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-rw-r--r--src/shared/acl-util.h2
-rw-r--r--src/shared/cgroup-show.h1
-rw-r--r--src/shared/conf-parser.h2
-rw-r--r--src/shared/dns-domain.c293
-rw-r--r--src/shared/dns-domain.h11
-rw-r--r--src/shared/efivars.h1
-rw-r--r--src/shared/logs-show.h2
-rw-r--r--src/shared/machine-image.h4
-rw-r--r--src/shared/nss-util.h6
9 files changed, 314 insertions, 8 deletions
diff --git a/src/shared/acl-util.h b/src/shared/acl-util.h
index cf612e8722..256a6a5900 100644
--- a/src/shared/acl-util.h
+++ b/src/shared/acl-util.h
@@ -23,9 +23,9 @@
#ifdef HAVE_ACL
+#include <acl/libacl.h>
#include <stdbool.h>
#include <sys/acl.h>
-#include <acl/libacl.h>
#include "macro.h"
diff --git a/src/shared/cgroup-show.h b/src/shared/cgroup-show.h
index aa832454b5..5842bdd15e 100644
--- a/src/shared/cgroup-show.h
+++ b/src/shared/cgroup-show.h
@@ -23,6 +23,7 @@
#include <stdbool.h>
#include <sys/types.h>
+
#include "logs-show.h"
int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, bool kernel_threads, OutputFlags flags);
diff --git a/src/shared/conf-parser.h b/src/shared/conf-parser.h
index fb0234baae..2872b22d9d 100644
--- a/src/shared/conf-parser.h
+++ b/src/shared/conf-parser.h
@@ -21,8 +21,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdio.h>
#include <stdbool.h>
+#include <stdio.h>
#include "macro.h"
diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c
index 423ccca9cc..e6aad39c74 100644
--- a/src/shared/dns-domain.c
+++ b/src/shared/dns-domain.c
@@ -29,6 +29,7 @@
#include "hexdecoct.h"
#include "parse-util.h"
#include "string-util.h"
+#include "utf8.h"
int dns_label_unescape(const char **name, char *dest, size_t sz) {
const char *n;
@@ -546,6 +547,73 @@ int dns_name_endswith(const char *name, const char *suffix) {
}
}
+int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret) {
+ const char *n, *s, *saved_before = NULL, *saved_after = NULL, *prefix;
+ int r, q, k, w;
+
+ assert(name);
+ assert(old_suffix);
+ assert(new_suffix);
+ assert(ret);
+
+ n = name;
+ s = old_suffix;
+
+ for (;;) {
+ char ln[DNS_LABEL_MAX+1], ls[DNS_LABEL_MAX+1];
+
+ if (!saved_before)
+ saved_before = n;
+
+ r = dns_label_unescape(&n, ln, sizeof(ln));
+ if (r < 0)
+ return r;
+ k = dns_label_undo_idna(ln, r, ln, sizeof(ln));
+ if (k < 0)
+ return k;
+ if (k > 0)
+ r = k;
+
+ if (!saved_after)
+ saved_after = n;
+
+ q = dns_label_unescape(&s, ls, sizeof(ls));
+ if (q < 0)
+ return q;
+ w = dns_label_undo_idna(ls, q, ls, sizeof(ls));
+ if (w < 0)
+ return w;
+ if (w > 0)
+ q = w;
+
+ if (r == 0 && q == 0)
+ break;
+ if (r == 0 && saved_after == n) {
+ *ret = NULL; /* doesn't match */
+ return 0;
+ }
+
+ ln[r] = ls[q] = 0;
+
+ if (r != q || strcasecmp(ln, ls)) {
+
+ /* Not the same, let's jump back, and try with the next label again */
+ s = old_suffix;
+ n = saved_after;
+ saved_after = saved_before = NULL;
+ }
+ }
+
+ /* Found it! Now generate the new name */
+ prefix = strndupa(name, saved_before - name);
+
+ r = dns_name_concat(prefix, new_suffix, ret);
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
int dns_name_between(const char *a, const char *b, const char *c) {
int n;
@@ -749,3 +817,228 @@ int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len) {
return out - buffer;
}
+
+static bool srv_type_label_is_valid(const char *label, size_t n) {
+ size_t k;
+
+ assert(label);
+
+ if (n < 2) /* Label needs to be at least 2 chars long */
+ return false;
+
+ if (label[0] != '_') /* First label char needs to be underscore */
+ return false;
+
+ /* Second char must be a letter */
+ if (!(label[1] >= 'A' && label[1] <= 'Z') &&
+ !(label[1] >= 'a' && label[1] <= 'z'))
+ return false;
+
+ /* Third and further chars must be alphanumeric or a hyphen */
+ for (k = 2; k < n; k++) {
+ if (!(label[k] >= 'A' && label[k] <= 'Z') &&
+ !(label[k] >= 'a' && label[k] <= 'z') &&
+ !(label[k] >= '0' && label[k] <= '9') &&
+ label[k] != '-')
+ return false;
+ }
+
+ return true;
+}
+
+int dns_srv_type_verify(const char *name) {
+ unsigned c = 0;
+ int r;
+
+ if (!name)
+ return 0;
+
+ for (;;) {
+ char label[DNS_LABEL_MAX];
+
+ /* This more or less implements RFC 6335, Section 5.1 */
+
+ r = dns_label_unescape(&name, label, sizeof(label));
+ if (r == -EINVAL)
+ return 0;
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (c >= 2)
+ return 0;
+
+ if (!srv_type_label_is_valid(label, r))
+ return 0;
+
+ c++;
+ }
+
+ return c == 2; /* exactly two labels */
+}
+
+bool dns_service_name_is_valid(const char *name) {
+ size_t l;
+
+ /* This more or less implements RFC 6763, Section 4.1.1 */
+
+ if (!name)
+ return false;
+
+ if (!utf8_is_valid(name))
+ return false;
+
+ if (string_has_cc(name, NULL))
+ return false;
+
+ l = strlen(name);
+ if (l <= 0)
+ return false;
+ if (l > 63)
+ return false;
+
+ return true;
+}
+
+int dns_service_join(const char *name, const char *type, const char *domain, char **ret) {
+ _cleanup_free_ char *escaped = NULL, *n = NULL;
+ int r;
+
+ assert(type);
+ assert(domain);
+ assert(ret);
+
+ if (!dns_srv_type_verify(type))
+ return -EINVAL;
+
+ if (!name)
+ return dns_name_concat(type, domain, ret);
+
+ if (!dns_service_name_is_valid(name))
+ return -EINVAL;
+
+ r = dns_label_escape(name, strlen(name), &escaped);
+ if (r < 0)
+ return r;
+
+ r = dns_name_concat(type, domain, &n);
+ if (r < 0)
+ return r;
+
+ return dns_name_concat(escaped, n, ret);
+}
+
+static bool dns_service_name_label_is_valid(const char *label, size_t n) {
+ char *s;
+
+ assert(label);
+
+ if (memchr(label, 0, n))
+ return false;
+
+ s = strndupa(label, n);
+ return dns_service_name_is_valid(s);
+}
+
+int dns_service_split(const char *joined, char **_name, char **_type, char **_domain) {
+ _cleanup_free_ char *name = NULL, *type = NULL, *domain = NULL;
+ const char *p = joined, *q = NULL, *d = NULL;
+ char a[DNS_LABEL_MAX], b[DNS_LABEL_MAX], c[DNS_LABEL_MAX];
+ int an, bn, cn, r;
+ unsigned x = 0;
+
+ assert(joined);
+
+ /* Get first label from the full name */
+ an = dns_label_unescape(&p, a, sizeof(a));
+ if (an < 0)
+ return an;
+
+ if (an > 0) {
+ x++;
+
+ /* If there was a first label, try to get the second one */
+ bn = dns_label_unescape(&p, b, sizeof(b));
+ if (bn < 0)
+ return bn;
+
+ if (bn > 0) {
+ x++;
+
+ /* If there was a second label, try to get the third one */
+ q = p;
+ cn = dns_label_unescape(&p, c, sizeof(c));
+ if (cn < 0)
+ return cn;
+
+ if (cn > 0)
+ x++;
+ } else
+ cn = 0;
+ } else
+ an = 0;
+
+ if (x >= 2 && srv_type_label_is_valid(b, bn)) {
+
+ if (x >= 3 && srv_type_label_is_valid(c, cn)) {
+
+ if (dns_service_name_label_is_valid(a, an)) {
+
+ /* OK, got <name> . <type> . <type2> . <domain> */
+
+ name = strndup(a, an);
+ if (!name)
+ return -ENOMEM;
+
+ type = new(char, bn+1+cn+1);
+ if (!type)
+ return -ENOMEM;
+ strcpy(stpcpy(stpcpy(type, b), "."), c);
+
+ d = p;
+ goto finish;
+ }
+
+ } else if (srv_type_label_is_valid(a, an)) {
+
+ /* OK, got <type> . <type2> . <domain> */
+
+ name = NULL;
+
+ type = new(char, an+1+bn+1);
+ if (!type)
+ return -ENOMEM;
+ strcpy(stpcpy(stpcpy(type, a), "."), b);
+
+ d = q;
+ goto finish;
+ }
+ }
+
+ name = NULL;
+ type = NULL;
+ d = joined;
+
+finish:
+ r = dns_name_normalize(d, &domain);
+ if (r < 0)
+ return r;
+
+ if (_domain) {
+ *_domain = domain;
+ domain = NULL;
+ }
+
+ if (_type) {
+ *_type = type;
+ type = NULL;
+ }
+
+ if (_name) {
+ *_name = name;
+ name = NULL;
+ }
+
+ return 0;
+}
diff --git a/src/shared/dns-domain.h b/src/shared/dns-domain.h
index b214897440..a68df330e6 100644
--- a/src/shared/dns-domain.h
+++ b/src/shared/dns-domain.h
@@ -62,6 +62,8 @@ int dns_name_between(const char *a, const char *b, const char *c);
int dns_name_equal(const char *x, const char *y);
int dns_name_endswith(const char *name, const char *suffix);
+int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret);
+
int dns_name_reverse(int family, const union in_addr_union *a, char **ret);
int dns_name_address(const char *p, int *family, union in_addr_union *a);
@@ -69,3 +71,12 @@ int dns_name_root(const char *name);
int dns_name_single_label(const char *name);
int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len);
+
+int dns_srv_type_verify(const char *name);
+
+bool dns_service_name_is_valid(const char *name);
+
+int dns_service_join(const char *name, const char *type, const char *domain, char **ret);
+int dns_service_split(const char *joined, char **name, char **type, char **domain);
+
+int dns_name_replace_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret);
diff --git a/src/shared/efivars.h b/src/shared/efivars.h
index e953a12737..5cb4c3af4e 100644
--- a/src/shared/efivars.h
+++ b/src/shared/efivars.h
@@ -24,6 +24,7 @@
#include <stdbool.h>
#include "sd-id128.h"
+
#include "time-util.h"
#define EFI_VENDOR_LOADER SD_ID128_MAKE(4a,67,b0,82,0a,4c,41,cf,b6,c7,44,0b,29,bb,8c,4f)
diff --git a/src/shared/logs-show.h b/src/shared/logs-show.h
index 569e1faa55..98927bbc59 100644
--- a/src/shared/logs-show.h
+++ b/src/shared/logs-show.h
@@ -26,8 +26,8 @@
#include "sd-journal.h"
-#include "util.h"
#include "output-mode.h"
+#include "util.h"
int output_journal(
FILE *f,
diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h
index f041600fbf..038db7453c 100644
--- a/src/shared/machine-image.h
+++ b/src/shared/machine-image.h
@@ -21,9 +21,9 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "time-util.h"
-#include "lockfile-util.h"
#include "hashmap.h"
+#include "lockfile-util.h"
+#include "time-util.h"
typedef enum ImageType {
IMAGE_DIRECTORY,
diff --git a/src/shared/nss-util.h b/src/shared/nss-util.h
index 3657aa5d9c..a7b51a91da 100644
--- a/src/shared/nss-util.h
+++ b/src/shared/nss-util.h
@@ -21,11 +21,11 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <nss.h>
+#include <grp.h>
#include <netdb.h>
-#include <resolv.h>
+#include <nss.h>
#include <pwd.h>
-#include <grp.h>
+#include <resolv.h>
#define NSS_GETHOSTBYNAME_PROTOTYPES(module) \
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-03-08 12:59:10 +0000