diff options
Diffstat (limited to 'meta-security/recipes-test/app-runas')
| -rw-r--r-- | meta-security/recipes-test/app-runas/app-runas.bb | 17 | ||||
| -rw-r--r-- | meta-security/recipes-test/app-runas/files/app-runas.cpp | 221 |
2 files changed, 238 insertions, 0 deletions
diff --git a/meta-security/recipes-test/app-runas/app-runas.bb b/meta-security/recipes-test/app-runas/app-runas.bb new file mode 100644 index 000000000..95725c2e7 --- /dev/null +++ b/meta-security/recipes-test/app-runas/app-runas.bb @@ -0,0 +1,17 @@ +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://app-runas.cpp;beginline=3;endline=19;md5=1ca447189bb2c54039033d50d8982d92" +SRC_URI = "file://app-runas.cpp" +DEPENDS = "security-manager" +S = "${WORKDIR}" + +do_compile () { + ${CXX} ${CXXFLAGS} ${S}/app-runas.cpp `pkg-config --cflags --libs security-manager` -o app-runas +} + +do_install () { + install -D app-runas ${D}/${bindir}/app-runas + chmod u+s ${D}/${bindir}/app-runas +} + +inherit deploy-files +DEPLOY_FILES_FROM[target] = "app-runas" diff --git a/meta-security/recipes-test/app-runas/files/app-runas.cpp b/meta-security/recipes-test/app-runas/files/app-runas.cpp new file mode 100644 index 000000000..58fa15504 --- /dev/null +++ b/meta-security/recipes-test/app-runas/files/app-runas.cpp @@ -0,0 +1,221 @@ +// (C) Copyright 2015 Intel Corporation +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +#include <security-manager.h> + +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/wait.h> + +#include <string> +#include <vector> + +#define CHECK(x) { \ + int _ret = x; \ + if (_ret != SECURITY_MANAGER_SUCCESS) { \ + fprintf(stderr, "Failure in %s:%d: %s: %d = %s\n", __FILE__, __LINE__, #x, _ret, security_manager_strerror((lib_retcode)_ret)); \ + return EXIT_FAILURE; \ + } \ + } + +static int do_install(app_inst_req *preq) +{ + CHECK(security_manager_app_install(preq)); + return 0; +} + +static int do_uninstall(app_inst_req *preq) +{ + CHECK(security_manager_app_uninstall(preq)); + return 0; +} + +static int do_run(const char *appid, const char *uid, const char *file, char *const argv[]) +{ + if (!appid || !uid) { + fprintf(stderr, "Always need appid, uid for app startup.\n"); + return EXIT_FAILURE; + } + + pid_t child = fork(); + if (child == -1) { + perror("fork"); + return EXIT_FAILURE; + } else if (child) { + int status; + child = waitpid(child, &status, 0); + if (child == -1) { + perror("waitpid"); + return EXIT_FAILURE; + } + } else { + // We cannot change the UID before security_manager_prepare_app() + // (because then setup_smack() fails to change Smack labels of + // our fds) and we cannot change the UID after it (because then + // security_manager_drop_process_privileges() has already dropped + // the necessary CAP_SETUID. + // Instead, we need to do the steps from security_manager_prepare_app() + // ourselves. + CHECK(security_manager_set_process_label_from_appid(appid)); + CHECK(security_manager_set_process_groups_from_appid(appid)); + if (setuid(atoi(uid))) { + fprintf(stderr, "setuid(%s): %s\n", uid, strerror(errno)); + exit(EXIT_FAILURE); + } + CHECK(security_manager_drop_process_privileges()); + // CHECK(security_manager_prepare_app(appid)); + + execvp(file, argv); + fprintf(stderr, "execvp(%s): %s", argv[optind], strerror(errno)); + exit(EXIT_FAILURE); + } + return 0; +} + +int main(int argc, char **argv) +{ + int flags, opt; + int nsecs, tfnd; + const char *appid = NULL; + const char *pkgid = NULL; + const char *uid = NULL; + std::vector<const char *> privileges; + std::vector< std::pair<app_install_path_type, std::string> > paths; + int install = 0, uninstall = 0, run = 0; + + while ((opt = getopt(argc, argv, "a:p:u:r:t:ide")) != -1) { + switch (opt) { + case 'a': + appid = optarg; + break; + case 'p': + pkgid = optarg; + break; + case 'u': + uid = optarg; + break; + case 'r': + privileges.push_back(optarg); + break; + case 't': { + const char *colon = strchr(optarg, ':'); + if (!colon) { + fprintf(stderr, "-t parameter must be of the format <type>:<path>"); + return EXIT_FAILURE; + } + std::string typestr(optarg, colon - optarg); + std::string path(colon + 1); + app_install_path_type type; + if (typestr == "private") { + type = SECURITY_MANAGER_PATH_PRIVATE; + } else if (typestr == "public") { + type = SECURITY_MANAGER_PATH_PUBLIC; + } else if (typestr == "public-ro") { + type = SECURITY_MANAGER_PATH_PUBLIC_RO; + } else if (typestr == "rw") { + type = SECURITY_MANAGER_PATH_RW; + } else if (typestr == "ro") { + type = SECURITY_MANAGER_PATH_PRIVATE; + } else { + fprintf(stderr, "Invalid -t type: %s", typestr.c_str()); + return EXIT_FAILURE; + } + paths.push_back(std::make_pair(type, path)); + break; + } + case 'i': + install = 1; + break; + case 'd': + uninstall = 1; + break; + case 'e': + run = 1; + break; + default: /* '?' */ + fprintf(stderr, + "Usage: %s -i|-e|-d -a appid -u uid -p pkgid -r privilege1 ... -t private|public|public-ro|rw:<path> ... -- command args\n" + " -i = install, command ignored\n" + " -e = run command, privileges and pkgid ignored\n" + " -d = uninstall, command and privileges ignored\n" + " Install, run, and uninstall can be combined into a single invocation.\n", + argv[0]); + exit(EXIT_FAILURE); + break; + } + } + + if ((install || uninstall) && + (!appid || !pkgid || !uid)) { + fprintf(stderr, "Always need appid, pkgid, uid for app install or uninstall.\n"); + return EXIT_FAILURE; + } + if (run && optind >= argc) { + fprintf(stderr, "Expected command after options\n"); + return EXIT_FAILURE; + } + + app_inst_req *preq; + CHECK(security_manager_app_inst_req_new(&preq)); + if (appid) { + CHECK(security_manager_app_inst_req_set_app_id(preq, appid)); + } + if (pkgid) { + CHECK(security_manager_app_inst_req_set_pkg_id(preq, pkgid)); + } + if (uid) { + CHECK(security_manager_app_inst_req_set_uid(preq, atoi(uid))); + } + for (size_t i = 0; i < paths.size(); i++) { + security_manager_app_inst_req_add_path(preq, paths[i].second.c_str(), paths[i].first); + } + for (size_t i = 0; i < privileges.size(); i++) { + CHECK(security_manager_app_inst_req_add_privilege(preq, privileges[i])); + } + + int result = 0; + bool install_failed = false; + if (install) { + result = do_install(preq); + if (result) { + install_failed = true; + } + } + if (run && !install_failed) { + int run_result = do_run(appid, uid, argv[optind], argv + optind); + if (run_result) { + result = run_result; + } + } + if (uninstall && !install_failed) { + int uninstall_result = do_uninstall(preq); + if (uninstall_result) { + result = uninstall_result; + } + } + + security_manager_app_inst_req_free(preq); + return result; +} |