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tools: move lxc-clone to API symbols only

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Closes #2073.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-01-12 14:05:21 +01:00
parent 78485176fd
commit 2f9928f638
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GPG Key ID: 8EB056D53EECB12D
1 changed files with 78 additions and 48 deletions
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126
src/lxc/tools/lxc_clone.c
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@ -17,25 +17,19 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/ */
#include <unistd.h> #include <ctype.h>
#include <errno.h>
#include <getopt.h> #include <getopt.h>
#include <signal.h> #include <signal.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdint.h> #include <stdint.h>
#include <sys/wait.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <errno.h> #include <unistd.h>
#include <ctype.h> #include <sys/types.h>
#include <sys/wait.h>
#include <lxc/lxccontainer.h> #include <lxc/lxccontainer.h>
#include "log.h"
#include "config.h"
#include "lxc.h"
#include "conf.h"
#include "state.h"
/* we pass fssize in bytes */ /* we pass fssize in bytes */
static uint64_t get_fssize(char *s) static uint64_t get_fssize(char *s)
{ {
@ -43,30 +37,33 @@ static uint64_t get_fssize(char *s)
char *end; char *end;
ret = strtoull(s, &end, 0); ret = strtoull(s, &end, 0);
if (end == s) if (end == s) {
{ fprintf(stderr,
fprintf(stderr, "Invalid blockdev size '%s', using default size\n", s); "Invalid blockdev size '%s', using default size\n", s);
return 0; return 0;
} }
while (isblank(*end)) while (isblank(*end))
end++; end++;
if (*end == '\0') if (*end == '\0') {
ret *= 1024ULL * 1024ULL; /* MB by default */ ret *= 1024ULL * 1024ULL; /* MB by default */
else if (*end == 'b' || *end == 'B') } else if (*end == 'b' || *end == 'B') {
ret *= 1ULL; ret *= 1ULL;
else if (*end == 'k' || *end == 'K') } else if (*end == 'k' || *end == 'K') {
ret *= 1024ULL; ret *= 1024ULL;
else if (*end == 'm' || *end == 'M') } else if (*end == 'm' || *end == 'M') {
ret *= 1024ULL * 1024ULL; ret *= 1024ULL * 1024ULL;
else if (*end == 'g' || *end == 'G') } else if (*end == 'g' || *end == 'G') {
ret *= 1024ULL * 1024ULL * 1024ULL; ret *= 1024ULL * 1024ULL * 1024ULL;
else if (*end == 't' || *end == 'T') } else if (*end == 't' || *end == 'T') {
ret *= 1024ULL * 1024ULL * 1024ULL * 1024ULL; ret *= 1024ULL * 1024ULL * 1024ULL * 1024ULL;
else } else {
{ fprintf(stderr, "Invalid blockdev unit size '%c' in '%s', "
fprintf(stderr, "Invalid blockdev unit size '%c' in '%s', using default size\n", *end, s); "using default size\n",
*end, s);
return 0; return 0;
} }
return ret; return ret;
} }
@ -124,42 +121,76 @@ int main(int argc, char *argv[])
if (argc < 3) if (argc < 3)
usage(argv[0]); usage(argv[0]);
while (1) { while (true) {
c = getopt_long(argc, argv, "sB:L:o:n:v:KMHp:P:Rt:h", options, &option_index); c = getopt_long(argc, argv, "sB:L:o:n:v:KMHp:P:Rt:h", options,
&option_index);
if (c == -1) if (c == -1)
break; break;
switch (c) { switch (c) {
case 's': snapshot = 1; break; case 's':
case 'B': bdevtype = optarg; break; snapshot = 1;
case 'L': newsize = get_fssize(optarg); break; break;
case 'o': orig = optarg; break; case 'B':
case 'n': new = optarg; break; bdevtype = optarg;
case 'v': vgname = optarg; break; break;
case 'K': keepname = 1; break; case 'L':
case 'M': keepmac = 1; break; newsize = get_fssize(optarg);
case 'p': lxcpath = optarg; break; break;
case 'P': newpath = optarg; break; case 'o':
case 'R': rename = 1; break; orig = optarg;
case 't': fstype = optarg; break; break;
case 'h': usage(argv[0]); case 'n':
default: break; new = optarg;
break;
case 'v':
vgname = optarg;
break;
case 'K':
keepname = 1;
break;
case 'M':
keepmac = 1;
break;
case 'p':
lxcpath = optarg;
break;
case 'P':
newpath = optarg;
break;
case 'R':
rename = 1;
break;
case 't':
fstype = optarg;
break;
case 'h':
usage(argv[0]);
default:
break;
} }
} }
if (optind < argc && !orig)
if (optind < argc && !orig)
orig = argv[optind++]; orig = argv[optind++];
if (optind < argc && !new)
if (optind < argc && !new)
new = argv[optind++]; new = argv[optind++];
/* arguments for the clone hook */
if (optind < argc) if (optind < argc)
/* arguments for the clone hook */
args = &argv[optind]; args = &argv[optind];
if (!new || !orig) { if (!new || !orig) {
printf("Error: you must provide orig and new names\n"); printf("Error: you must provide orig and new names\n");
usage(argv[0]); usage(argv[0]);
} }
if (snapshot) flags |= LXC_CLONE_SNAPSHOT; if (snapshot)
if (keepname) flags |= LXC_CLONE_KEEPNAME; flags |= LXC_CLONE_SNAPSHOT;
if (keepmac) flags |= LXC_CLONE_KEEPMACADDR; if (keepname)
flags |= LXC_CLONE_KEEPNAME;
if (keepmac)
flags |= LXC_CLONE_KEEPMACADDR;
/* vgname and fstype could be supported by sending them through the /* vgname and fstype could be supported by sending them through the
* bdevdata. However, they currently are not yet. I'm not convinced * bdevdata. However, they currently are not yet. I'm not convinced
@ -201,8 +232,7 @@ int main(int argc, char *argv[])
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
} else { } else {
c2 = c1->clone(c1, new, newpath, flags, bdevtype, NULL, newsize, c2 = c1->clone(c1, new, newpath, flags, bdevtype, NULL, newsize, args);
args);
if (c2 == NULL) { if (c2 == NULL) {
lxc_container_put(c1); lxc_container_put(c1);
fprintf(stderr, "clone failed\n"); fprintf(stderr, "clone failed\n");