[systemd-commits] 2 commits - src/libsystemd src/network src/systemd

Tom Gundersen tomegun at kemper.freedesktop.org
Fri Mar 7 09:16:24 PST 2014


 src/libsystemd/sd-rtnl/rtnl-message.c |   45 +++++++++++++++++++++++++++++++++
 src/libsystemd/sd-rtnl/test-rtnl.c    |   26 +++++++++++++++++++
 src/network/networkd-link.c           |   46 ++++++++++++----------------------
 src/systemd/sd-rtnl.h                 |    3 ++
 4 files changed, 91 insertions(+), 29 deletions(-)

New commits:
commit 9842de0d93dc895800a43ccf1d04e5174f0ffea8
Author: Tom Gundersen <teg at jklm.no>
Date:   Fri Mar 7 17:34:38 2014 +0100

    networkd: use new rtnl_message_read() API

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 416eb56..785e8d5 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1328,8 +1328,6 @@ int link_configure(Link *link) {
 
 int link_update(Link *link, sd_rtnl_message *m) {
         unsigned flags;
-        void *data;
-        uint16_t type;
         int r;
 
         assert(link);
@@ -1344,34 +1342,24 @@ int link_update(Link *link, sd_rtnl_message *m) {
                 return r;
         }
 
-        while (sd_rtnl_message_read(m, &type, &data) > 0) {
-                switch(type) {
-                case IFLA_MTU:
-                        if (link->network->dhcp && link->network->dhcp_mtu &&
-                            !link->original_mtu) {
-                                link->original_mtu = *(uint16_t *) data;
-                                log_debug_link(link, "saved original MTU: %"
-                                               PRIu16, link->original_mtu);
-                        }
-
-                        break;
-                case IFLA_ADDRESS:
-                        if (memcmp(&link->mac.ether_addr_octet, &data,
-                                   ETH_ALEN)) {
-                                memcpy(&link->mac, data, ETH_ALEN);
-
-                                log_debug_link(link, "updated MAC address: "
-                                               "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
-                                               link->mac.ether_addr_octet[0],
-                                               link->mac.ether_addr_octet[1],
-                                               link->mac.ether_addr_octet[2],
-                                               link->mac.ether_addr_octet[3],
-                                               link->mac.ether_addr_octet[4],
-                                               link->mac.ether_addr_octet[5]);
-                        }
+        if (link->network->dhcp && link->network->dhcp_mtu &&
+            !link->original_mtu) {
+                r = sd_rtnl_message_read_u16(m, IFLA_MTU, &link->original_mtu);
+                if (r >= 0)
+                        log_debug_link(link, "saved original MTU: %"
+                                       PRIu16, link->original_mtu);
+        }
 
-                        break;
-                }
+        r = sd_rtnl_message_read_ether_addr(m, IFLA_ADDRESS, &link->mac);
+        if (r >= 0) {
+                log_debug_link(link, "MAC address: "
+                               "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+                                link->mac.ether_addr_octet[0],
+                                link->mac.ether_addr_octet[1],
+                                link->mac.ether_addr_octet[2],
+                                link->mac.ether_addr_octet[3],
+                                link->mac.ether_addr_octet[4],
+                                link->mac.ether_addr_octet[5]);
         }
 
         return link_update_flags(link, flags);

commit 4e9e7f1836b0c8f612f2beb3447d6144f9244d26
Author: Susant Sahani <susant at redhat.com>
Date:   Fri Mar 7 20:38:02 2014 +0530

    sd-rtnl: introduce read ether and ip address functions
    
    This patch introduces reading ethernet address and IPV4/IPv6
    as well which is based on table based look up.
    
    [tomegun: rename read_ether() to read_ether_addr() to match the append function.]

diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index dd3a8fb..fca1ff6 100644
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -876,6 +876,51 @@ int sd_rtnl_message_read_u32(sd_rtnl_message *m, unsigned short type, uint32_t *
         return 0;
 }
 
+int sd_rtnl_message_read_ether_addr(sd_rtnl_message *m, unsigned short type, struct ether_addr *data) {
+        int r;
+        void *attr_data;
+
+        assert_return(data, -EINVAL);
+
+        r = rtnl_message_read_internal(m, type, &attr_data);
+        if(r < 0)
+                return r;
+
+        memcpy(data, attr_data, sizeof(struct ether_addr));
+
+        return 0;
+}
+
+int sd_rtnl_message_read_in_addr(sd_rtnl_message *m, unsigned short type, struct in_addr *data) {
+        int r;
+        void *attr_data;
+
+        assert_return(data, -EINVAL);
+
+        r = rtnl_message_read_internal(m, type, &attr_data);
+        if(r < 0)
+                return r;
+
+        memcpy(data, attr_data, sizeof(struct in_addr));
+
+        return 0;
+}
+
+int sd_rtnl_message_read_in6_addr(sd_rtnl_message *m, unsigned short type, struct in6_addr *data) {
+        int r;
+        void *attr_data;
+
+        assert_return(data, -EINVAL);
+
+        r = rtnl_message_read_internal(m, type, &attr_data);
+        if(r < 0)
+                return r;
+
+        memcpy(data, attr_data, sizeof(struct in6_addr));
+
+        return 0;
+}
+
 int sd_rtnl_message_exit_container(sd_rtnl_message *m) {
         assert_return(m, -EINVAL);
         assert_return(m->sealed, -EINVAL);
diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
index dc21042..6ecd660 100644
--- a/src/libsystemd/sd-rtnl/test-rtnl.c
+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
@@ -68,6 +68,7 @@ static void test_link_get(sd_rtnl *rtnl, int ifindex) {
         uint16_t type;
         uint8_t u8_data;
         uint32_t u32_data;
+        struct ether_addr eth_data;
 
         assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
         assert_se(m);
@@ -139,9 +140,33 @@ static void test_link_get(sd_rtnl *rtnl, int ifindex) {
         assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_TX_QUEUES, &u32_data) == 0);
         assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_RX_QUEUES, &u32_data) == 0);
 
+        assert_se(sd_rtnl_message_read_ether_addr(r, IFLA_ADDRESS, &eth_data) == 0);
+
+        assert_se(sd_rtnl_flush(rtnl) >= 0);
+        assert_se((m = sd_rtnl_message_unref(m)) == NULL);
+        assert_se((r = sd_rtnl_message_unref(r)) == NULL);
+}
+
+
+static void test_address_get(sd_rtnl *rtnl, int ifindex) {
+        sd_rtnl_message *m;
+        sd_rtnl_message *r;
+        struct in_addr in_data;
+
+        assert_se(sd_rtnl_message_new_addr(rtnl, &m, RTM_GETADDR, ifindex, AF_INET) >= 0);
+        assert_se(m);
+
+        assert_se(sd_rtnl_call(rtnl, m, -1, &r) == 1);
+
+        assert_se(sd_rtnl_message_read_in_addr(r, IFA_LOCAL, &in_data) == 0);
+        assert_se(sd_rtnl_message_read_in_addr(r, IFA_ADDRESS, &in_data) == 0);
+        assert_se(sd_rtnl_message_read_in_addr(r, IFA_LABEL, &in_data) == 0);
+        assert_se(sd_rtnl_message_read_in_addr(r, IFA_CACHEINFO, &in_data) == 0);
+
         assert_se(sd_rtnl_flush(rtnl) >= 0);
         assert_se((m = sd_rtnl_message_unref(m)) == NULL);
         assert_se((r = sd_rtnl_message_unref(r)) == NULL);
+
 }
 
 static void test_route(void) {
@@ -441,6 +466,7 @@ int main(void) {
         assert_se((r = sd_rtnl_message_unref(r)) == NULL);
 
         test_link_get(rtnl, if_loopback);
+        test_address_get(rtnl, if_loopback);
 
         assert_se(sd_rtnl_flush(rtnl) >= 0);
         assert_se((m = sd_rtnl_message_unref(m)) == NULL);
diff --git a/src/systemd/sd-rtnl.h b/src/systemd/sd-rtnl.h
index 886a66e..a171978 100644
--- a/src/systemd/sd-rtnl.h
+++ b/src/systemd/sd-rtnl.h
@@ -107,6 +107,9 @@ int sd_rtnl_message_read_string(sd_rtnl_message *m, unsigned short type, char **
 int sd_rtnl_message_read_u8(sd_rtnl_message *m, unsigned short type, uint8_t *data);
 int sd_rtnl_message_read_u16(sd_rtnl_message *m, unsigned short type, uint16_t *data);
 int sd_rtnl_message_read_u32(sd_rtnl_message *m, unsigned short type, uint32_t *data);
+int sd_rtnl_message_read_ether_addr(sd_rtnl_message *m, unsigned short type, struct ether_addr *data);
+int sd_rtnl_message_read_in_addr(sd_rtnl_message *m, unsigned short type, struct in_addr *data);
+int sd_rtnl_message_read_in6_addr(sd_rtnl_message *m, unsigned short type, struct in6_addr *data);
 int sd_rtnl_message_exit_container(sd_rtnl_message *m);
 
 int sd_rtnl_message_rewind(sd_rtnl_message *m);



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