diff options
Diffstat (limited to 'src/basic')
| -rw-r--r-- | src/basic/cgroup-util.h | 4 | ||||
| -rw-r--r-- | src/basic/hostname-util.c | 1 | ||||
| -rw-r--r-- | src/basic/terminal-util.c | 26 | ||||
| -rw-r--r-- | src/basic/user-util.h | 16 |
4 files changed, 35 insertions, 12 deletions
diff --git a/src/basic/cgroup-util.h b/src/basic/cgroup-util.h index a509a1775c..f1617a16be 100644 --- a/src/basic/cgroup-util.h +++ b/src/basic/cgroup-util.h @@ -112,6 +112,10 @@ static inline bool CGROUP_BLKIO_WEIGHT_IS_OK(uint64_t x) { (x >= CGROUP_BLKIO_WEIGHT_MIN && x <= CGROUP_BLKIO_WEIGHT_MAX); } +/* Default resource limits */ +#define DEFAULT_TASKS_MAX_PERCENTAGE 15U /* 15% of PIDs, 4915 on default settings */ +#define DEFAULT_USER_TASKS_MAX_PERCENTAGE 33U /* 33% of PIDs, 10813 on default settings */ + /* * General rules: * diff --git a/src/basic/hostname-util.c b/src/basic/hostname-util.c index 13c3bb6446..e44a357287 100644 --- a/src/basic/hostname-util.c +++ b/src/basic/hostname-util.c @@ -163,7 +163,6 @@ char* hostname_cleanup(char *s) { *(d++) = *p; dot = false; } - } if (dot && d > s) diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c index f0a46c48cf..bfa936bd4e 100644 --- a/src/basic/terminal-util.c +++ b/src/basic/terminal-util.c @@ -39,6 +39,7 @@ #include <unistd.h> #include "alloc-util.h" +#include "env-util.h" #include "fd-util.h" #include "fileio.h" #include "fs-util.h" @@ -1191,12 +1192,9 @@ int open_terminal_in_namespace(pid_t pid, const char *name, int mode) { return receive_one_fd(pair[0], 0); } -bool terminal_is_dumb(void) { +static bool getenv_terminal_is_dumb(void) { const char *e; - if (!on_tty()) - return true; - e = getenv("TERM"); if (!e) return true; @@ -1204,15 +1202,25 @@ bool terminal_is_dumb(void) { return streq(e, "dumb"); } +bool terminal_is_dumb(void) { + if (!on_tty()) + return true; + + return getenv_terminal_is_dumb(); +} + bool colors_enabled(void) { static int enabled = -1; if (_unlikely_(enabled < 0)) { - const char *colors; - - colors = getenv("SYSTEMD_COLORS"); - if (colors) - enabled = parse_boolean(colors) != 0; + int val; + + val = getenv_bool("SYSTEMD_COLORS"); + if (val >= 0) + enabled = val; + else if (getpid() == 1) + /* PID1 outputs to the console without holding it open all the time */ + enabled = !getenv_terminal_is_dumb(); else enabled = !terminal_is_dumb(); } diff --git a/src/basic/user-util.h b/src/basic/user-util.h index 36f71fb004..f569363811 100644 --- a/src/basic/user-util.h +++ b/src/basic/user-util.h @@ -20,6 +20,7 @@ ***/ #include <stdbool.h> +#include <stdint.h> #include <sys/types.h> #include <unistd.h> @@ -57,8 +58,19 @@ int take_etc_passwd_lock(const char *root); #define UID_INVALID ((uid_t) -1) #define GID_INVALID ((gid_t) -1) -/* The following macros add 1 when converting things, since UID 0 is a - * valid UID, while the pointer NULL is special */ +/* Let's pick a UIDs within the 16bit range, so that we are compatible with containers using 16bit + * user namespacing. At least on Fedora normal users are allocated until UID 60000, hence do not + * allocate from below this. Also stay away from the upper end of the range as that is often used + * for overflow/nobody users. */ +#define DYNAMIC_UID_MIN ((uid_t) UINT32_C(0x0000EF00)) +#define DYNAMIC_UID_MAX ((uid_t) UINT32_C(0x0000FFEF)) + +static inline bool uid_is_dynamic(uid_t uid) { + return DYNAMIC_UID_MIN <= uid && uid <= DYNAMIC_UID_MAX; +} + +/* The following macros add 1 when converting things, since UID 0 is a valid UID, while the pointer + * NULL is special */ #define PTR_TO_UID(p) ((uid_t) (((uintptr_t) (p))-1)) #define UID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) |