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gradm_parse.c
1203 lines (1028 loc) · 29.3 KB
/
gradm_parse.c
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/*
* Copyright (C) 2002-2015 Bradley Spengler, Open Source Security, Inc.
* http://www.grsecurity.net spender@grsecurity.net
*
* This file is part of gradm.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "gradm.h"
extern FILE *gradmin;
extern int gradmparse(void);
void set_role_umask(struct role_acl *role, u_int16_t umask)
{
role->umask = umask;
}
char *strip_trailing_slash(char *filename)
{
unsigned int file_len = strlen(filename);
if (file_len > 1 && filename[file_len - 1] == '/')
filename[file_len - 1] = '\0';
if (file_len >= PATH_MAX) {
fprintf(stderr, "Filename too long on line %lu of file %s.\n",
lineno, current_acl_file);
exit(EXIT_FAILURE);
}
return filename;
}
static int get_id_from_role_name(const char *rolename, u_int16_t type, int *retid)
{
unsigned long the_id = 0;
struct passwd *pwd;
struct group *grp;
char *endptr;
if (type & GR_ROLE_USER) {
pwd = getpwnam(rolename);
if (!pwd) {
/* now try it as a uid */
the_id = strtoul(rolename, &endptr, 10);
if (*endptr == '\0')
pwd = getpwuid((int)the_id);
if (the_id > INT_MAX || *endptr != '\0') {
fprintf(stderr, "Warning: User %s on line %lu of %s "
"is invalid.\n", rolename,
lineno, current_acl_file);
return 1;
}
}
if (pwd)
the_id = pwd->pw_uid;
/* else, the_id obtained above via strtoul is valid */
} else if (type & GR_ROLE_GROUP) {
grp = getgrnam(rolename);
if (!grp) {
/* now try it as a gid */
the_id = strtoul(rolename, &endptr, 10);
if (*endptr == '\0')
grp = getgrgid((int)the_id);
if (the_id > INT_MAX || *endptr != '\0') {
fprintf(stderr, "Warning: Group %s on line %lu of %s "
"is invalid.\n", rolename,
lineno, current_acl_file);
return 1;
}
}
if (grp)
the_id = grp->gr_gid;
/* else, the_id obtained above via strtoul is valid */
}
*retid = (int)the_id;
return 0;
}
void
add_id_transition(struct proc_acl *subject, const char *idname, int usergroup, int allowdeny)
{
int i;
int id;
int ret;
if (usergroup == GR_ID_USER) {
if ((subject->user_trans_type | allowdeny) == (GR_ID_ALLOW | GR_ID_DENY)) {
fprintf(stderr, "Error on line %lu of %s. You cannot use "
"both user_transition_allow and user_transition_deny.\n"
"The RBAC system will not be allowed to be enabled until "
"this error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
subject->user_trans_type |= allowdeny;
ret = get_id_from_role_name(idname, GR_ROLE_USER, &id);
if (ret)
return;
/* dupecheck */
for (i = 0; i < subject->user_trans_num; i++)
if (subject->user_transitions[i] == id)
return;
/* increment pointer count upon allocation of user transition list */
if (subject->user_transitions == NULL)
num_pointers++;
subject->user_trans_num++;
subject->user_transitions = (uid_t *)gr_realloc(subject->user_transitions, subject->user_trans_num * sizeof(uid_t));
subject->user_transitions[subject->user_trans_num - 1] = id;
} else if (usergroup == GR_ID_GROUP) {
if ((subject->group_trans_type | allowdeny) == (GR_ID_ALLOW | GR_ID_DENY)) {
fprintf(stderr, "Error on line %lu of %s. You cannot use "
"both group_transition_allow and group_transition_deny.\n"
"The RBAC system will not be allowed to be enabled until "
"this error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
subject->group_trans_type |= allowdeny;
ret = get_id_from_role_name(idname, GR_ROLE_GROUP, &id);
if (ret)
return;
/* dupecheck */
for (i = 0; i < subject->group_trans_num; i++)
if (subject->group_transitions[i] == id)
return;
/* increment pointer count upon allocation of group transition list */
if (subject->group_transitions == NULL)
num_pointers++;
subject->group_trans_num++;
subject->group_transitions = (gid_t *)gr_realloc(subject->group_transitions, subject->group_trans_num * sizeof(gid_t));
subject->group_transitions[subject->group_trans_num - 1] = id;
}
return;
}
static int
is_role_dupe(struct role_acl *role, const char *rolename, const u_int16_t type)
{
struct role_acl *tmp;
int id = 0;
int ret;
int i;
if ((type & GR_ROLE_ISID) || ((type & (GR_ROLE_USER | GR_ROLE_GROUP)) && !(type & GR_ROLE_DOMAIN))) {
ret = get_id_from_role_name(rolename, type, &id);
if (ret)
return 0;
}
for_each_role(tmp, role) {
if ((tmp->roletype & (GR_ROLE_USER | GR_ROLE_GROUP | GR_ROLE_SPECIAL) & type) && !strcmp(tmp->rolename, rolename))
return 1;
if ((tmp->roletype & GR_ROLE_DOMAIN) && (type & (GR_ROLE_USER | GR_ROLE_GROUP))) {
for (i = 0; i < tmp->domain_child_num; i++) {
if (tmp->domain_children[i] == id)
return 1;
}
}
}
return 0;
}
void
add_domain_child(struct role_acl *role, const char *idname)
{
int ret, id;
if (!(role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP))) {
// should never get here
fprintf(stderr, "Unhandled exception 1.\n");
exit(EXIT_FAILURE);
}
if (is_role_dupe(current_role, idname, role->roletype | GR_ROLE_ISID)) {
fprintf(stderr, "Duplicate role %s on line %lu of %s.\n"
"The RBAC system will not be allowed to be "
"enabled until this error is fixed.\n",
idname, lineno, current_acl_file);
exit(EXIT_FAILURE);
}
ret = get_id_from_role_name(idname, role->roletype, &id);
if (ret)
return;
/* reason for this is that in the kernel, the hash table which is keyed by UID/GID
has a size dependent on the number of roles. Since we want to fake a domain
as being a real role for each of those users/groups by providing a pointer
to the domain for each user/group, we need to count each of these against the
role count */
num_domain_children++;
/* increment pointer count upon allocation of domain list */
if (role->domain_children == NULL)
num_pointers++;
role->domain_child_num++;
role->domain_children = (gid_t *)gr_realloc(role->domain_children, role->domain_child_num * sizeof(gid_t));
*(role->domain_children + role->domain_child_num - 1) = id;
return;
}
void
add_role_transition(struct role_acl *role, const char *rolename)
{
struct role_transition **roletpp;
struct role_transition *roletp;
/* one for transition, one for name */
num_pointers += 2;
roletp = (struct role_transition *) gr_alloc(sizeof (struct role_transition));
roletpp = &(role->transitions);
if (*roletpp)
(*roletpp)->next = roletp;
roletp->prev = *roletpp;
roletp->rolename = rolename;
*roletpp = roletp;
return;
}
void add_symlink(struct proc_acl *subj, struct file_acl *obj)
{
struct symlink *sym = (struct symlink *)gr_alloc(sizeof (struct symlink));
sym->role = current_role;
sym->subj = subj;
sym->obj = obj;
sym->policy_file = current_acl_file;
sym->lineno = lineno;
sym->next = symlinks;
symlinks = sym;
return;
}
static struct deleted_file *
is_deleted_file_dupe(const char *filename)
{
struct deleted_file *tmp;
for (tmp = deleted_files; tmp; tmp = tmp->next) {
if (!strcmp(filename, tmp->filename))
return tmp;
}
return NULL;
}
static struct deleted_file *
add_deleted_file(const char *filename)
{
struct deleted_file *dfile;
struct deleted_file *retfile;
static u_int64_t ino = 0x10000000;
ino++;
retfile = is_deleted_file_dupe(filename);
if (retfile)
return retfile;
dfile = (struct deleted_file *)gr_alloc(sizeof (struct deleted_file));
dfile->filename = filename;
dfile->ino = ++ino;
dfile->next = deleted_files;
deleted_files = dfile;
return deleted_files;
}
static struct file_acl *
is_proc_object_dupe(struct proc_acl *subject, struct file_acl *object)
{
struct file_acl *tmp = NULL;
tmp = lookup_acl_object_by_name(subject, object->filename);
if (tmp == NULL)
tmp = lookup_acl_object(subject, object);
else {
/* found a match by filename, handle 'Z' flag here */
if (object->mode & GR_OBJ_REPLACE)
tmp->mode = object->mode &~ GR_OBJ_REPLACE;
}
return tmp;
}
static struct proc_acl *
is_proc_subject_dupe(struct role_acl *role, struct proc_acl *subject)
{
struct proc_acl *tmp = NULL;
tmp = lookup_acl_subject_by_name(role, subject->filename);
if (tmp == NULL)
tmp = lookup_acl_subject(role, subject);
else {
/* found a match by filename, handle 'Z' flag here */
if (subject->mode & GR_SUBJ_REPLACE) {
// FIXME: we leak allocations here
/* save off the old ->prev and restore it */
struct proc_acl *prev = tmp->prev;
memcpy(tmp, subject, sizeof(struct proc_acl));
tmp->prev = prev;
tmp->mode = subject->mode &~ GR_SUBJ_REPLACE;
tmp->hash = create_hash_table(GR_HASH_OBJECT);
current_subject = tmp;
}
}
return tmp;
}
int
add_role_acl(struct role_acl **role, const char *rolename, u_int16_t type, int ignore)
{
struct role_acl *rtmp;
int id, ret;
if (current_role && current_role->hash == NULL) {
fprintf(stderr, "Error on line %lu of %s: "
"Attempting to add the role \"%s\" when "
"no subjects have been specified for "
"the previous role \"%s\".\nThe RBAC "
"system will not be allowed to be "
"enabled until this error is fixed.\n",
lineno, current_acl_file, rolename, current_role->rolename);
exit(EXIT_FAILURE);
}
num_roles++;
/* one for role, one for name */
num_pointers += 2;
if (!rolename) {
fprintf(stderr, "Out of memory.\n");
exit(EXIT_FAILURE);
}
rtmp = (struct role_acl *) gr_alloc(sizeof (struct role_acl));
rtmp->umask = 0;
rtmp->roletype = type;
rtmp->rolename = rolename;
if (strcmp(rolename, "default") && (type & GR_ROLE_DEFAULT)) {
fprintf(stderr, "No role type specified for %s on line %lu "
"of %s.\nThe RBAC system will not be allowed to be "
"enabled until this error is fixed.\n", rolename,
lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if (is_role_dupe(*role, rtmp->rolename, rtmp->roletype)) {
fprintf(stderr, "Duplicate role %s on line %lu of %s.\n"
"The RBAC system will not be allowed to be "
"enabled until this error is fixed.\n",
rtmp->rolename, lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if (ignore)
rtmp->uidgid = special_role_uid++;
else if (strcmp(rolename, "default") || !(type & GR_ROLE_DEFAULT)) {
if (type & (GR_ROLE_USER | GR_ROLE_GROUP)) {
ret = get_id_from_role_name(rolename, type, &id);
if (ret) {
/* ignore roles for nonexistent users/groups */
rtmp->roletype |= GR_ROLE_IGNORENOEXIST;
num_roles--;
num_pointers -= 2;
id = -1;
}
rtmp->uidgid = id;
} else if (type & GR_ROLE_SPECIAL) {
rtmp->uidgid = special_role_uid++;
}
}
if (*role)
(*role)->next = rtmp;
rtmp->prev = *role;
*role = rtmp;
if (type & GR_ROLE_SPECIAL)
add_role_transition(rtmp,rolename);
if (type & GR_ROLE_AUTH) {
add_gradm_acl(rtmp);
add_gradm_pam_acl(rtmp);
}
if (!(type & GR_ROLE_SPECIAL))
add_grlearn_acl(rtmp);
if (type & GR_ROLE_LEARN)
add_rolelearn_acl();
return 1;
}
int count_slashes(const char *str)
{
int i = 0;
while (*str) {
if (*str == '/')
i++;
str++;
}
return i;
}
static int
add_globbing_file(struct proc_acl *subject, const char *filename,
u_int32_t mode, int type)
{
struct glob_file *glob = (struct glob_file *)gr_alloc(sizeof (struct glob_file));
glob->role = current_role;
glob->subj = subject;
glob->filename = filename;
glob->mode = mode;
glob->type = type;
glob->policy_file = current_acl_file;
glob->lineno = lineno;
glob->next = NULL;
if (!glob_files_head) {
glob_files_head = glob;
} else {
glob_files_tail->next = glob;
}
glob_files_tail = glob;
return 1;
}
int
add_globbed_object_acl(struct proc_acl *subject, const char *filename,
u_int32_t mode, int type, const char *policy_file, unsigned long line)
{
char *basepoint;
char *p, *p2;
struct file_acl *anchor;
struct file_acl *glob, *glob2;
int lnum, onum;
/* one for the object itself, one for the filename */
num_pointers += 2;
basepoint = get_anchor(filename);
anchor = lookup_acl_object_by_name(subject, basepoint);
if (!anchor) {
fprintf(stderr, "Error on line %lu of %s:\n"
"Object %s needs to be specified in the same subject as globbed object %s.\n"
"The RBAC system will not be allowed to be enabled until this error is corrected.\n\n",
line, policy_file, basepoint, filename);
exit(EXIT_FAILURE);
}
free(basepoint);
if (anchor->globbed) {
glob = anchor->globbed;
glob2 = (struct file_acl *)gr_alloc(sizeof(struct file_acl));
onum = count_slashes(filename);
lnum = count_slashes(glob->filename);
if (onum > lnum) {
glob2->next = glob;
anchor->globbed = glob2;
glob2->filename = filename;
glob2->mode = mode;
glob->prev = glob2;
return 1;
}
while (glob->next) {
lnum = count_slashes(glob->next->filename);
if (onum > lnum) {
glob2->next = glob->next;
glob->next = glob2;
glob2->filename = filename;
glob2->mode = mode;
glob2->prev = glob;
glob->next->prev = glob2;
return 1;
}
glob = glob->next;
}
glob2->filename = filename;
glob2->mode = mode;
glob2->prev = glob;
glob->next = glob2;
} else {
glob2 = (struct file_acl *)gr_alloc(sizeof(struct file_acl));
glob2->filename = filename;
glob2->mode = mode;
anchor->globbed = glob2;
}
return 1;
}
static void
display_all_dupes(struct proc_acl *subject, struct file_acl *filp2)
{
struct file_acl *tmp;
struct stat64 fstat;
struct file_acl ftmp;
for_each_file_object(tmp, subject) {
if (get_canonical_inodev(tmp->filename, &ftmp.inode, &ftmp.dev, NULL)) {
if (ftmp.inode == filp2->inode && ftmp.dev == filp2->dev)
fprintf(stderr, "%s (due to symlinking/hardlinking)\n", tmp->filename);
} else if (!strcmp(tmp->filename, filp2->filename)) {
fprintf(stderr, "%s\n", tmp->filename);
}
}
return;
}
static char *
parse_homedir(const char *filename)
{
struct passwd *pwd;
unsigned int newlen;
char *newfilename;
if (!(current_role->roletype & GR_ROLE_USER) ||
(current_role->roletype & GR_ROLE_DOMAIN)) {
fprintf(stderr, "Error on line %lu of %s. $HOME "
"is supported only on user roles.\n",
lineno, current_acl_file);
exit(EXIT_FAILURE);
}
pwd = getpwuid(current_role->uidgid);
if (pwd == NULL) {
fprintf(stderr, "Error: Unable to use $HOME on line %lu of %s"
", as it can only be used in roles for users that exist"
" at the time RBAC policy is enabled.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
newlen = strlen(pwd->pw_dir) + strlen(filename) - 5 + 1;
newfilename = (char *)gr_alloc(newlen);
if (!newfilename) {
fprintf(stderr, "Out of memory.\n");
exit(EXIT_FAILURE);
}
strcpy(newfilename, pwd->pw_dir);
strcat(newfilename, (filename + 5));
return newfilename;
}
int
add_proc_object_acl(struct proc_acl *subject, const char *filename,
u_int32_t mode, int type)
{
struct file_acl *p;
struct file_acl *p2;
struct deleted_file *dfile;
const char *str;
u_int64_t inode;
u_int32_t dev;
int is_symlink;
if (!subject) {
fprintf(stderr, "Error on line %lu of %s. Attempt to "
"add an object without a subject declaration.\n"
"The RBAC system will not load until this "
"error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if (!filename) {
fprintf(stderr, "Out of memory.\n");
exit(EXIT_FAILURE);
}
if (!strncmp(filename, "$HOME", 5))
filename = parse_homedir(filename);
else if (!strncmp(filename, "/dev/pts/", 9)) {
fprintf(stderr, "Error on line %lu of %s. Grsecurity does "
"not support fine-grained policy on devpts mounts.\n"
"Please change your more fine-grained object to a /dev/pts "
"object. This will in addition produce a better policy that "
"will not break as unnecessarily.\n"
"The RBAC system will not load until this "
"error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
str = filename;
if (!strncmp(filename, "/SYSV", 5))
return add_globbing_file(subject, filename, mode, type);
while (*str) {
if (*str == '?' || *str == '*')
return add_globbing_file(subject, filename, mode, type);
if (*str == '[') {
const char *str2 = str;
while (*str2) {
if (*str2 == ']')
return add_globbing_file(subject, filename, mode, type);
str2++;
}
}
str++;
}
if (!get_canonical_inodev(filename, &inode, &dev, &is_symlink)) {
dfile = add_deleted_file(filename);
inode = dfile->ino;
dev = 0;
mode |= GR_DELETED;
}
num_objects++;
/* one for the object, one for the filename, one for the name entry struct, and one for the inodev_entry struct in the kernel*/
num_pointers += 4;
p = (struct file_acl *) gr_alloc(sizeof (struct file_acl));
p->filename = filename;
p->mode = mode;
p->inode = inode;
p->dev = dev;
if (type & GR_FLEARN) {
struct file_acl *tmp;
tmp = lookup_acl_object_by_name(subject, p->filename);
if (tmp) {
tmp->mode |= mode;
return 1;
}
tmp = lookup_acl_object(subject, p);
if (tmp) {
tmp->mode |= mode;
return 1;
}
} else if ((p2 = is_proc_object_dupe(subject, p))) {
if (p2->mode == mode)
return 1;
fprintf(stderr, "Duplicate object found for \"%s\""
" in role %s, subject %s, on line %lu of %s.\n"
"\"%s\" references the same object as the following object(s):\n",
p->filename, current_role->rolename,
subject->filename, lineno,
current_acl_file ? current_acl_file : "<builtin_fulllearn_policy>", p->filename);
display_all_dupes(subject, p);
fprintf(stderr, "specified on an earlier line.\n");
fprintf(stderr, "The RBAC system will not load until this error is fixed.\n");
exit(EXIT_FAILURE);
}
insert_acl_object(subject, p);
if (is_symlink)
add_symlink(subject, p);
return 1;
}
int
add_proc_subject_acl(struct role_acl *role, const char *filename, u_int32_t mode, int flag)
{
struct proc_acl *p;
struct proc_acl *p2;
struct deleted_file *dfile;
struct stat fstat;
num_subjects++;
/* one for the subject, one for the filename */
num_pointers += 2;
if (!role) {
fprintf(stderr, "Error on line %lu of %s. Attempt to "
"add a subject without a role declaration.\n"
"The RBAC system will not load until this "
"error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if (!filename) {
fprintf(stderr, "Out of memory.\n");
exit(EXIT_FAILURE);
}
if (mode & GR_LEARN && mode & GR_INHERITLEARN) {
fprintf(stderr, "Error on line %lu of %s. Subject mode "
"may not include both learn and inherit-learn.\n"
"The RBAC system will not load until this "
"error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if (!strncmp(filename, "$HOME", 5))
filename = parse_homedir(filename);
p = (struct proc_acl *) gr_alloc(sizeof (struct proc_acl));
// FIXME: for subjects we currently follow symlinks
if (!get_canonical_inodev(filename, &p->inode, &p->dev, NULL)) {
dfile = add_deleted_file(filename);
p->inode = dfile->ino;
p->dev = 0;
mode |= GR_DELETED;
}
if (!strcmp(filename, "/") && !(flag & GR_FFAKE))
role->root_label = p;
p->filename = filename;
p->mode = mode;
if (!(flag & GR_FFAKE) && (p2 = is_proc_subject_dupe(role, p))) {
if (mode & GR_SUBJ_REPLACE)
return 1;
fprintf(stderr, "Duplicate subject found for \"%s\""
" in role %s, on line %lu of %s.\n"
"\"%s\" references the same object as \"%s\""
" specified on an earlier line.\n"
"The RBAC system will not load until this"
" error is fixed.\n", p->filename,
role->rolename, lineno,
current_acl_file, p->filename, p2->filename);
exit(EXIT_FAILURE);
}
/* don't insert nested subjects into main hash */
if (!(flag & GR_FFAKE))
insert_acl_subject(role, p);
else
insert_nested_acl_subject(p);
current_subject = p;
return 1;
}
u_int16_t
role_mode_conv(const char *mode)
{
int len = strlen(mode) - 1;
u_int16_t retmode = GR_ROLE_DEFAULT;
for (; len >= 0; len--) {
switch (mode[len]) {
case 'u':
retmode &= ~GR_ROLE_DEFAULT;
retmode |= GR_ROLE_USER;
break;
case 'g':
retmode &= ~GR_ROLE_DEFAULT;
retmode |= GR_ROLE_GROUP;
break;
case 's':
retmode &= ~GR_ROLE_DEFAULT;
retmode |= GR_ROLE_SPECIAL;
break;
case 'l':
retmode |= GR_ROLE_LEARN;
break;
case 'G':
retmode |= GR_ROLE_AUTH;
break;
case 'N':
retmode |= GR_ROLE_NOPW;
break;
case 'A':
retmode |= GR_ROLE_GOD;
break;
case 'R':
retmode |= GR_ROLE_PERSIST;
break;
case 'T':
retmode |= GR_ROLE_TPE;
break;
case 'P':
retmode |= GR_ROLE_PAM;
break;
default:
fprintf(stderr, "Invalid role mode "
"\'%c\' found on line %lu "
"of %s\n", mode[len], lineno, current_acl_file);
exit(EXIT_FAILURE);
}
}
if ((retmode & (GR_ROLE_SPECIAL | GR_ROLE_PERSIST)) == GR_ROLE_PERSIST) {
fprintf(stderr, "Error on line %lu of %s. Persistent "
"roles are only valid in the context of special roles.\n"
"The RBAC system will not load until this error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if ((retmode & (GR_ROLE_NOPW | GR_ROLE_PAM)) == (GR_ROLE_NOPW | GR_ROLE_PAM)) {
fprintf(stderr, "Error on line %lu of %s. The role mode must contain only one of the noauth and pamauth modes.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if ((retmode & GR_ROLE_SPECIAL) &&
(retmode & (GR_ROLE_USER | GR_ROLE_GROUP))) {
fprintf(stderr, "Error on line %lu of %s. The role mode must be either "
"special, or user/group, not both.\n"
"The RBAC system will not load until this"
" error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if ((retmode & (GR_ROLE_USER | GR_ROLE_GROUP)) && (retmode & GR_ROLE_NOPW)) {
fprintf(stderr, "Error on line %lu of %s. The role mode \"N\" can only "
"be used with a special role.\n"
"The RBAC system will not load until this"
" error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
if ((retmode & (GR_ROLE_USER | GR_ROLE_GROUP)) ==
(GR_ROLE_USER | GR_ROLE_GROUP)) {
fprintf(stderr, "Error on line %lu of %s. The role mode cannot be both "
"user or group, you must choose one.\n"
"The RBAC system will not load until this"
" error is fixed.\n", lineno, current_acl_file);
exit(EXIT_FAILURE);
}
return retmode;
}
u_int32_t
proc_subject_mode_conv(const char *mode)
{
int i;
u_int32_t retmode = 0;
retmode |= GR_PROCFIND;
for (i = 0; i < strlen(mode); i++) {
switch (mode[i]) {
case 'T':
retmode |= GR_NOTROJAN;
break;
case 'K':
retmode |= GR_KILLPROC;
break;
case 'C':
retmode |= GR_KILLIPPROC;
break;
case 'A':
retmode |= GR_PROTSHM;
break;
case 'O':
retmode |= GR_IGNORE;
break;
case 'Z':
retmode |= GR_SUBJ_REPLACE;
break;
case 'o':
retmode |= GR_OVERRIDE;
break;
case 't':
retmode |= GR_POVERRIDE;
break;
case 'l':
retmode |= GR_LEARN;
break;
case 'h':
retmode &= ~GR_PROCFIND;
break;
case 'p':
retmode |= GR_PROTECTED;
break;
case 'k':
retmode |= GR_KILL;
break;
case 'v':
retmode |= GR_VIEW;
break;
case 'd':
retmode |= GR_PROTPROCFD;
break;
case 'b':
retmode |= GR_PROCACCT;
break;
case 'r':
retmode |= GR_RELAXPTRACE;
break;
case 'i':
retmode |= GR_INHERITLEARN;
break;
case 'a':
retmode |= GR_KERNELAUTH;
break;
case 's':
retmode |= GR_ATSECURE;
break;
case 'x':
retmode |= GR_SHMEXEC;
break;
default:
fprintf(stderr, "Invalid subject mode "
"\'%c\' found on line %lu "
"of %s\n", mode[i], lineno, current_acl_file);
exit(EXIT_FAILURE);
}
}
return retmode;
}
u_int32_t
proc_object_mode_conv(const char *mode)
{
int i;
u_int32_t retmode = 0;
retmode |= GR_FIND;
for (i = 0; i < strlen(mode); i++) {
switch (mode[i]) {
case 'r':
retmode |= GR_READ;
break;
case 'w':
retmode |= GR_WRITE;
retmode |= GR_APPEND;
break;
case 'c':
retmode |= GR_CREATE;
break;
case 'd':
retmode |= GR_DELETE;
break;
case 'x':
retmode |= GR_EXEC;
break;
case 'a':
retmode |= GR_APPEND;
break;
case 'h':
retmode &= ~GR_FIND;
break;
case 'i':
retmode |= GR_INHERIT;
break;
case 't':
retmode |= GR_PTRACERD;
break;
case 'l':
retmode |= GR_LINK;
break;
case 'Z':
retmode |= GR_OBJ_REPLACE;
break;
case 'F':
retmode |= GR_AUDIT_FIND;
break;
case 'R':