg("result is '%s'", value);
}
}
close(fds[0]);
@@ -402,46 +381,14 @@ static int exec_program(char *path, char *value, int len)
}
if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
- dbg("callout program status 0x%x", status);
+ dbg("exec program status 0x%x", status);
retval = -1;
}
}
return retval;
}
-static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
-{
- struct config_device *dev;
-
- list_for_each_entry(dev, &config_device_list, node) {
- if (dev->type != CALLOUT)
- continue;
-
- if (dev->bus[0] != '\0') {
- /* as the user specified a bus, we must match it up */
- if (!sysfs_device)
- continue;
- dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
- if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
- continue;
- }
-
- /* substitute anything that needs to be in the program name */
- apply_format(udev, dev->exec_program);
- if (exec_program(dev->exec_program, udev->callout_value, NAME_SIZE))
- continue;
- if (strcmp_pattern(dev->id, udev->callout_value) != 0)
- continue;
- strfieldcpy(udev->name, dev->name);
- strfieldcpy(udev->symlink, dev->symlink);
- dbg("callout returned matching value '%s', '%s' becomes '%s'",
- dev->id, class_dev->name, udev->name);
- return 0;
- }
- return -ENODEV;
-}
-
-static int match_pair(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, struct sysfs_pair *pair)
+static int compare_sysfs_attribute(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, struct sysfs_pair *pair)
{
struct sysfs_attribute *tmpattr = NULL;
char *c;
@@ -461,7 +408,6 @@ static int match_pair(struct sysfs_class_device *class_dev, struct sysfs_device
if (tmpattr)
goto label_found;
}
-
return -ENODEV;
label_found:
@@ -478,53 +424,26 @@ label_found:
return 0;
}
-static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_sysfs_pairs(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
struct sysfs_pair *pair;
- struct config_device *dev;
int i;
- int match;
-
- list_for_each_entry(dev, &config_device_list, node) {
- if (dev->type != LABEL)
- continue;
-
- if (dev->bus[0] != '\0') {
- /* as the user specified a bus, we must match it up */
- if (!sysfs_device)
- continue;
- dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
- if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
- continue;
- }
- match = 1;
- for (i = 0; i < MAX_SYSFS_PAIRS; ++i) {
- pair = &dev->sysfs_pair[i];
- if ((pair->file[0] == '\0') || (pair->value[0] == '\0'))
- break;
- if (match_pair(class_dev, sysfs_device, pair) != 0) {
- match = 0;
- break;
- }
+ for (i = 0; i < MAX_SYSFS_PAIRS; ++i) {
+ pair = &dev->sysfs_pair[i];
+ if ((pair->file[0] == '\0') || (pair->value[0] == '\0'))
+ break;
+ if (compare_sysfs_attribute(class_dev, sysfs_device, pair) != 0) {
+ dbg("sysfs attribute doesn't match");
+ return -ENODEV;
}
- if (match == 0)
- continue;
-
- /* found match */
- strfieldcpy(udev->name, dev->name);
- strfieldcpy(udev->symlink, dev->symlink);
- dbg("found matching attribute, '%s' becomes '%s' ",
- class_dev->name, udev->name);
-
- return 0;
}
- return -ENODEV;
+
+ return 0;
}
-static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_id(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
- struct config_device *dev;
char path[SYSFS_PATH_MAX];
int found;
char *temp = NULL;
@@ -533,107 +452,56 @@ static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev,
if (!sysfs_device)
return -ENODEV;
- list_for_each_entry(dev, &config_device_list, node) {
- if (dev->type != NUMBER)
- continue;
-
- dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
- if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
- continue;
-
- found = 0;
- strfieldcpy(path, sysfs_device->path);
+ found = 0;
+ strfieldcpy(path, sysfs_device->path);
+ temp = strrchr(path, '/');
+ dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
+ if (strstr(temp, dev->id) != NULL) {
+ found = 1;
+ } else {
+ *temp = 0x00;
temp = strrchr(path, '/');
dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
- if (strstr(temp, dev->id) != NULL) {
+ if (strstr(temp, dev->id) != NULL)
found = 1;
- } else {
- *temp = 0x00;
- temp = strrchr(path, '/');
- dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
- if (strstr(temp, dev->id) != NULL)
- found = 1;
- }
- if (!found)
- continue;
- strfieldcpy(udev->name, dev->name);
- strfieldcpy(udev->symlink, dev->symlink);
- dbg("found matching id '%s', '%s' becomes '%s'",
- dev->id, class_dev->name, udev->name);
- return 0;
}
- return -ENODEV;
+ if (!found) {
+ dbg("id doesn't match");
+ return -ENODEV;
+ }
+
+ return 0;
}
-static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_place(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
- struct config_device *dev;
char path[SYSFS_PATH_MAX];
int found;
char *temp = NULL;
- /* we have to have a sysfs device for TOPOLOGY to work */
+ /* we have to have a sysfs device for NUMBER to work */
if (!sysfs_device)
return -ENODEV;
- list_for_each_entry(dev, &config_device_list, node) {
- if (dev->type != TOPOLOGY)
- continue;
-
- dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
- if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
- continue;
-
- found = 0;
- strfieldcpy(path, sysfs_device->path);
+ found = 0;
+ strfieldcpy(path, sysfs_device->path);
+ temp = strrchr(path, '/');
+ dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
+ if (strstr(temp, dev->place) != NULL) {
+ found = 1;
+ } else {
+ *temp = 0x00;
temp = strrchr(path, '/');
dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
- if (strstr(temp, dev->place) != NULL) {
+ if (strstr(temp, dev->place) != NULL)
found = 1;
- } else {
- *temp = 0x00;
- temp = strrchr(path, '/');
- dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
- if (strstr(temp, dev->place) != NULL)
- found = 1;
- }
- if (!found)
- continue;
-
- strfieldcpy(udev->name, dev->name);
- strfieldcpy(udev->symlink, dev->symlink);
- dbg("found matching place '%s', '%s' becomes '%s'",
- dev->place, class_dev->name, udev->name);
- return 0;
}
- return -ENODEV;
-}
-
-static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
-{
- struct config_device *dev;
-
- list_for_each_entry(dev, &config_device_list, node) {
- if (dev->type != REPLACE)
- continue;
-
- dbg("compare name '%s' with '%s'", dev->kernel_name, class_dev->name);
- if (strcmp_pattern(dev->kernel_name, class_dev->name) != 0)
- continue;
-
- strfieldcpy(udev->name, dev->name);
- strfieldcpy(udev->symlink, dev->symlink);
- dbg("found name, '%s' becomes '%s'", dev->kernel_name, udev->name);
-
- return 0;
+ if (!found) {
+ dbg("place doesn't match");
+ return -ENODEV;
}
- return -ENODEV;
-}
-static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
-{
- /* heh, this is pretty simple... */
- strfieldcpy(udev->name, class_dev->name);
+ return 0;
}
static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_dev)
@@ -725,7 +593,7 @@ exit:
int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *udev)
{
struct sysfs_device *sysfs_device = NULL;
- int retval = 0;
+ struct config_device *dev;
struct perm_device *perm;
char *pos;
@@ -752,34 +620,109 @@ int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *ud
strfieldcpy(udev->kernel_number, pos);
dbg("kernel_number='%s'", udev->kernel_number);
- /* rules are looked at in priority order */
- retval = do_ignore(class_dev, udev, sysfs_device);
- if (retval == 0) {
- dbg("name, '%s' is being ignored", class_dev->name);
- return 1;
- }
+ /* look for a matching rule to apply */
+ list_for_each_entry(dev, &config_device_list, node) {
+ dbg("process rule");
- retval = do_callout(class_dev, udev, sysfs_device);
- if (retval == 0)
- goto found;
+ /* check for matching bus value */
+ if (dev->bus[0] != '\0') {
+ if (sysfs_device == NULL) {
+ dbg("device has no bus");
+ continue;
+ }
+ dbg("check for " FIELD_BUS " dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+ if (strcmp_pattern(dev->bus, sysfs_device->bus) != 0) {
+ dbg(FIELD_BUS " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_BUS " matches");
+ }
+ }
- retval = do_label(class_dev, udev, sysfs_device);
- if (retval == 0)
- goto found;
+ /* check for matching kernel name*/
+ if (dev->kernel[0] != '\0') {
+ dbg("check for " FIELD_KERNEL " dev->kernel='%s' class_dev->name='%s'", dev->kernel, class_dev->name);
+ if (strcmp_pattern(dev->kernel, class_dev->name) != 0) {
+ dbg(FIELD_KERNEL " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_KERNEL " matches");
+ }
+ }
- retval = do_number(class_dev, udev, sysfs_device);
- if (retval == 0)
- goto found;
+ /* check for matching bus id */
+ if (dev->id[0] != '\0') {
+ dbg("check " FIELD_ID);
+ if (match_id(dev, class_dev, sysfs_device) != 0) {
+ dbg(FIELD_ID " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_ID " matches");
+ }
+ }
- retval = do_topology(class_dev, udev, sysfs_device);
- if (retval == 0)
- goto found;
+ /* check for matching place of device */
+ if (dev->place[0] != '\0') {
+ dbg("check " FIELD_PLACE);
+ if (match_place(dev, class_dev, sysfs_device) != 0) {
+ dbg(FIELD_PLACE " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_PLACE " matches");
+ }
+ }
- retval = do_replace(class_dev, udev, sysfs_device);
- if (retval == 0)
+ /* check for matching sysfs pairs */
+ if (dev->sysfs_pair[0].file[0] != '\0') {
+ dbg("check " FIELD_SYSFS " pairs");
+ if (match_sysfs_pairs(dev, class_dev, sysfs_device) != 0) {
+ dbg(FIELD_SYSFS " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_SYSFS " matches");
+ }
+ }
+
+ /* execute external program */
+ if (dev->program[0] != '\0') {
+ dbg("check " FIELD_PROGRAM);
+ apply_format(udev, dev->program);
+ if (execute_program(dev->program, udev->program_result, NAME_SIZE) != 0) {
+ dbg(FIELD_PROGRAM " returned nozero");
+ continue;
+ } else {
+ dbg(FIELD_PROGRAM " returned successful");
+ }
+ }
+
+ /* check for matching result of external program */
+ if (dev->result[0] != '\0') {
+ dbg("check for " FIELD_RESULT
+ " dev->result='%s', udev->program_result='%s'",
+ dev->result, udev->program_result);
+ if (strcmp_pattern(dev->result, udev->program_result) != 0) {
+ dbg(FIELD_RESULT " is not matching");
+ continue;
+ } else {
+ dbg(FIELD_RESULT " matches");
+ }
+ }
+
+ /* check if we are instructed to ignore this device */
+ if (dev->name[0] == '\0') {
+ dbg("instructed to ignore this device");
+ return -1;
+ }
+
+ /* Yup, this rule belongs to us! */
+ dbg("found matching rule, '%s' becomes '%s'", dev->kernel, udev->name);
+ strfieldcpy(udev->name, dev->name);
+ strfieldcpy(udev->symlink, dev->symlink);
goto found;
+ }
- do_kernelname(class_dev, udev);
+ /* no rule was found so we use the kernel name */
+ strfieldcpy(udev->name, class_dev->name);
goto done;
found:
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-15 05:28:26 +0000