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| author | Giuseppe Scrivano <gscrivan@redhat.com> | 2018-07-05 12:03:01 +0200 |
|---|---|---|
| committer | Atomic Bot <atomic-devel@projectatomic.io> | 2018-07-05 13:30:15 +0000 |
| commit | a1545fe6e4749444204f27f5c04034f9415d4757 (patch) | |
| tree | b930f8c5a95c217ba1ce63db8a9574e79b15cdfd /pkg/rootless/rootless_linux.go | |
| parent | e38272047fbafb9fb35419e356d4576824585c23 (diff) | |
| download | podman-a1545fe6e4749444204f27f5c04034f9415d4757.tar.gz podman-a1545fe6e4749444204f27f5c04034f9415d4757.tar.bz2 podman-a1545fe6e4749444204f27f5c04034f9415d4757.zip | |
rootless: add function to retrieve the original UID
After we re-exec in the userNS os.Getuid() returns the new UID (= 0)
which is not what we want to use.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1048
Approved by: mheon
Diffstat (limited to 'pkg/rootless/rootless_linux.go')
| -rw-r--r-- | pkg/rootless/rootless_linux.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pkg/rootless/rootless_linux.go b/pkg/rootless/rootless_linux.go index 5b4094bf2..70fa6b152 100644 --- a/pkg/rootless/rootless_linux.go +++ b/pkg/rootless/rootless_linux.go @@ -8,6 +8,7 @@ import ( "os" gosignal "os/signal" "runtime" + "strconv" "syscall" "github.com/containers/storage/pkg/idtools" @@ -26,6 +27,16 @@ func IsRootless() bool { return os.Getuid() != 0 || os.Getenv("_LIBPOD_USERNS_CONFIGURED") != "" } +// GetRootlessUID returns the UID of the user in the parent userNS +func GetRootlessUID() int { + uidEnv := os.Getenv("_LIBPOD_ROOTLESS_UID") + if uidEnv != "" { + u, _ := strconv.Atoi(uidEnv) + return u + } + return os.Getuid() +} + // BecomeRootInUserNS re-exec podman in a new userNS func BecomeRootInUserNS() (bool, error) { |