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added support for MEMLOCK rlimit
[util-vserver-pl.git]
/
src
/
planetlab.c
diff --git
a/src/planetlab.c
b/src/planetlab.c
index
689ced4
..
90ba4dd
100644
(file)
--- a/
src/planetlab.c
+++ b/
src/planetlab.c
@@
-44,6
+44,8
@@
POSSIBILITY OF SUCH DAMAGE.
#include <ctype.h>
#include <sys/resource.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/resource.h>
#include <fcntl.h>
+#define _GNU_SOURCE
+#include <sched.h>
#include "vserver.h"
#include "planetlab.h"
#include "vserver.h"
#include "planetlab.h"
@@
-59,12
+61,11
@@
POSSIBILITY OF SUCH DAMAGE.
#endif
static int
#endif
static int
-create_context(xid_t ctx, uint64_t bcaps)
+create_context(xid_t ctx, uint64_t bcaps
, uint32_t unshare_flags
)
{
struct vc_ctx_caps vc_caps;
struct vc_net_flags vc_nf;
struct vc_net_caps vc_ncaps;
{
struct vc_ctx_caps vc_caps;
struct vc_net_flags vc_nf;
struct vc_net_caps vc_ncaps;
- uint32_t unshare_mask;
/* Create network context */
if (vc_net_create(ctx) == VC_NOCTX) {
/* Create network context */
if (vc_net_create(ctx) == VC_NOCTX) {
@@
-96,11
+97,10
@@
process:
if (vc_ctx_create(ctx, 0) == VC_NOCTX)
return -1;
if (vc_ctx_create(ctx, 0) == VC_NOCTX)
return -1;
- /* Unshare the net namespace if the slice if requested in the local slice configuration */
- unshare_mask = get_space_flag(ctx);
- if (unshare_mask != 0) {
- sys_unshare(unshare_mask);
- vc_set_namespace(ctx, unshare_mask | vc_get_space_mask());
+ if (unshare_flags != 0) {
+ unshare(unshare_flags);
+ unshare_flags |= vc_get_space_mask();
+ vc_set_namespace(ctx, unshare_flags);
}
/* Set capabilities - these don't take effect until SETUP flag is unset */
}
/* Set capabilities - these don't take effect until SETUP flag is unset */
@@
-152,11
+152,15
@@
pl_chcontext(xid_t ctx, uint64_t bcaps, const struct sliver_resources *slr)
if (vc_get_cflags(ctx, &vc_flags))
{
if (vc_get_cflags(ctx, &vc_flags))
{
+ uint32_t unshare_flags;
if (errno != ESRCH)
return -1;
if (errno != ESRCH)
return -1;
+ /* Unshare the net namespace if the slice if requested in the local slice configuration */
+ unshare_flags = get_space_flag(ctx);
+
/* context doesn't exist - create it */
/* context doesn't exist - create it */
- if (create_context(ctx, bcaps))
+ if (create_context(ctx, bcaps
, unshare_flags
))
{
if (errno == EEXIST)
/* another process beat us in a race */
{
if (errno == EEXIST)
/* another process beat us in a race */
@@
-188,6
+192,14
@@
pl_chcontext(xid_t ctx, uint64_t bcaps, const struct sliver_resources *slr)
migrate:
if (net_migrated || !vc_net_migrate(ctx))
{
migrate:
if (net_migrated || !vc_net_migrate(ctx))
{
+ uint32_t unshare_flags;
+ /* Unshare the net namespace if the slice if requested in the local slice configuration */
+ unshare_flags = get_space_flag(ctx);
+ if (unshare_flags != 0) {
+ unshare_flags |=vc_get_space_mask();
+ vc_enter_namespace(ctx, unshare_flags);
+ }
+
if (!vc_tag_migrate(ctx) && !vc_ctx_migrate(ctx, 0))
break; /* done */
net_migrated = 1;
if (!vc_tag_migrate(ctx) && !vc_ctx_migrate(ctx, 0))
break; /* done */
net_migrated = 1;
@@
-288,6
+300,10
@@
pl_get_limits(const char *context, struct sliver_resources *slr)
{"rlimits/openfd.soft", TYPE_LONG, &slr->vs_openfd.soft},
{"rlimits/openfd.min", TYPE_LONG, &slr->vs_openfd.min},
{"rlimits/openfd.soft", TYPE_LONG, &slr->vs_openfd.soft},
{"rlimits/openfd.min", TYPE_LONG, &slr->vs_openfd.min},
+ {"rlimits/memlock.hard", TYPE_LONG, &slr->vs_memlock.hard},
+ {"rlimits/memlock.soft", TYPE_LONG, &slr->vs_memlock.soft},
+ {"rlimits/memlock.min", TYPE_LONG, &slr->vs_memlock.min},
+
{"personality", TYPE_PERS, &slr->personality},
{0,0}
{"personality", TYPE_PERS, &slr->personality},
{0,0}
@@
-311,6
+327,10
@@
pl_get_limits(const char *context, struct sliver_resources *slr)
slr->vs_openfd.soft = VC_LIM_KEEP;
slr->vs_openfd.min = VC_LIM_KEEP;
slr->vs_openfd.soft = VC_LIM_KEEP;
slr->vs_openfd.min = VC_LIM_KEEP;
+ slr->vs_memlock.hard = VC_LIM_KEEP;
+ slr->vs_memlock.soft = VC_LIM_KEEP;
+ slr->vs_memlock.min = VC_LIM_KEEP;
+
slr->personality = 0;
cwd = open(".", O_RDONLY);
slr->personality = 0;
cwd = open(".", O_RDONLY);
@@
-426,5
+446,6
@@
pl_set_ulimits(const struct sliver_resources *slr)
set_one_ulimit(RLIMIT_AS, &slr->vs_as);
set_one_ulimit(RLIMIT_NPROC, &slr->vs_nproc);
set_one_ulimit(RLIMIT_NOFILE, &slr->vs_openfd);
set_one_ulimit(RLIMIT_AS, &slr->vs_as);
set_one_ulimit(RLIMIT_NPROC, &slr->vs_nproc);
set_one_ulimit(RLIMIT_NOFILE, &slr->vs_openfd);
+ set_one_ulimit(RLIMIT_MEMLOCK, &slr->vs_memlock);
return set_personality(slr->personality);
}
return set_personality(slr->personality);
}