add TL support
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parent
5c9bc19af4
commit
505431fedc
3 changed files with 39 additions and 12 deletions
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@ -83,7 +83,7 @@ func Init() error {
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func IsolatedRun(command []string,core int) {
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var runId string
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for i:=0;i<runIdLength;i++{
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runId+=string('a'+byte(rand.Int31n(26)))
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}
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for i:=0;i<runIdLength;i++{runId+=string('a'+byte(rand.Int31n(26)))}
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os.mkdir("starter/"+runId,0777);
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exec.Command("starter/starter", );
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}
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@ -52,7 +52,6 @@ void await_setup(int pipe) { // wait for signal from parent
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}
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static int nsrun(void* arg) {
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#define setup "./setup.sh"
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//die when parent dies
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if (prctl(PR_SET_PDEATHSIG, SIGKILL)) die("cannot PR_SET_PDEATHSIG for child process: %m\n");
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struct params *params = (struct params*) arg;
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@ -73,5 +72,4 @@ static int nsrun(void* arg) {
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};
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if (execve(cmd,argv,env) == -1) die("failed to exec,%m");
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return 1;
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#undef setup
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}
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@ -10,6 +10,9 @@
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#include <linux/sched.h>
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#include <stdarg.h>
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#include <time.h>
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#include <limits.h>
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#include <signal.h>
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#include "util.h"
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struct params {
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@ -21,18 +24,35 @@ struct params {
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struct limits {
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size_t memory;
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int core;
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int time;
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};
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struct killparams{
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int time;
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int pid;
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};
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#include "ns_exec.c"
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#include "cgroup_prepare.c"
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static int killafter(void *arg) {
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//die when parent dies
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if (prctl(PR_SET_PDEATHSIG, SIGKILL)) die("cannot PR_SET_PDEATHSIG for child process: %m\n");
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struct killparams* params = (struct killparams*) arg;
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struct timespec tw={params->time/1000,((params->time)%1000)*1000000};
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struct timespec tr;
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nanosleep(&tw,&tr);
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kill(params->pid,SIGKILL);
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}
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//const size_t STACK_SIZE=1000000;
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#define STACK_SIZE 1000000
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static char nmstack[STACK_SIZE];
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static char killstack[STACK_SIZE];
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static void parse_args(int argc, char **argv, struct params *params,struct limits *limits){
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if (argc < 5) {
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printf("usage:\n starter <core_id> <memory_amount> <shared folder> <command, arg1,arg2,...>");
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if (argc < 6) {
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printf("usage:\n starter <core_id> <memory_amount> <time limit in ms> <shared folder> <command, arg1,arg2,...>");
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exit(0);
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}
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argc--;argv++;
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@ -40,6 +60,8 @@ static void parse_args(int argc, char **argv, struct params *params,struct limit
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argc--;argv++;
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limits->memory=atoi(argv[0]);
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argc--;argv++;
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limits->time=atoi(argv[0]);
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argc--;argv++;
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params->shared_folder=argv[0];
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argc--;argv++;
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@ -50,10 +72,8 @@ static void prepare_userns(int pid) {
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char path[100];
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char line[100];
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int uid = getuid();
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int gid = getgid();
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//int unprivileged_uid=1002;
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//int unprivileged_gid=1002;
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int uid = 0;
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int gid = 0;
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int unprivileged_uid=66534;
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int unprivileged_gid=65534;
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@ -70,8 +90,13 @@ static void prepare_userns(int pid) {
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write_file(path, line);
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}
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int main(int argc,char** argv) {
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//getting binary folder
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char bin_path[PATH_MAX];
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if (realpath (argv[0], bin_path) == 0) die("unable to resolve real path: %m");
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for(int i = strlen(bin_path);i>0 && bin_path[i]!='/';i--) bin_path[i]=0;
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if(chdir(bin_path)) die("unable to chdir: %m");
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//setting random seed
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srand(time(NULL));
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struct params params;
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memset(¶ms, 0, sizeof(struct params));
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@ -91,6 +116,10 @@ int main(int argc,char** argv) {
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if (nsrun_pid<0) {die("faled to clone");}
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add_to_cgroup(nsrun_pid);
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if (write(pipe, "OK", 2) != 2) die("Failed to write to pipe: %m");//report readiness
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struct killparams killparams;
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killparams.time=limits.time;
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killparams.pid=nsrun_pid;
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clone(killafter,killstack+STACK_SIZE,SIGCHLD,&killparams);
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if (waitpid(nsrun_pid, NULL, 0) == -1) die("Failed to wait pid %d: %m\n", nsrun_pid);
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//int pipe=params.fd[1];
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remove_cgroup();
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