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Viewing changes to bin/trampoline/trampoline.c

  • Committer: Matt Giuca
  • Date: 2009-05-26 04:15:23 UTC
  • mto: This revision was merged to the branch mainline in revision 1322.
  • Revision ID: matt.giuca@gmail.com-20090526041523-hsg5q2enlhvjb5y2
doc/man/architecture.rst: User management server.

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bin/trampoline/trampoline.c
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static void usage(const char* nm)
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{
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    fprintf(stderr,
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        "usage: %s [-d] [-u] <uid> <jail> <cwd> <program> [args...]\n", nm);
 
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        "usage: %s [-d] [-u] <uid> <base> <src> <system> <jail> <cwd> <program> [args...]\n", nm);
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    exit(1);
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}
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}
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/* Find the path of the user components of a jail, given a mountpoint. */
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char *jail_src(const char* jailpath)
 
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char *jail_src(const char *jail_src_base, const char *jail_base,
 
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               const char *jailpath)
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{
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    char* src;
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    int srclen;
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/* Check for the validity of a jail in the given path, mounting it if it looks
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 * empty.
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 * TODO: Updating /etc/mtab would be nice. */
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void mount_if_needed(const char* jailpath)
 
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void mount_if_needed(const char *jail_src_base, const char *jail_base,
 
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                     const char *jail_system, const char *jailpath)
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{
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    char *jailsrc;
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    char *jaillib;
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             syslog(LOG_NOTICE, "created mountpoint %s\n", jailpath);
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        }
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        jailsrc = jail_src(jailpath);
 
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        jailsrc = jail_src(jail_src_base, jail_base, jailpath);
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        mountdata = die_if_null(malloc(3 + strlen(jailsrc) + 4 + strlen(jail_system) + 3 + 1));
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        sprintf(mountdata, "br:%s=rw:%s=ro", jailsrc, jail_system);
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        if (mount("none", jailpath, "aufs", 0, mountdata))
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int main(int argc, char* const argv[])
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{
 
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    char* jail_base;
 
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    char* jail_src_base;
 
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    char* jail_system;
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    char* jailpath;
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    char* work_dir;
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    char* prog;
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        arg_num++;
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    }
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    uid = atoi(argv[arg_num++]);
 
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    jail_base = argv[arg_num++];
 
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    jail_src_base = argv[arg_num++];
 
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    jail_system = argv[arg_num++];
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    jailpath = argv[arg_num++];
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    work_dir = argv[arg_num++];
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    prog = argv[arg_num];
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    openlog("trampoline", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_USER);
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    #ifdef IVLE_AUFS_JAILS
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    mount_if_needed(canonical_jailpath);
 
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    mount_if_needed(jail_src_base, jail_base, jail_system, canonical_jailpath);
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    #endif /* IVLE_AUFS_JAILS */
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    /* chroot into the jail.