/*
- * luci-rpcd - LuCI UBUS RPC server
+ * rpcd - UBUS RPC server
*
- * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
+ * Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
+ * Copyright (C) 2016 Luka Perkov <luka@openwrt.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#define _GNU_SOURCE
+
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/wait.h>
+#include <libubus.h>
+#include <libubox/blobmsg.h>
+#include <libubox/md5.h>
+#include <libubox/ustream.h>
+#include <libubox/utils.h>
+
+#include <rpcd/plugin.h>
+
+/* limit of sys & proc files */
+#define RPC_FILE_MIN_SIZE (4096)
+
+/* limit of regular files and command output data */
+#define RPC_FILE_MAX_SIZE (4096 * 64)
+
+/* limit of command line length for exec acl checks */
+#define RPC_CMDLINE_MAX_SIZE (1024)
+
+#define ustream_for_each_read_buffer(stream, ptr, len) \
+ for (ptr = ustream_get_read_buf(stream, &len); \
+ ptr != NULL && len > 0; \
+ ustream_consume(stream, len), ptr = ustream_get_read_buf(stream, &len))
+
+#define ustream_declare(us, fd, name) \
+ us.stream.string_data = true; \
+ us.stream.r.buffer_len = 4096; \
+ us.stream.r.max_buffers = RPC_FILE_MAX_SIZE / 4096; \
+ us.stream.notify_read = rpc_file_##name##_read_cb; \
+ us.stream.notify_state = rpc_file_##name##_state_cb; \
+ ustream_fd_init(&us, fd);
+
+static const struct rpc_daemon_ops *ops;
+
+struct rpc_file_exec_context {
+ struct ubus_context *context;
+ struct ubus_request_data request;
+ struct uloop_timeout timeout;
+ struct uloop_process process;
+ struct ustream_fd opipe;
+ struct ustream_fd epipe;
+ int stat;
+};
-#include "file.h"
static struct blob_buf buf;
+static char *canonpath;
+static char cmdstr[RPC_CMDLINE_MAX_SIZE];
+
+enum {
+ RPC_F_R_PATH,
+ RPC_F_R_SESSION,
+ __RPC_F_R_MAX,
+};
+
+static const struct blobmsg_policy rpc_file_R_policy[__RPC_F_R_MAX] = {
+ [RPC_F_R_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
+ [RPC_F_R_SESSION] = { .name = "ubus_rpc_session",
+ .type = BLOBMSG_TYPE_STRING },
+};
enum {
- RPC_F_PATH,
- RPC_F_DATA,
- __RPC_F_MAX,
+ RPC_F_RB_PATH,
+ RPC_F_RB_BASE64,
+ RPC_F_RB_SESSION,
+ __RPC_F_RB_MAX,
};
-static const struct blobmsg_policy rpc_file_policy[__RPC_F_MAX] = {
- [RPC_F_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
- [RPC_F_DATA] = { .name = "data", .type = BLOBMSG_TYPE_STRING },
+static const struct blobmsg_policy rpc_file_RB_policy[__RPC_F_RB_MAX] = {
+ [RPC_F_RB_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
+ [RPC_F_RB_BASE64] = { .name = "base64", .type = BLOBMSG_TYPE_BOOL },
+ [RPC_F_RB_SESSION] = { .name = "ubus_rpc_session",
+ .type = BLOBMSG_TYPE_STRING },
+};
+
+enum {
+ RPC_F_RW_PATH,
+ RPC_F_RW_DATA,
+ RPC_F_RW_APPEND,
+ RPC_F_RW_MODE,
+ RPC_F_RW_BASE64,
+ RPC_F_RW_SESSION,
+ __RPC_F_RW_MAX,
+};
+
+static const struct blobmsg_policy rpc_file_RW_policy[__RPC_F_RW_MAX] = {
+ [RPC_F_RW_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
+ [RPC_F_RW_DATA] = { .name = "data", .type = BLOBMSG_TYPE_STRING },
+ [RPC_F_RW_APPEND] = { .name = "append", .type = BLOBMSG_TYPE_BOOL },
+ [RPC_F_RW_MODE] = { .name = "mode", .type = BLOBMSG_TYPE_INT32 },
+ [RPC_F_RW_BASE64] = { .name = "base64", .type = BLOBMSG_TYPE_BOOL },
+ [RPC_F_RW_SESSION] = { .name = "ubus_rpc_session",
+ .type = BLOBMSG_TYPE_STRING },
};
enum {
RPC_E_CMD,
RPC_E_PARM,
RPC_E_ENV,
+ RPC_E_SESSION,
__RPC_E_MAX,
};
static const struct blobmsg_policy rpc_exec_policy[__RPC_E_MAX] = {
- [RPC_E_CMD] = { .name = "command", .type = BLOBMSG_TYPE_STRING },
- [RPC_E_PARM] = { .name = "params", .type = BLOBMSG_TYPE_ARRAY },
- [RPC_E_ENV] = { .name = "env", .type = BLOBMSG_TYPE_TABLE },
+ [RPC_E_CMD] = { .name = "command", .type = BLOBMSG_TYPE_STRING },
+ [RPC_E_PARM] = { .name = "params", .type = BLOBMSG_TYPE_ARRAY },
+ [RPC_E_ENV] = { .name = "env", .type = BLOBMSG_TYPE_TABLE },
+ [RPC_E_SESSION] = { .name = "ubus_rpc_session",
+ .type = BLOBMSG_TYPE_STRING },
};
static const char *d_types[] = {
}
}
+static bool
+rpc_file_access(const struct blob_attr *sid,
+ const char *path, const char *perm)
+{
+ if (!sid)
+ return true;
+
+ return ops->session_access(blobmsg_data(sid), "file", path, perm);
+}
+
+static char *
+rpc_canonicalize_path(const char *path)
+{
+ char *cp;
+ const char *p;
+
+ if (path == NULL || *path == '\0')
+ return NULL;
+
+ if (canonpath != NULL)
+ free(canonpath);
+
+ canonpath = strdup(path);
+
+ if (canonpath == NULL)
+ return NULL;
+
+ /* normalize */
+ for (cp = canonpath, p = path; *p != '\0'; ) {
+ if (*p != '/')
+ goto next;
+
+ /* skip repeating / */
+ if (p[1] == '/') {
+ p++;
+ continue;
+ }
+
+ /* /./ or /../ */
+ if (p[1] == '.') {
+ /* skip /./ */
+ if ((p[2] == '\0') || (p[2] == '/')) {
+ p += 2;
+ continue;
+ }
+
+ /* collapse /x/../ */
+ if ((p[2] == '.') && ((p[3] == '\0') || (p[3] == '/'))) {
+ while ((cp > canonpath) && (*--cp != '/'))
+ ;
+
+ p += 3;
+ continue;
+ }
+ }
+
+next:
+ *cp++ = *p++;
+ }
+
+ /* remove trailing slash if not root / */
+ if ((cp > canonpath + 1) && (cp[-1] == '/'))
+ cp--;
+ else if (cp == canonpath)
+ *cp++ = '/';
+
+ *cp = '\0';
+
+ return canonpath;
+}
+
static struct blob_attr **
-rpc_check_path(struct blob_attr *msg, char **path, struct stat *s)
+__rpc_check_path(const struct blobmsg_policy *policy, size_t policy_len,
+ int policy_path_idx, int policy_sid_idx, const char *perm,
+ struct blob_attr *msg, char **path, struct stat *s)
{
- static struct blob_attr *tb[__RPC_F_MAX];
+ static struct blob_attr *tb[__RPC_F_RW_MAX]; /* largest _MAX constant */
- blobmsg_parse(rpc_file_policy, __RPC_F_MAX, tb, blob_data(msg), blob_len(msg));
+ blobmsg_parse(policy, policy_len, tb, blob_data(msg), blob_len(msg));
- if (!tb[RPC_F_PATH])
+ if (!tb[policy_path_idx])
{
errno = EINVAL;
return NULL;
}
- *path = blobmsg_data(tb[RPC_F_PATH]);
+ *path = rpc_canonicalize_path(blobmsg_get_string(tb[policy_path_idx]));
+
+ if (*path == NULL)
+ {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ if (!rpc_file_access(tb[policy_sid_idx], *path, perm))
+ {
+ errno = EACCES;
+ return NULL;
+ }
- if (stat(*path, s))
+ if (s != NULL && stat(*path, s) != 0)
return NULL;
return tb;
}
+#define rpc_check_path(msg, policy_selector, perm, path, s) \
+ __rpc_check_path(rpc_file_ ## policy_selector ## _policy, \
+ ARRAY_SIZE(rpc_file_ ## policy_selector ## _policy), \
+ RPC_F_ ## policy_selector ## _PATH, \
+ RPC_F_ ## policy_selector ## _SESSION, \
+ perm, msg, path, s)
+
static int
rpc_file_read(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- int fd, rv, len;
+ struct blob_attr **tb;
+ bool base64 = false;
+ int fd, rv;
+ ssize_t len;
char *path;
struct stat s;
char *wbuf;
- if (!rpc_check_path(msg, &path, &s))
+ tb = rpc_check_path(msg, RB, "read", &path, &s);
+
+ if (tb == NULL)
return rpc_errno_status();
if (s.st_size >= RPC_FILE_MAX_SIZE)
blob_buf_init(&buf, 0);
- wbuf = blobmsg_alloc_string_buffer(&buf, "data", s.st_size + 1);
+ if (tb[RPC_F_RB_BASE64])
+ base64 = blobmsg_get_bool(tb[RPC_F_RB_BASE64]);
+
+ len = s.st_size + 1;
+ if (base64)
+ len = B64_ENCODE_LEN(s.st_size);
+ wbuf = blobmsg_alloc_string_buffer(&buf, "data", len);
if (!wbuf)
{
goto out;
}
- *(wbuf + len) = 0;
+ if (base64)
+ {
+ uint8_t *data = calloc(len, sizeof(uint8_t));
+ if (!data)
+ {
+ rv = UBUS_STATUS_UNKNOWN_ERROR;
+ goto out;
+ }
+ memcpy(data, wbuf, len);
+
+ len = b64_encode(data, len, wbuf, B64_ENCODE_LEN(len));
+ free(data);
+ if (len < 0)
+ {
+ rv = UBUS_STATUS_UNKNOWN_ERROR;
+ goto out;
+ }
+ }
+
+ *(wbuf + len) = '\0';
blobmsg_add_string_buffer(&buf);
ubus_send_reply(ctx, req, buf.head);
rv = UBUS_STATUS_OK;
out:
+ blob_buf_free(&buf);
close(fd);
return rv;
}
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- int fd;
- char *path;
- struct stat s;
struct blob_attr **tb;
+ int append = O_TRUNC;
+ mode_t prev_mode, mode = 0666;
+ int fd, rv = 0;
+ char *path = NULL;
+ void *data = NULL;
+ ssize_t data_len = 0;
+
+ tb = rpc_check_path(msg, RW, "write", &path, NULL);
- if (!(tb = rpc_check_path(msg, &path, &s)))
+ if (tb == NULL)
return rpc_errno_status();
- if (!tb[RPC_F_DATA])
+ if (!tb[RPC_F_RW_DATA])
return UBUS_STATUS_INVALID_ARGUMENT;
- if ((fd = open(path, O_WRONLY)) < 0)
+ data = blobmsg_data(tb[RPC_F_RW_DATA]);
+ data_len = blobmsg_data_len(tb[RPC_F_RW_DATA]) - 1;
+
+ if (tb[RPC_F_RW_APPEND] && blobmsg_get_bool(tb[RPC_F_RW_APPEND]))
+ append = O_APPEND;
+
+ if (tb[RPC_F_RW_MODE])
+ mode = blobmsg_get_u32(tb[RPC_F_RW_MODE]);
+
+ prev_mode = umask(0);
+ fd = open(path, O_CREAT | O_WRONLY | append, mode);
+ umask(prev_mode);
+ if (fd < 0)
return rpc_errno_status();
- write(fd, blobmsg_data(tb[RPC_F_DATA]), blobmsg_data_len(tb[RPC_F_DATA]));
+ if (tb[RPC_F_RW_BASE64] && blobmsg_get_bool(tb[RPC_F_RW_BASE64]))
+ {
+ data_len = b64_decode(data, data, data_len);
+ if (data_len < 0)
+ {
+ rv = UBUS_STATUS_UNKNOWN_ERROR;
+ goto out;
+ }
+ }
+
+ if (write(fd, data, data_len) < 0)
+ rv = -1;
+
+out:
+ if (fsync(fd) < 0)
+ rv = -1;
+
close(fd);
+ sync();
+
+ if (rv)
+ return rpc_errno_status();
return 0;
}
+static int
+rpc_file_md5(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ int rv, i;
+ char *path;
+ struct stat s;
+ uint8_t md5[16];
+ char *wbuf;
+
+ if (!rpc_check_path(msg, R, "read", &path, &s))
+ return rpc_errno_status();
+
+ if (!S_ISREG(s.st_mode))
+ return UBUS_STATUS_NOT_SUPPORTED;
+
+ if ((rv = md5sum(path, md5)) <= 0)
+ return rpc_errno_status();
+
+ blob_buf_init(&buf, 0);
+ wbuf = blobmsg_alloc_string_buffer(&buf, "md5", 33);
+
+ for (i = 0; i < 16; i++)
+ sprintf(wbuf + (i * 2), "%02x", (uint8_t) md5[i]);
+
+ blobmsg_add_string_buffer(&buf);
+ ubus_send_reply(ctx, req, buf.head);
+ blob_buf_free(&buf);
+
+ return UBUS_STATUS_OK;
+}
+
+static void
+_rpc_file_add_stat(struct stat *s)
+{
+ int type;
+
+ type = S_ISREG(s->st_mode) ? DT_REG :
+ S_ISDIR(s->st_mode) ? DT_DIR :
+ S_ISCHR(s->st_mode) ? DT_CHR :
+ S_ISBLK(s->st_mode) ? DT_BLK :
+ S_ISFIFO(s->st_mode) ? DT_FIFO :
+ S_ISLNK(s->st_mode) ? DT_LNK :
+ S_ISSOCK(s->st_mode) ? DT_SOCK :
+ DT_UNKNOWN;
+
+ blobmsg_add_string(&buf, "type", d_types[type]);
+ blobmsg_add_u32(&buf, "size", s->st_size);
+ blobmsg_add_u32(&buf, "mode", s->st_mode);
+ blobmsg_add_u32(&buf, "atime", s->st_atime);
+ blobmsg_add_u32(&buf, "mtime", s->st_mtime);
+ blobmsg_add_u32(&buf, "ctime", s->st_ctime);
+ blobmsg_add_u32(&buf, "inode", s->st_ino);
+ blobmsg_add_u32(&buf, "uid", s->st_uid);
+ blobmsg_add_u32(&buf, "gid", s->st_gid);
+}
+
static int
rpc_file_list(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
{
DIR *fd;
void *c, *d;
- char *path;
struct stat s;
struct dirent *e;
+ char *path, *entrypath;
- if (!rpc_check_path(msg, &path, &s))
+ if (!rpc_check_path(msg, R, "list", &path, NULL))
return rpc_errno_status();
if ((fd = opendir(path)) == NULL)
if (!strcmp(e->d_name, ".") || !strcmp(e->d_name, ".."))
continue;
- d = blobmsg_open_table(&buf, NULL);
- blobmsg_add_string(&buf, "name", e->d_name);
- blobmsg_add_string(&buf, "type", d_types[e->d_type]);
- blobmsg_close_table(&buf, d);
+ if (asprintf(&entrypath, "%s/%s", path, e->d_name) < 0)
+ continue;
+
+ if (!stat(entrypath, &s))
+ {
+ d = blobmsg_open_table(&buf, NULL);
+ blobmsg_add_string(&buf, "name", e->d_name);
+ _rpc_file_add_stat(&s);
+ blobmsg_close_table(&buf, d);
+ }
+
+ free(entrypath);
}
+ closedir(fd);
+
blobmsg_close_array(&buf, c);
ubus_send_reply(ctx, req, buf.head);
+ blob_buf_free(&buf);
return 0;
}
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- int type;
char *path;
struct stat s;
- if (!rpc_check_path(msg, &path, &s))
+ if (!rpc_check_path(msg, R, "list", &path, &s))
return rpc_errno_status();
blob_buf_init(&buf, 0);
- type = S_ISREG(s.st_mode) ? DT_REG :
- S_ISDIR(s.st_mode) ? DT_DIR :
- S_ISCHR(s.st_mode) ? DT_CHR :
- S_ISBLK(s.st_mode) ? DT_BLK :
- S_ISFIFO(s.st_mode) ? DT_FIFO :
- S_ISLNK(s.st_mode) ? DT_LNK :
- S_ISSOCK(s.st_mode) ? DT_SOCK :
- DT_UNKNOWN;
-
blobmsg_add_string(&buf, "path", path);
- blobmsg_add_string(&buf, "type", d_types[type]);
- blobmsg_add_u32(&buf, "size", s.st_size);
- blobmsg_add_u32(&buf, "mode", s.st_mode);
- blobmsg_add_u32(&buf, "atime", s.st_atime);
- blobmsg_add_u32(&buf, "mtime", s.st_mtime);
- blobmsg_add_u32(&buf, "ctime", s.st_ctime);
- blobmsg_add_u32(&buf, "inode", s.st_ino);
- blobmsg_add_u32(&buf, "uid", s.st_uid);
- blobmsg_add_u32(&buf, "gid", s.st_gid);
+ _rpc_file_add_stat(&s);
ubus_send_reply(ctx, req, buf.head);
+ blob_buf_free(&buf);
+
+ return 0;
+}
+
+static int
+rpc_file_remove_recursive(const char *path);
+
+static int
+rpc_file_remove_recursive(const char *path)
+{
+ DIR *fd;
+ int err = 0;
+ struct stat s;
+ struct dirent *e;
+ char *entrypath;
+
+ if ((fd = opendir(path)) == NULL)
+ return rpc_errno_status();
+
+ for (e = readdir(fd); e != NULL && err == 0; e = readdir(fd))
+ {
+ if (!strcmp(e->d_name, ".") || !strcmp(e->d_name, ".."))
+ continue;
+
+ if (asprintf(&entrypath, "%s/%s", path, e->d_name) >= 0)
+ {
+ if (!lstat(entrypath, &s))
+ {
+ if (S_ISDIR(s.st_mode))
+ err = rpc_file_remove_recursive(entrypath);
+ else if (unlink(entrypath))
+ err = rpc_errno_status();
+ }
+
+ free(entrypath);
+ }
+ else
+ {
+ err = UBUS_STATUS_UNKNOWN_ERROR;
+ }
+ }
+
+ closedir(fd);
+
+ if (!err && rmdir(path))
+ return rpc_errno_status();
+
+ return err;
+}
+
+static int
+rpc_file_remove(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct stat s;
+ char *path = NULL;
+
+ if (!rpc_check_path(msg, R, "write", &path, NULL))
+ return rpc_errno_status();
+
+ if (lstat(path, &s))
+ return rpc_errno_status();
+
+ if (S_ISDIR(s.st_mode))
+ return rpc_file_remove_recursive(path);
+
+ if (unlink(path))
+ return rpc_errno_status();
return 0;
}
rpc_ustream_to_blobmsg(&c->epipe.stream, "stderr");
ubus_send_reply(c->context, &c->request, buf.head);
+ blob_buf_free(&buf);
}
ubus_complete_deferred_request(c->context, &c->request, rv);
rpc_file_exec_opipe_read_cb(struct ustream *s, int bytes)
{
struct rpc_file_exec_context *c =
- container_of(s, struct rpc_file_exec_context, opipe);
+ container_of(s, struct rpc_file_exec_context, opipe.stream);
if (ustream_read_buf_full(s))
rpc_file_exec_reply(c, UBUS_STATUS_NOT_SUPPORTED);
rpc_file_exec_epipe_read_cb(struct ustream *s, int bytes)
{
struct rpc_file_exec_context *c =
- container_of(s, struct rpc_file_exec_context, epipe);
+ container_of(s, struct rpc_file_exec_context, epipe.stream);
if (ustream_read_buf_full(s))
rpc_file_exec_reply(c, UBUS_STATUS_NOT_SUPPORTED);
rpc_file_exec_opipe_state_cb(struct ustream *s)
{
struct rpc_file_exec_context *c =
- container_of(s, struct rpc_file_exec_context, opipe);
+ container_of(s, struct rpc_file_exec_context, opipe.stream);
if (c->opipe.stream.eof && c->epipe.stream.eof)
rpc_file_exec_reply(c, UBUS_STATUS_OK);
rpc_file_exec_epipe_state_cb(struct ustream *s)
{
struct rpc_file_exec_context *c =
- container_of(s, struct rpc_file_exec_context, epipe);
+ container_of(s, struct rpc_file_exec_context, epipe.stream);
if (c->opipe.stream.eof && c->epipe.stream.eof)
rpc_file_exec_reply(c, UBUS_STATUS_OK);
}
+static void
+rpc_fdclose(int fd)
+{
+ if (fd > 2)
+ close(fd);
+}
+
static int
-rpc_file_exec_run(const char *cmd,
- const struct blob_attr *arg, const struct blob_attr *env,
+rpc_file_exec_run(const char *cmd, const struct blob_attr *sid,
+ const struct blob_attr *arg, const struct blob_attr *env,
struct ubus_context *ctx, struct ubus_request_data *req)
{
pid_t pid;
+ int devnull;
int opipe[2];
int epipe[2];
int rem;
struct blob_attr *cur;
- char arglen;
- char **args;
+ uint8_t arglen;
+ char *executable, **args, **tmp, *p;
struct rpc_file_exec_context *c;
if (!cmd)
return UBUS_STATUS_NOT_FOUND;
+ executable = rpc_canonicalize_path(cmd);
+
+ if (executable == NULL)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ if (!rpc_file_access(sid, executable, "exec"))
+ {
+ if (arg == NULL || strlen(executable) >= sizeof(cmdstr))
+ return UBUS_STATUS_PERMISSION_DENIED;
+
+ arglen = 0;
+ p = cmdstr + sprintf(cmdstr, "%s", executable);
+
+ blobmsg_for_each_attr(cur, arg, rem)
+ {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ continue;
+
+ if (arglen == 255 ||
+ p + blobmsg_data_len(cur) >= cmdstr + sizeof(cmdstr))
+ break;
+
+ p += sprintf(p, " %s", blobmsg_get_string(cur));
+ arglen++;
+ }
+
+ if (!rpc_file_access(sid, cmdstr, "exec"))
+ return UBUS_STATUS_PERMISSION_DENIED;
+ }
+
c = malloc(sizeof(*c));
if (!c)
return UBUS_STATUS_UNKNOWN_ERROR;
- if (pipe(opipe) || pipe(epipe))
- return rpc_errno_status();
+ if (pipe(opipe))
+ goto fail_opipe;
+
+ if (pipe(epipe))
+ goto fail_epipe;
switch ((pid = fork()))
{
case -1:
- return rpc_errno_status();
+ goto fail_fork;
case 0:
uloop_done();
+ devnull = open("/dev/null", O_RDWR);
+
+ if (devnull == -1)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ dup2(devnull, 0);
dup2(opipe[1], 1);
dup2(epipe[1], 2);
- close(0);
- close(opipe[0]);
- close(opipe[1]);
- close(epipe[0]);
- close(epipe[1]);
+ rpc_fdclose(devnull);
+ rpc_fdclose(opipe[0]);
+ rpc_fdclose(opipe[1]);
+ rpc_fdclose(epipe[0]);
+ rpc_fdclose(epipe[1]);
arglen = 2;
args = malloc(sizeof(char *) * arglen);
if (!args)
return UBUS_STATUS_UNKNOWN_ERROR;
- args[0] = (char *)cmd;
+ args[0] = (char *)executable;
args[1] = NULL;
if (arg)
if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
continue;
+ if (arglen == 255)
+ {
+ free(args);
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ }
+
arglen++;
+ tmp = realloc(args, sizeof(char *) * arglen);
- if (!(args = realloc(args, sizeof(char *) * arglen)))
+ if (!tmp)
+ {
+ free(args);
return UBUS_STATUS_UNKNOWN_ERROR;
+ }
+ args = tmp;
args[arglen-2] = blobmsg_data(cur);
args[arglen-1] = NULL;
}
}
}
- if (execv(cmd, args))
+ if (execv(executable, args))
return rpc_errno_status();
default:
uloop_process_add(&c->process);
c->timeout.cb = rpc_file_exec_timeout_cb;
- uloop_timeout_set(&c->timeout, RPC_FILE_MAX_RUNTIME);
+ uloop_timeout_set(&c->timeout, *ops->exec_timeout);
close(opipe[1]);
close(epipe[1]);
}
return UBUS_STATUS_OK;
+
+fail_fork:
+ close(epipe[0]);
+ close(epipe[1]);
+
+fail_epipe:
+ close(opipe[0]);
+ close(opipe[1]);
+
+fail_opipe:
+ free(c);
+ return rpc_errno_status();
}
static int
if (!tb[RPC_E_CMD])
return UBUS_STATUS_INVALID_ARGUMENT;
- return rpc_file_exec_run(blobmsg_data(tb[RPC_E_CMD]),
- tb[RPC_E_PARM], tb[RPC_E_ENV], ctx, req);
+ return rpc_file_exec_run(blobmsg_data(tb[RPC_E_CMD]), tb[RPC_E_SESSION],
+ tb[RPC_E_PARM], tb[RPC_E_ENV], ctx, req);
}
-int rpc_file_api_init(struct ubus_context *ctx)
+static int
+rpc_file_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
{
static const struct ubus_method file_methods[] = {
- UBUS_METHOD("read", rpc_file_read, rpc_file_policy),
- UBUS_METHOD("write", rpc_file_write, rpc_file_policy),
- UBUS_METHOD("list", rpc_file_list, rpc_file_policy),
- UBUS_METHOD("stat", rpc_file_stat, rpc_file_policy),
- UBUS_METHOD("exec", rpc_file_exec, rpc_exec_policy),
+ UBUS_METHOD("read", rpc_file_read, rpc_file_RB_policy),
+ UBUS_METHOD("write", rpc_file_write, rpc_file_RW_policy),
+ UBUS_METHOD("list", rpc_file_list, rpc_file_R_policy),
+ UBUS_METHOD("stat", rpc_file_stat, rpc_file_R_policy),
+ UBUS_METHOD("md5", rpc_file_md5, rpc_file_R_policy),
+ UBUS_METHOD("remove", rpc_file_remove, rpc_file_R_policy),
+ UBUS_METHOD("exec", rpc_file_exec, rpc_exec_policy),
};
static struct ubus_object_type file_type =
.n_methods = ARRAY_SIZE(file_methods),
};
+ ops = o;
+
return ubus_add_object(ctx, &obj);
}
+
+struct rpc_plugin rpc_plugin = {
+ .init = rpc_file_api_init
+};