banan-os/kernel/include/kernel/Credentials.h

61 lines
1.3 KiB
C++

#pragma once
#include <BAN/Vector.h>
#include <sys/types.h>
namespace Kernel
{
class Credentials
{
public:
Credentials(uid_t ruid, uid_t euid, gid_t rgid, gid_t egid)
: m_ruid(ruid), m_euid(euid), m_suid(0)
, m_rgid(rgid), m_egid(egid), m_sgid(0)
{ }
uid_t ruid() const { return m_ruid; }
uid_t euid() const { return m_euid; }
uid_t suid() const { return m_suid; }
gid_t rgid() const { return m_rgid; }
gid_t egid() const { return m_egid; }
gid_t sgid() const { return m_sgid; }
void set_ruid(uid_t uid) { m_ruid = uid; }
void set_euid(uid_t uid) { m_euid = uid; }
void set_suid(uid_t uid) { m_suid = uid; }
void set_rgid(gid_t gid) { m_rgid = gid; }
void set_egid(gid_t gid) { m_egid = gid; }
void set_sgid(gid_t gid) { m_sgid = gid; }
bool is_superuser() const { return m_euid == 0; }
bool has_egid(gid_t) const;
BAN::ErrorOr<void> initialize_supplementary_groups();
private:
BAN::ErrorOr<BAN::String> find_username() const;
private:
uid_t m_ruid, m_euid, m_suid;
gid_t m_rgid, m_egid, m_sgid;
BAN::Vector<gid_t> m_supplementary;
};
}
namespace BAN::Formatter
{
template<typename F>
void print_argument(F putc, const Kernel::Credentials& credentials, const ValueFormat&)
{
print(putc, "(ruid {}, euid {})", credentials.ruid(), credentials.euid());
}
}