diff options
| -rw-r--r-- | src/udev/smack-util.c | 47 | ||||
| -rw-r--r-- | src/udev/smack-util.h | 4 | ||||
| -rw-r--r-- | src/udev/udev-node.c | 19 |
3 files changed, 56 insertions, 14 deletions
diff --git a/src/udev/smack-util.c b/src/udev/smack-util.c index 93c0d4a347..2711041c7e 100644 --- a/src/udev/smack-util.c +++ b/src/udev/smack-util.c @@ -40,3 +40,50 @@ bool use_smack(void) { #endif } + +int smack_label_path(const char *path, const char *label) { +#ifdef HAVE_SMACK + if (!use_smack()) + return 0; + + if (label) + return setxattr(path, "security.SMACK64", label, strlen(label), 0); + else + return lremovexattr(path, "security.SMACK64"); +#else + return 0; +#endif +} + +int smack_label_fd(int fd, const char *label) { +#ifdef HAVE_SMACK + if (!use_smack()) + return 0; + + return fsetxattr(fd, "security.SMACK64", label, strlen(label), 0); +#else + return 0; +#endif +} + +int smack_label_ip_out_fd(int fd, const char *label) { +#ifdef HAVE_SMACK + if (!use_smack()) + return 0; + + return fsetxattr(fd, "security.SMACK64IPOUT", label, strlen(label), 0); +#else + return 0; +#endif +} + +int smack_label_ip_in_fd(int fd, const char *label) { +#ifdef HAVE_SMACK + if (!use_smack()) + return 0; + + return fsetxattr(fd, "security.SMACK64IPIN", label, strlen(label), 0); +#else + return 0; +#endif +} diff --git a/src/udev/smack-util.h b/src/udev/smack-util.h index d81e4aa403..88704894e7 100644 --- a/src/udev/smack-util.h +++ b/src/udev/smack-util.h @@ -22,3 +22,7 @@ #include <stdbool.h> bool use_smack(void); +int smack_label_path(const char *path, const char *label); +int smack_label_fd(int fd, const char *label); +int smack_label_ip_in_fd(int fd, const char *label); +int smack_label_ip_out_fd(int fd, const char *label); diff --git a/src/udev/udev-node.c b/src/udev/udev-node.c index 361068dd67..026cb8359a 100644 --- a/src/udev/udev-node.c +++ b/src/udev/udev-node.c @@ -28,12 +28,9 @@ #include <sys/time.h> #include <sys/stat.h> #include <sys/types.h> -#ifdef HAVE_XATTR -#include <attr/xattr.h> -#endif -#include "smack-util.h" #include "udev.h" +#include "smack-util.h" static int node_symlink(struct udev_device *dev, const char *node, const char *slink) { @@ -285,9 +282,7 @@ static int node_permissions_apply(struct udev_device *dev, bool apply, if (apply) { bool selinux = false; -#ifdef HAVE_SMACK bool smack = false; -#endif if ((stats.st_mode & 0777) != (mode & 0777) || stats.st_uid != uid || stats.st_gid != gid) { log_debug("set permissions %s, %#o, uid=%u, gid=%u\n", devnode, mode, uid, gid); @@ -312,14 +307,12 @@ static int node_permissions_apply(struct udev_device *dev, bool apply, else log_debug("SECLABEL: set SELinux label '%s'", label); -#ifdef HAVE_SMACK - } else if (streq(name, "smack") && use_smack()) { + } else if (streq(name, "smack")) { smack = true; - if (lsetxattr(devnode, "security.SMACK64", label, strlen(label), 0) < 0) + if (smack_label_path(devnode, label) < 0) log_error("SECLABEL: failed to set SMACK label '%s'", label); else log_debug("SECLABEL: set SMACK label '%s'", label); -#endif } else log_error("SECLABEL: unknown subsystem, ignoring '%s'='%s'", name, label); @@ -328,10 +321,8 @@ static int node_permissions_apply(struct udev_device *dev, bool apply, /* set the defaults */ if (!selinux) label_fix(devnode, true, false); -#ifdef HAVE_SMACK - if (!smack && use_smack()) - lremovexattr(devnode, "security.SMACK64"); -#endif + if (!smack) + smack_label_path(devnode, NULL); } /* always update timestamp when we re-use the node, like on media change events */ |