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packages.info: switch user

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This commit is contained in:
陈浩南
2025-02-02 22:01:46 +08:00
parent 4ebd8b0c71
commit f195c05031
1 changed files with 15 additions and 1 deletions
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16
packages/info/src/main.cpp
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@@ -10,6 +10,18 @@ extern "C"
[[gnu::visibility("default")]] int slurm_spank_exit(spank_t spank, int ac, char** argv);
}
struct switch_user
{
boost::system::error_code on_exec_setup(auto&&...)
{
// first set gid then set uid, otherwise failed
if (setegid(1000) != 0 || seteuid(1000) != 0)
return boost::system::error_code{errno, boost::system::system_category()};
else return {};
return {};
}
};
int slurm_spank_exit(spank_t spank, int ac, char** argv)
{
using namespace biu::literals;
@@ -24,6 +36,7 @@ int slurm_spank_exit(spank_t spank, int ac, char** argv)
{
ss << "info for job {}:\n"_f(jid);
job_info_msg_t* job_info;
// slurm_init(nullptr);
auto result = slurm_load_job(&job_info, jid, 0);
if (result != SLURM_SUCCESS) ss << "error loading job info: {}\n"_f(slurm_strerror(result));
else if (job_info->record_count != 1) ss << "record_count {} != 1\n"_f(job_info->record_count);
@@ -54,7 +67,8 @@ int slurm_spank_exit(spank_t spank, int ac, char** argv)
boost::asio::io_context context;
boost::system::error_code ec;
boost::asio::readable_pipe rp{context};
boost::process::v2::process proc(context, boost::process::search_path("whoami"), {}, boost::process::v2::process_stdio{nullptr, rp, nullptr});
boost::process::v2::process proc(context, "/run/current-system/sw/bin/capsh", { "--print" }, boost::process::v2::process_stdio{nullptr, rp, nullptr}, switch_user{});
std::string output;
boost::asio::read(rp, boost::asio::dynamic_buffer(output), ec);
if (ec != boost::asio::error::eof) ss << "error reading whoami: {}\n"_f(ec.message());