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namespace: open images per namespace to show them

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It's preparation to replace pid on id in image names.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2013-09-30 17:16:45 +04:00
committed by Pavel Emelyanov
parent b1b02fe676
commit 762d932cbb
1 changed files with 40 additions and 12 deletions
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52
namespaces.c
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@@ -462,25 +462,53 @@ int prepare_namespace(int pid, unsigned long clone_flags)
int try_show_namespaces(int ns_pid) int try_show_namespaces(int ns_pid)
{ {
struct cr_fdset *fdset; struct cr_fdset *fdset;
int i; int i, fd;
pr_msg("Namespaces for %d:\n", ns_pid); pr_msg("Namespaces for %d:\n", ns_pid);
pr_msg("----------------------------------------\n");
fdset = cr_ns_fdset_open(ns_pid, O_SHOW);
if (!fdset)
return -1;
for (i = _CR_FD_NS_FROM + 1; i < _CR_FD_NS_TO; i++) { fdset = cr_fdset_open(ns_pid, _CR_FD_NETNS_FROM, _CR_FD_NETNS_TO, O_SHOW);
int fd; if (fdset) {
pr_msg("-------------------NETNS---------------------\n");
for (i = _CR_FD_NETNS_FROM + 1; i < _CR_FD_NETNS_TO; i++) {
int fd;
fd = fdset_fd(fdset, i); fd = fdset_fd(fdset, i);
if (fd == -1) if (fd == -1)
continue; continue;
cr_parse_fd(fd, fdset_template[i].magic); cr_parse_fd(fd, fdset_template[i].magic);
}
close_cr_fdset(&fdset);
} }
fdset = cr_fdset_open(ns_pid, _CR_FD_IPCNS_FROM, _CR_FD_IPCNS_TO, O_SHOW);
if (fdset) {
pr_msg("-------------------IPCNS---------------------\n");
for (i = _CR_FD_IPCNS_FROM + 1; i < _CR_FD_IPCNS_TO; i++) {
fd = fdset_fd(fdset, i);
if (fd == -1)
continue;
cr_parse_fd(fd, fdset_template[i].magic);
}
close_cr_fdset(&fdset);
}
fd = open_image(CR_FD_UTSNS, O_SHOW, ns_pid);
if (fd >= 0) {
pr_msg("-------------------UTSNS---------------------\n");
cr_parse_fd(fd, fdset_template[CR_FD_UTSNS].magic);
close(fd);
}
fd = open_image(CR_FD_MNTS, O_SHOW, ns_pid);
if (fd > 0) {
pr_msg("-------------------MNTNS---------------------\n");
cr_parse_fd(fd, fdset_template[CR_FD_MNTS].magic);
close(fd);
}
pr_msg("---[ end of %d namespaces ]---\n", ns_pid); pr_msg("---[ end of %d namespaces ]---\n", ns_pid);
close_cr_fdset(&fdset);
return 0; return 0;
} }