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remap: Add cmdline option to allow linked remap

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By default crtools shouldn't modify the environment, except for
killing the dumped tasks. The link remap does so and should sit
under explicit cmdline option.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2012-09-26 06:39:23 +04:00
parent fe187fe0ed
commit 1be08acc7c
5 changed files with 16 additions and 1 deletions
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6
crtools.c
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@@ -98,6 +98,7 @@ int main(int argc, char *argv[])
{ "pidfile", required_argument, 0, 46},
{ "veth-pair", required_argument, 0, 47},
{ "action-script", required_argument, 0, 49},
{ LREMAP_PARAM, no_argument, 0, 41},
{ },
};
@@ -160,6 +161,10 @@ int main(int argc, char *argv[])
log_level++;
}
break;
case 41:
pr_info("Will allow link remaps on FS\n");
opts.link_remap_ok = true;
break;
case 42:
pr_info("Will dump TCP connections\n");
opts.tcp_established_ok = true;
@@ -302,6 +307,7 @@ usage:
pr_msg(" -r|--root [PATH] change the root filesystem (when run in mount namespace)\n");
pr_msg(" --evasive-devices use any path to a device file if the original one is inaccessible\n");
pr_msg(" --veth-pair [IN=OUT] correspondence between outside and inside names of veth devices\n");
pr_msg(" --link-remap allow to link unlinked files back when possible (modifies FS till restore)\n");
pr_msg(" --action-script [SCR] add an external action script\n");
pr_msg(" The environment variable CRTOOL_SCRIPT_ACTION contains one of the actions:\n");
pr_msg(" * network-lock - lock network in a target network namespace");