libubus-acl.c File Reference

#include <unistd.h>
#include <libubox/blob.h>
#include <libubox/blobmsg.h>
#include "libubus.h"
#include <libubox/avl-cmp.h>

Go to the source code of this file.

Enumerations
enum	{   ACL_OBJ_OBJECT , ACL_OBJ_USER , ACL_OBJ_GROUP , ACL_OBJ_ACL ,   __ACL_OBJ_MAX }
enum	{ ACL_POLICY_SEQ , ACL_POLICY_ACL , __ACL_POLICY_MAX }

Functions
static int	acl_cmp (const void *k1, const void *k2, void *ptr)
	AVL_TREE (acl_objects, acl_cmp, true, NULL)
static void	acl_add (struct blob_attr *obj)
static void	acl_recv_cb (struct ubus_request *req, int type, struct blob_attr *msg)
static void	acl_query (struct ubus_context *ctx)
static void	acl_subscribe_cb (struct ubus_context *ctx, struct ubus_event_handler *ev, const char *type, struct blob_attr *msg)
int	ubus_register_acl (struct ubus_context *ctx)

Variables
static struct ubus_event_handler	acl_event
static struct ubus_request	acl_req
static struct blob_attr *	acl_blob
static const struct blobmsg_policy	acl_obj_policy [__ACL_OBJ_MAX]
static const struct blobmsg_policy	acl_policy [__ACL_POLICY_MAX]

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
ACL_OBJ_OBJECT
ACL_OBJ_USER
ACL_OBJ_GROUP
ACL_OBJ_ACL
__ACL_OBJ_MAX

Definition at line 47 of file libubus-acl.c.

     {
        ACL_OBJ_OBJECT,
        ACL_OBJ_USER,
        ACL_OBJ_GROUP,
        ACL_OBJ_ACL,
        __ACL_OBJ_MAX
};

anonymous enum

anonymous enum

Enumerator
ACL_POLICY_SEQ
ACL_POLICY_ACL
__ACL_POLICY_MAX

Definition at line 89 of file libubus-acl.c.

     {
        ACL_POLICY_SEQ,
        ACL_POLICY_ACL,
        __ACL_POLICY_MAX
};

Function Documentation

acl_add()

static void acl_add ( struct blob_attr *  obj )

static

Definition at line 63 of file libubus-acl.c.

{
        struct blob_attr *tb[__ACL_OBJ_MAX];
        struct acl_object *acl;
 
        blobmsg_parse(acl_obj_policy, __ACL_OBJ_MAX, tb, blobmsg_data(obj),
                      blobmsg_data_len(obj));
 
        if (!tb[ACL_OBJ_OBJECT] || !tb[ACL_OBJ_ACL])
                return;
 
        if (!tb[ACL_OBJ_USER] && !tb[ACL_OBJ_GROUP])
                return;
 
        acl = calloc(1, sizeof(*acl));
        if (!acl)
                return;
 
        acl->avl.key = &acl->key;
        acl->key.object = blobmsg_get_string(tb[ACL_OBJ_OBJECT]);
        acl->key.user = blobmsg_get_string(tb[ACL_OBJ_USER]);
        acl->key.group = blobmsg_get_string(tb[ACL_OBJ_GROUP]);
        acl->acl = tb[ACL_OBJ_ACL];
        avl_insert(&acl_objects, &acl->avl);
}

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acl_cmp()

static int acl_cmp ( const void *  k1, const void *  k2, void *  ptr  )

static

Definition at line 26 of file libubus-acl.c.

{
        const struct ubus_acl_key *key1 = k1;
        const struct ubus_acl_key *key2 = k2;
        int ret = 0;
 
        if (key1->user && key2->user)
                ret = strcmp(key1->user, key2->user);
        if (ret)
                return ret;
 
        if (key1->group && key2->group)
                ret = strcmp(key1->group, key2->group);
        if (ret)
                return ret;
 
        return strcmp(key1->object, key2->object);
}

acl_query()

static void acl_query ( struct ubus_context *  ctx )

static

Definition at line 127 of file libubus-acl.c.

{
        ubus_invoke_async(ctx, UBUS_SYSTEM_OBJECT_ACL, "query", NULL, &acl_req);
        acl_req.data_cb = acl_recv_cb;
        ubus_complete_request_async(ctx, &acl_req);
}

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acl_recv_cb()

static void acl_recv_cb ( struct ubus_request *  req, int  type, struct blob_attr *  msg  )

static

Definition at line 100 of file libubus-acl.c.

{
        struct blob_attr *tb[__ACL_POLICY_MAX];
        struct blob_attr *cur;
        size_t rem;
 
        if (acl_blob) {
                struct acl_object *p, *q;
 
                avl_for_each_element_safe(&acl_objects, p, avl, q) {
                        avl_delete(&acl_objects, &p->avl);
                        free(p);
                }
                free(acl_blob);
        }
        acl_blob = blob_memdup(msg);
        blobmsg_parse(acl_policy, __ACL_POLICY_MAX, tb, blobmsg_data(msg),
                      blobmsg_data_len(msg));
 
        if (!tb[ACL_POLICY_SEQ] && !tb[ACL_POLICY_ACL])
                return;
 
        blobmsg_for_each_attr(cur, tb[ACL_POLICY_ACL], rem)
                acl_add(cur);
}

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acl_subscribe_cb()

static void acl_subscribe_cb ( struct ubus_context *  ctx, struct ubus_event_handler *  ev, const char *  type, struct blob_attr *  msg  )

static

Definition at line 134 of file libubus-acl.c.

{
        if (strcmp(type, "ubus.acl.sequence"))
                return;
        acl_query(ctx);
}

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AVL_TREE()

AVL_TREE	(	acl_objects	,
		acl_cmp	,
		true	,
		NULL
	)

ubus_register_acl()

int ubus_register_acl

(

struct ubus_context *

ctx

)

Definition at line 142 of file libubus-acl.c.

{
        int ret;
 
        acl_event.cb = acl_subscribe_cb;
 
        ret = ubus_register_event_handler(ctx, &acl_event, "ubus.acl.sequence");
        if (!ret)
                acl_query(ctx);
 
        return ret;
}

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Variable Documentation

acl_blob

struct blob_attr* acl_blob

static

Definition at line 24 of file libubus-acl.c.

acl_event

struct ubus_event_handler acl_event

static

Definition at line 1 of file libubus-acl.c.

acl_obj_policy

const struct blobmsg_policy acl_obj_policy[__ACL_OBJ_MAX]

static

Initial value:

= {
        [ACL_OBJ_OBJECT] = { .name = "obj", .type = BLOBMSG_TYPE_STRING },
        [ACL_OBJ_USER] = { .name = "user", .type = BLOBMSG_TYPE_STRING },
        [ACL_OBJ_GROUP] = { .name = "group", .type = BLOBMSG_TYPE_STRING },
        [ACL_OBJ_ACL] = { .name = "acl", .type = BLOBMSG_TYPE_TABLE },
}

Definition at line 45 of file libubus-acl.c.

acl_policy

const struct blobmsg_policy acl_policy[__ACL_POLICY_MAX]

static

Initial value:

= {
        [ACL_POLICY_SEQ] = { .name = "seq", .type = BLOBMSG_TYPE_INT32 },
        [ACL_POLICY_ACL] = { .name = "acl", .type = BLOBMSG_TYPE_ARRAY },
}

Definition at line 63 of file libubus-acl.c.

acl_req

struct ubus_request acl_req

static

Definition at line 1 of file libubus-acl.c.