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authorPatrik Flykt <patrik.flykt@linux.intel.com>2014-02-25 13:33:24 +0200
committerPatrik Flykt <patrik.flykt@linux.intel.com>2014-03-19 10:52:40 +0200
commita838c939a3a50b7318efac7b960392ca8d13bb1e (patch)
tree158094fc37eaed287b8bc379094e2f3d4ce009f7 /src/libsystemd-network/test-dhcp-client.c
parent4658568002357edfc7ea634ddafca925d185606b (diff)
libsystemd-network: Export checksum function to test case
Remove identical checksum function implementation from the test case code.
Diffstat (limited to 'src/libsystemd-network/test-dhcp-client.c')
-rw-r--r--src/libsystemd-network/test-dhcp-client.c30
1 files changed, 3 insertions, 27 deletions
diff --git a/src/libsystemd-network/test-dhcp-client.c b/src/libsystemd-network/test-dhcp-client.c
index 8061e5fa83..cfc75ae0a7 100644
--- a/src/libsystemd-network/test-dhcp-client.c
+++ b/src/libsystemd-network/test-dhcp-client.c
@@ -102,30 +102,6 @@ static void test_request_basic(sd_event *e)
assert_se(sd_dhcp_client_set_request_option(client, 33) == -EEXIST);
}
-static uint16_t client_checksum(void *buf, int len)
-{
- uint32_t sum;
- uint16_t *check;
- int i;
- uint8_t *odd;
-
- sum = 0;
- check = buf;
-
- for (i = 0; i < len / 2 ; i++)
- sum += check[i];
-
- if (len & 0x01) {
- odd = buf;
- sum += odd[len - 1];
- }
-
- while (sum >> 16)
- sum = (sum & 0xffff) + (sum >> 16);
-
- return ~sum;
-}
-
static void test_checksum(void)
{
uint8_t buf[20] = {
@@ -137,7 +113,7 @@ static void test_checksum(void)
if (verbose)
printf("* %s\n", __FUNCTION__);
- assert_se(client_checksum(&buf, 20) == be16toh(0x78ae));
+ assert_se(dhcp_packet_checksum(&buf, 20) == be16toh(0x78ae));
}
static int check_options(uint8_t code, uint8_t len, const uint8_t *option,
@@ -173,13 +149,13 @@ int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
discover->ip.ttl = 0;
discover->ip.check = discover->udp.len;
- udp_check = ~client_checksum(&discover->ip.ttl, len - 8);
+ udp_check = ~dhcp_packet_checksum(&discover->ip.ttl, len - 8);
assert_se(udp_check == 0xffff);
discover->ip.ttl = IPDEFTTL;
discover->ip.check = ip_check;
- ip_check = ~client_checksum(&discover->ip, sizeof(discover->ip));
+ ip_check = ~dhcp_packet_checksum(&discover->ip, sizeof(discover->ip));
assert_se(ip_check == 0xffff);
assert_se(discover->dhcp.xid);