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Add profile names that are independent of attachment specification

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Add the ability to specify the name and attachment of the profile
separately. It does not allow for the attachment specification to
begin with a variable however since variables in profile names is not
currently support this shouldn't be and issue.

Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen 2010-12-20 11:49:42 -08:00
parent 49f27414e0
commit d4ca9f3ba0
5 changed files with 30 additions and 8 deletions
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1
parser/parser.h
View file

@ -88,6 +88,7 @@ struct alt_name {
struct codomain {
char *namespace;
char *name; /* codomain name */
char *attachment;
struct alt_name *altnames;
void *xmatch;
size_t xmatch_size;

10
parser/parser_alias.c
View file

@ -159,6 +159,7 @@ static void process_name(const void *nodep, VISIT value, int __unused level)
{
struct alias_rule **t = (struct alias_rule **) nodep;
struct codomain *cod = target_cod;
char *name;
int len;
if (value == preorder || value == endorder)
@ -166,9 +167,14 @@ static void process_name(const void *nodep, VISIT value, int __unused level)
len = strlen((*t)->from);
if (cod->name && strncmp((*t)->from, cod->name, len) == 0) {
if (cod->attachment)
name = cod->attachment;
else
name = cod->name;
if (name && strncmp((*t)->from, name, len) == 0) {
struct alt_name *alt;
char *new = do_alias(*t, cod->name);
char *new = do_alias(*t, name);
if (!new)
return;
/* aliases create alternate names */

2
parser/parser_policy.c
View file

@ -736,6 +736,8 @@ void free_policy(struct codomain *cod)
free(cod->dfa);
if (cod->name)
free(cod->name);
if (cod->attachment)
free(cod->attachment);
if (cod->namespace)
free(cod->namespace);
if (cod->network_allowed)

7
parser/parser_regex.c
View file

@ -388,14 +388,17 @@ static int process_profile_name_xmatch(struct codomain *cod)
const char *name;
/* don't filter_slashes for profile names */
name = local_name(cod->name);
if (cod->attachment)
name = cod->attachment;
else
name = local_name(cod->name);
ptype = convert_aaregex_to_pcre(name, 0, tbuf, PATH_MAX + 3,
&cod->xmatch_len);
if (ptype == ePatternInvalid) {
PERROR(_("%s: Invalid profile name '%s' - bad regular expression\n"), progname, name);
return FALSE;
} else if (ptype == ePatternBasic && !cod->altnames) {
} else if (ptype == ePatternBasic && !(cod->altnames || cod->attachment)) {
/* no regex so do not set xmatch */
cod->xmatch = NULL;
cod->xmatch_len = 0;

18
parser/parser_yacc.y
View file

@ -190,6 +190,7 @@ void add_local_entry(struct codomain *cod);
%type <boolean> opt_owner_flag
%type <boolean> opt_profile_flag
%type <id> opt_namespace
%type <id> opt_id
%type <transition> opt_named_transition
%%
@ -213,22 +214,31 @@ opt_profile_flag: { /* nothing */ $$ = 0; }
opt_namespace: { /* nothing */ $$ = NULL; }
| TOK_COLON TOK_ID TOK_COLON { $$ = $2; }
profile_base: TOK_ID flags TOK_OPEN rules TOK_CLOSE
opt_id: { /* nothing */ $$ = NULL; }
| TOK_ID { $$ = $1; }
profile_base: TOK_ID opt_id flags TOK_OPEN rules TOK_CLOSE
{
struct codomain *cod = $4;
struct codomain *cod = $5;
if (!cod) {
yyerror(_("Memory allocation error."));
}
cod->name = $1;
cod->flags = $2;
cod->attachment = $2;
if ($2 && $2[0] != '/')
/* we don't support variables as part of the profile
* name or attachment atm
*/
yyerror(_("Profile attachment must begin with a '/'."));
cod->flags = $3;
if (force_complain)
cod->flags.complain = 1;
post_process_nt_entries(cod);
PDEBUG("%s: flags='%s%s'\n",
$2,
$3,
cod->flags.complain ? "complain, " : "",
cod->flags.audit ? "audit" : "");