X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=namedev_parse.c;h=e6575fa108431958e33d0a283b2c7bd20935f4ba;hp=4526203253c6c443afd5c84214b00f3f0a0660ca;hb=58b030657ae7e3e7acf7af534c63f2b081576fbc;hpb=bc64a25fd223d8e0cbc0a4aa2ef8cc03e1d60562 diff --git a/namedev_parse.c b/namedev_parse.c index 452620325..e6575fa10 100644 --- a/namedev_parse.c +++ b/namedev_parse.c @@ -3,7 +3,7 @@ * * Userspace devfs * - * Copyright (C) 2003 Greg Kroah-Hartman + * Copyright (C) 2003,2004 Greg Kroah-Hartman * * * This program is free software; you can redistribute it and/or modify it @@ -21,8 +21,10 @@ * */ -/* define this to enable parsing debugging */ +#ifdef DEBUG +/* define this to enable parsing debugging also */ /* #define DEBUG_PARSER */ +#endif #include #include @@ -34,6 +36,7 @@ #include #include "udev.h" +#include "logging.h" #include "namedev.h" static int add_config_dev(struct config_device *new_dev) @@ -49,80 +52,23 @@ static int add_config_dev(struct config_device *new_dev) return 0; } -int get_pair(char **orig_string, char **left, char **right) -{ - char *temp; - char *string = *orig_string; - - if (!string) - return -ENODEV; - - /* eat any whitespace */ - while (isspace(*string) || *string == ',') - ++string; - - /* split based on '=' */ - temp = strsep(&string, "="); - *left = temp; - if (!string) - return -ENODEV; - - /* take the right side and strip off the '"' */ - while (isspace(*string)) - ++string; - if (*string == '"') - ++string; - else - return -ENODEV; - - temp = strsep(&string, "\""); - if (!string || *temp == '\0') - return -ENODEV; - *right = temp; - *orig_string = string; - - return 0; -} - void dump_config_dev(struct config_device *dev) { - switch (dev->type) { - case KERNEL_NAME: - dbg_parse("KERNEL name='%s'", dev->name); - break; - case LABEL: - dbg_parse("LABEL name='%s', bus='%s', sysfs_file[0]='%s', sysfs_value[0]='%s'", - dev->name, dev->bus, dev->sysfs_pair[0].file, dev->sysfs_pair[0].value); - break; - case NUMBER: - dbg_parse("NUMBER name='%s', bus='%s', id='%s'", - dev->name, dev->bus, dev->id); - break; - case TOPOLOGY: - dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s'", - dev->name, dev->bus, dev->place); - break; - case REPLACE: - dbg_parse("REPLACE name=%s, kernel_name=%s", - dev->name, dev->kernel_name); - break; - case CALLOUT: - dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s'", - dev->name, dev->bus, dev->exec_program, dev->id); - break; - default: - dbg_parse("unknown type of method"); - } + /*FIXME dump all sysfs's */ + dbg_parse("name='%s', symlink='%s', bus='%s', place='%s', id='%s', " + "sysfs_file[0]='%s', sysfs_value[0]='%s', " + "kernel='%s', program='%s', result='%s'", + dev->name, dev->symlink, dev->bus, dev->place, dev->id, + dev->sysfs_pair[0].file, dev->sysfs_pair[0].value, + dev->kernel, dev->program, dev->result); } void dump_config_dev_list(void) { - struct list_head *tmp; + struct config_device *dev; - list_for_each(tmp, &config_device_list) { - struct config_device *dev = list_entry(tmp, struct config_device, node); + list_for_each_entry(dev, &config_device_list, node) dump_config_dev(dev); - } } void dump_perm_dev(struct perm_device *dev) @@ -133,15 +79,12 @@ void dump_perm_dev(struct perm_device *dev) void dump_perm_dev_list(void) { - struct list_head *tmp; + struct perm_device *dev; - list_for_each(tmp, &perm_device_list) { - struct perm_device *dev = list_entry(tmp, struct perm_device, node); + list_for_each_entry(dev, &perm_device_list, node) dump_perm_dev(dev); - } } - int namedev_init_rules(void) { char line[255]; @@ -150,6 +93,7 @@ int namedev_init_rules(void) char *temp2; char *temp3; FILE *fd; + int program_given = 0; int retval = 0; struct config_device dev; @@ -176,7 +120,7 @@ int namedev_init_rules(void) ++temp; /* empty line? */ - if ((*temp == 0x00) || (*temp == 0x0a)) + if ((*temp == '\0') || (*temp == '\n')) continue; /* see if this is a comment */ @@ -185,40 +129,9 @@ int namedev_init_rules(void) memset(&dev, 0x00, sizeof(struct config_device)); - /* get the method */ - temp2 = strsep(&temp, ","); - - if (strcasecmp(temp2, TYPE_LABEL) == 0) { - dev.type = LABEL; - goto keys; - } - - if (strcasecmp(temp2, TYPE_NUMBER) == 0) { - dev.type = NUMBER; - goto keys; - } - - if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) { - dev.type = TOPOLOGY; - goto keys; - } - - if (strcasecmp(temp2, TYPE_REPLACE) == 0) { - dev.type = REPLACE; - goto keys; - } - - if (strcasecmp(temp2, TYPE_CALLOUT) == 0) { - dev.type = CALLOUT; - goto keys; - } - - dbg_parse("unknown type of method '%s'", temp2); - goto error; -keys: /* get all known keys */ while (1) { - retval = get_pair(&temp, &temp2, &temp3); + retval = parse_get_pair(&temp, &temp2, &temp3); if (retval) break; @@ -259,12 +172,18 @@ keys: } if (strcasecmp(temp2, FIELD_KERNEL) == 0) { - strfieldcpy(dev.kernel_name, temp3); + strfieldcpy(dev.kernel, temp3); continue; } if (strcasecmp(temp2, FIELD_PROGRAM) == 0) { - strfieldcpy(dev.exec_program, temp3); + program_given = 1; + strfieldcpy(dev.program, temp3); + continue; + } + + if (strcasecmp(temp2, FIELD_RESULT) == 0) { + strfieldcpy(dev.result, temp3); continue; } @@ -278,71 +197,33 @@ keys: continue; } - dbg_parse("unknown type of field '%s'", temp2); + dbg("unknown type of field '%s'", temp2); + dbg("You might be using a rules file in the old format, please fix."); + goto error; } - /* check presence of keys according to method type */ - switch (dev.type) { - case LABEL: - dbg_parse(TYPE_LABEL " name='%s', bus='%s', " - "sysfs_file[0]='%s', sysfs_value[0]='%s', symlink='%s'", - dev.name, dev.bus, dev.sysfs_pair[0].file, - dev.sysfs_pair[0].value, dev.symlink); - if ((*dev.name == '\0') || - (*dev.bus == '\0') || - (*dev.sysfs_pair[0].file == '\0') || - (*dev.sysfs_pair[0].value == '\0')) - goto error; - break; - case NUMBER: - dbg_parse(TYPE_NUMBER "name='%s', bus='%s', id='%s', symlink='%s'", - dev.name, dev.bus, dev.id, dev.symlink); - if ((*dev.name == '\0') || - (*dev.bus == '\0') || - (*dev.id == '\0')) - goto error; - break; - case TOPOLOGY: - dbg_parse(TYPE_TOPOLOGY "name='%s', bus='%s', " - "place='%s', symlink='%s'", - dev.name, dev.bus, dev.place, dev.symlink); - if ((*dev.name == '\0') || - (*dev.bus == '\0') || - (*dev.place == '\0')) - goto error; - break; - case REPLACE: - dbg_parse(TYPE_REPLACE "name='%s', kernel_name='%s', symlink='%s'", - dev.name, dev.kernel_name, dev.symlink); - if ((*dev.name == '\0') || - (*dev.kernel_name == '\0')) - goto error; - break; - case CALLOUT: - dbg_parse(TYPE_CALLOUT "name='%s', bus='%s', program='%s', " - "id='%s', symlink='%s'", - dev.name, dev.bus, dev.exec_program, - dev.id, dev.symlink); - if ((*dev.name == '\0') || - (*dev.bus == '\0') || - (*dev.id == '\0') || - (*dev.exec_program == '\0')) - goto error; - break; - default: - dbg_parse("unknown type of method"); + /* simple plausibility check for given keys */ + if ((dev.sysfs_pair[0].file[0] == '\0') ^ + (dev.sysfs_pair[0].value[0] == '\0')) { + dbg("inconsistency in SYSFS_ key"); goto error; } + if ((dev.result[0] != '\0') && (program_given == 0)) { + dbg("RESULT is only useful when PROGRAM called in any rule before"); + goto error; + } + + dev.config_line = lineno; retval = add_config_dev(&dev); if (retval) { dbg("add_config_dev returned with error %d", retval); continue; +error: + dbg("%s:%d:%d: parse error, rule skipped", + udev_rules_filename, lineno, temp - line); } } -error: - dbg_parse("%s:%d:%Zd: field missing or parse error", udev_rules_filename, - lineno, temp - line); exit: fclose(fd); return retval; @@ -378,7 +259,7 @@ int namedev_init_permissions(void) ++temp; /* empty line? */ - if ((*temp == 0x00) || (*temp == 0x0a)) + if ((*temp == '\0') || (*temp == '\n')) continue; /* see if this is a comment */ @@ -407,7 +288,7 @@ int namedev_init_permissions(void) dbg("cannot parse line '%s'", line); continue; } - strncpy(dev.group, temp2, sizeof(dev.owner)); + strncpy(dev.group, temp2, sizeof(dev.group)); if (!temp) { dbg("cannot parse line: %s", line); @@ -428,6 +309,5 @@ int namedev_init_permissions(void) exit: fclose(fd); return retval; -} - +}