[systemd-commits] 4 commits - Makefile.am rules/80-net-setup-link.rules rules/85-net-configure-link.rules src/libsystemd-rtnl src/libudev src/machine src/udev

Tom Gundersen tomegun at kemper.freedesktop.org
Wed Oct 30 15:32:51 CET 2013


 Makefile.am                            |    2 
 rules/80-net-setup-link.rules          |   13 ++++
 rules/85-net-configure-link.rules      |   11 ---
 src/libsystemd-rtnl/rtnl-util.c        |   36 +++++++++---
 src/libsystemd-rtnl/rtnl-util.h        |    3 -
 src/libudev/libudev.c                  |    2 
 src/machine/machinectl.c               |    1 
 src/udev/net/link-config.c             |   94 ++++++++++++++++++---------------
 src/udev/net/link-config.h             |    2 
 src/udev/udev-builtin-net_setup_link.c |    6 +-
 src/udev/udev-event.c                  |    4 -
 11 files changed, 106 insertions(+), 68 deletions(-)

New commits:
commit 2004d23a0fcaa6e74631057a2ff75594a038d86e
Author: Tom Gundersen <teg at jklm.no>
Date:   Wed Oct 30 15:09:01 2013 +0100

    libudev: default log_priority to INFO
    
    This brings it in sync with the default config file.

diff --git a/src/libudev/libudev.c b/src/libudev/libudev.c
index 208039a..bc73a5a 100644
--- a/src/libudev/libudev.c
+++ b/src/libudev/libudev.c
@@ -125,7 +125,7 @@ _public_ struct udev *udev_new(void)
                 return NULL;
         udev->refcount = 1;
         udev->log_fn = log_stderr;
-        udev->log_priority = LOG_ERR;
+        udev->log_priority = LOG_INFO;
         udev_list_init(udev, &udev->properties_list, true);
 
         f = fopen("/etc/udev/udev.conf", "re");

commit f61942250a43a123580d7bbe5d7873dc5118ed97
Author: Tom Gundersen <teg at jklm.no>
Date:   Wed Oct 30 14:40:10 2013 +0100

    udev: link-config - less verbose logging
    
    Also reinstate print to kmsg when renaming netif.

diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index 80f8b16..b268254 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -44,6 +44,8 @@ struct link_config_ctx {
 
         int ethtool_fd;
 
+        bool enable_name_policy;
+
         sd_rtnl *rtnl;
 
         char **link_dirs;
@@ -67,6 +69,8 @@ int link_config_ctx_new(link_config_ctx **ret) {
 
         ctx->ethtool_fd = -1;
 
+        ctx->enable_name_policy = true;
+
         ctx->link_dirs = strv_new("/etc/systemd/network",
                                   "/run/systemd/network",
                                   "/usr/lib/systemd/network",
@@ -181,12 +185,37 @@ failure:
         return r;
 }
 
+static bool enable_name_policy(void) {
+        _cleanup_free_ char *line;
+        char *w, *state;
+        int r;
+        size_t l;
+
+        r = read_one_line_file("/proc/cmdline", &line);
+        if (r < 0) {
+                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
+                return true; /* something is very wrong, let's not make it worse */
+        }
+
+        FOREACH_WORD_QUOTED(w, l, line, state)
+                if (strneq(w, "net.ifnames=0", l))
+                        return false;
+
+        return true;
+}
+
 int link_config_load(link_config_ctx *ctx) {
         int r;
         char **files, **f;
 
         link_configs_free(ctx);
 
+
+        if (!enable_name_policy()) {
+                ctx->enable_name_policy = false;
+                log_info("Network interface NamePolicy= disabled on kernel commandline, ignoring.");
+        }
+
         /* update timestamp */
         paths_check_timestamp(ctx->link_dirs, &ctx->link_dirs_ts_usec, true);
 
@@ -255,10 +284,8 @@ int link_config_get(link_config_ctx *ctx, struct udev_device *device, link_confi
         link_config *link;
 
         LIST_FOREACH(links, link, ctx->links) {
-                if (!match_config(link, device)) {
-                        log_info("Config file %s does not apply to device %s", link->filename, udev_device_get_sysname(device));
-                } else {
-                        log_info("Config file %s applies to device %s", link->filename, udev_device_get_sysname(device));
+                if (match_config(link, device)) {
+                        log_debug("Config file %s applies to device %s", link->filename, udev_device_get_sysname(device));
                         *ret = link;
                         return 0;
                 }
@@ -267,27 +294,6 @@ int link_config_get(link_config_ctx *ctx, struct udev_device *device, link_confi
         return -ENOENT;
 }
 
-static bool enable_name_policy(void) {
-        _cleanup_free_ char *line;
-        char *w, *state;
-        int r;
-        size_t l;
-
-        r = read_one_line_file("/proc/cmdline", &line);
-        if (r < 0) {
-                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
-                return true; /* something is very wrong, let's not make it worse */
-        }
-
-        FOREACH_WORD_QUOTED(w, l, line, state)
-                if (strneq(w, "net.ifnames=0", l)) {
-                        log_info("Link name policy disabled on kernel commandline, ignoring.");
-                        return false;
-                }
-
-        return true;
-}
-
 static bool mac_is_random(struct udev_device *device) {
         const char *s;
         unsigned type;
@@ -387,8 +393,6 @@ int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_dev
         if (!old_name)
                 return -EINVAL;
 
-        log_info("Configuring %s", old_name);
-
         if (config->description) {
                 r = udev_device_set_sysattr_value(device, "ifalias",
                                                   config->description);
@@ -413,7 +417,7 @@ int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_dev
                 return -ENODEV;
         }
 
-        if (config->name_policy && enable_name_policy()) {
+        if (ctx->enable_name_policy && config->name_policy) {
                 NamePolicy *policy;
 
                 for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 1242db9..0d1049c 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -769,7 +769,7 @@ static int rename_netif(struct udev_event *event)
                 log_error("error changing net interface name %s to %s: %s",
                           oldname, name, strerror(-r));
         else
-                log_info("renamed network interface %s to %s", oldname, name);
+                print_kmsg("renamed network interface %s to %s", oldname, name);
 
         return r;
 }

commit 3e137a1b9a0eac2bf43d493d3302c3c959b6ccdb
Author: Tom Gundersen <teg at jklm.no>
Date:   Wed Oct 30 04:10:19 2013 +0100

    udev: link-config - let udevd set the ifname

diff --git a/Makefile.am b/Makefile.am
index 66bbf20..bd7f577 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2234,7 +2234,7 @@ dist_udevrules_DATA += \
 	rules/75-net-description.rules \
 	rules/75-tty-description.rules \
 	rules/78-sound-card.rules \
-	rules/85-net-configure-link.rules \
+	rules/80-net-setup-link.rules \
 	rules/95-udev-late.rules
 
 dist_udevhwdb_DATA = \
diff --git a/rules/80-net-setup-link.rules b/rules/80-net-setup-link.rules
new file mode 100644
index 0000000..6e411a9
--- /dev/null
+++ b/rules/80-net-setup-link.rules
@@ -0,0 +1,13 @@
+# do not edit this file, it will be overwritten on update
+
+SUBSYSTEM!="net", GOTO="net_setup_link_end"
+
+IMPORT{builtin}="path_id"
+
+ACTION!="add", GOTO="net_setup_link_end"
+
+IMPORT{builtin}="net_setup_link"
+
+NAME=="", ENV{ID_NET_NAME}!="", NAME="$env{ID_NET_NAME}"
+
+LABEL="net_setup_link_end"
diff --git a/rules/85-net-configure-link.rules b/rules/85-net-configure-link.rules
deleted file mode 100644
index d0ecb93..0000000
--- a/rules/85-net-configure-link.rules
+++ /dev/null
@@ -1,11 +0,0 @@
-# do not edit this file, it will be overwritten on update
-
-SUBSYSTEM!="net", GOTO="net_setup_link_end"
-
-IMPORT{builtin}="path_id"
-
-ACTION!="add", GOTO="net_setup_link_end"
-
-RUN{builtin}="net_setup_link"
-
-LABEL="net_setup_link_end"
diff --git a/src/libsystemd-rtnl/rtnl-util.c b/src/libsystemd-rtnl/rtnl-util.c
index bf6bf27..93804bb 100644
--- a/src/libsystemd-rtnl/rtnl-util.c
+++ b/src/libsystemd-rtnl/rtnl-util.c
@@ -25,25 +25,43 @@
 
 #include "rtnl-util.h"
 
-int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const char *name, const struct ether_addr *mac, unsigned mtu) {
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message;
-        bool need_update = false;
+int rtnl_set_link_name(sd_rtnl *rtnl, int ifindex, const char *name) {
+        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
         int r;
 
         assert(rtnl);
         assert(ifindex > 0);
+        assert(name);
 
         r = sd_rtnl_message_link_new(RTM_NEWLINK, ifindex, 0, 0, &message);
         if (r < 0)
                 return r;
 
-        if (name) {
-                r = sd_rtnl_message_append(message, IFLA_IFNAME, name);
-                if (r < 0)
-                        return r;
+        r = sd_rtnl_message_append(message, IFLA_IFNAME, name);
+        if (r < 0)
+                return r;
 
-                need_update = true;
-        }
+        r = sd_rtnl_send_with_reply_and_block(rtnl, message, 0, NULL);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const struct ether_addr *mac, unsigned mtu) {
+        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
+        bool need_update = false;
+        int r;
+
+        assert(rtnl);
+        assert(ifindex > 0);
+
+        if (!mac && mtu == 0)
+                return 0;
+
+        r = sd_rtnl_message_link_new(RTM_NEWLINK, ifindex, 0, 0, &message);
+        if (r < 0)
+                return r;
 
         if (mac) {
                 r = sd_rtnl_message_append(message, IFLA_ADDRESS, mac);
diff --git a/src/libsystemd-rtnl/rtnl-util.h b/src/libsystemd-rtnl/rtnl-util.h
index dd8300b..a6ac4b6 100644
--- a/src/libsystemd-rtnl/rtnl-util.h
+++ b/src/libsystemd-rtnl/rtnl-util.h
@@ -23,4 +23,5 @@
 
 #include "sd-rtnl.h"
 
-int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const char *name, const struct ether_addr *mac, unsigned mtu);
+int rtnl_set_link_name(sd_rtnl *rtnl, int ifindex, const char *name);
+int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const struct ether_addr *mac, unsigned mtu);
diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index cf966bf..80f8b16 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -280,8 +280,10 @@ static bool enable_name_policy(void) {
         }
 
         FOREACH_WORD_QUOTED(w, l, line, state)
-                if (strneq(w, "net.ifnames=0", l))
+                if (strneq(w, "net.ifnames=0", l)) {
+                        log_info("Link name policy disabled on kernel commandline, ignoring.");
                         return false;
+                }
 
         return true;
 }
@@ -365,40 +367,45 @@ static int get_mac(struct udev_device *device, bool want_random, struct ether_ad
         return 0;
 }
 
-int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device) {
-        const char *name;
+int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device, const char **name) {
+        const char *old_name;
         const char *new_name = NULL;
         struct ether_addr generated_mac;
         struct ether_addr *mac = NULL;
         int r, ifindex;
 
+        assert(ctx);
+        assert(config);
+        assert(device);
+        assert(name);
+
         r = link_config_ctx_connect(ctx);
         if (r < 0)
                 return r;
 
-        name = udev_device_get_sysname(device);
-        if (!name)
+        old_name = udev_device_get_sysname(device);
+        if (!old_name)
                 return -EINVAL;
 
-        log_info("Configuring %s", name);
+        log_info("Configuring %s", old_name);
 
         if (config->description) {
                 r = udev_device_set_sysattr_value(device, "ifalias",
                                                   config->description);
                 if (r < 0)
                         log_warning("Could not set description of %s to '%s': %s",
-                                    name, config->description, strerror(-r));
+                                    old_name, config->description, strerror(-r));
         }
 
-        r = ethtool_set_speed(ctx->ethtool_fd, name, config->speed, config->duplex);
+        r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed, config->duplex);
         if (r < 0)
                 log_warning("Could not set speed or duplex of %s to %u Mbytes (%s): %s",
-                             name, config->speed, duplex_to_string(config->duplex), strerror(-r));
+                             old_name, config->speed, duplex_to_string(config->duplex), strerror(-r));
 
-        r = ethtool_set_wol(ctx->ethtool_fd, name, config->wol);
+        r = ethtool_set_wol(ctx->ethtool_fd, old_name, config->wol);
         if (r < 0)
                 log_warning("Could not set WakeOnLan of %s to %s: %s",
-                            name, wol_to_string(config->wol), strerror(-r));
+                            old_name, wol_to_string(config->wol), strerror(-r));
 
         ifindex = udev_device_get_ifindex(device);
         if (ifindex <= 0) {
@@ -429,9 +436,12 @@ int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_dev
                 }
         }
 
-        if (!new_name && config->name) {
-                new_name = config->name;
-        }
+        if (new_name)
+                *name = new_name; /* a name was set by a policy */
+        else if (config->name)
+                *name = config->name; /* a name was set manually in the config */
+        else
+                *name = NULL;
 
         switch (config->mac_policy) {
                 case MACPOLICY_PERSISTENT:
@@ -454,9 +464,9 @@ int link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_dev
                         mac = config->mac;
         }
 
-        r = rtnl_set_link_properties(ctx->rtnl, ifindex, new_name, mac, config->mtu);
+        r = rtnl_set_link_properties(ctx->rtnl, ifindex, mac, config->mtu);
         if (r < 0) {
-                log_warning("Could not set Name, MACAddress or MTU on %s: %s", name, strerror(-r));
+                log_warning("Could not set MACAddress or MTU on %s: %s", old_name, strerror(-r));
                 return r;
         }
 
diff --git a/src/udev/net/link-config.h b/src/udev/net/link-config.h
index f5dee5a..b3ee81f 100644
--- a/src/udev/net/link-config.h
+++ b/src/udev/net/link-config.h
@@ -74,7 +74,7 @@ int link_config_load(link_config_ctx *ctx);
 bool link_config_should_reload(link_config_ctx *ctx);
 
 int link_config_get(link_config_ctx *ctx, struct udev_device *device, struct link_config **ret);
-int link_config_apply(link_config_ctx *ctx, struct link_config *config, struct udev_device *device);
+int link_config_apply(link_config_ctx *ctx, struct link_config *config, struct udev_device *device, const char **name);
 
 const char *name_policy_to_string(NamePolicy p) _const_;
 NamePolicy name_policy_from_string(const char *p) _pure_;
diff --git a/src/udev/udev-builtin-net_setup_link.c b/src/udev/udev-builtin-net_setup_link.c
index 6a98b80..e6ffa53 100644
--- a/src/udev/udev-builtin-net_setup_link.c
+++ b/src/udev/udev-builtin-net_setup_link.c
@@ -26,6 +26,7 @@
 link_config_ctx *ctx;
 
 static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv, bool test) {
+        const char *name;
         link_config *link;
         int r;
 
@@ -45,12 +46,15 @@ static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv
                 }
         }
 
-        r = link_config_apply(ctx, link, dev);
+        r = link_config_apply(ctx, link, dev, &name);
         if (r < 0) {
                 log_error("Could not apply link config to %s", udev_device_get_sysname(dev));
                 return EXIT_FAILURE;
         }
 
+        if (name)
+                udev_builtin_add_property(dev, test, "ID_NET_NAME", name);
+
         return EXIT_SUCCESS;
 }
 
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index bdf3a38..1242db9 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -764,7 +764,7 @@ static int rename_netif(struct udev_event *event)
         if (r < 0)
                 return r;
 
-        r = rtnl_set_link_properties(rtnl, udev_device_get_ifindex(dev), name, NULL, 0);
+        r = rtnl_set_link_name(rtnl, udev_device_get_ifindex(dev), name);
         if (r < 0)
                 log_error("error changing net interface name %s to %s: %s",
                           oldname, name, strerror(-r));

commit 415e7f65dbc66089f0d1b9de6785026596df88e7
Author: Marc-Antoine Perennou <Marc-Antoine at Perennou.com>
Date:   Wed Oct 30 12:33:11 2013 +0900

    machinectl: privileged option is gone

diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 7500d5c..8795565 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -572,7 +572,6 @@ static int parse_argv(int argc, char *argv[]) {
                 { "kill-who",        required_argument, NULL, ARG_KILL_WHO        },
                 { "signal",          required_argument, NULL, 's'                 },
                 { "host",            required_argument, NULL, 'H'                 },
-                { "privileged",      no_argument,       NULL, 'P'                 },
                 { "no-ask-password", no_argument,       NULL, ARG_NO_ASK_PASSWORD },
                 { NULL,              0,                 NULL, 0                   }
         };



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