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authorLennart Poettering <lennart@poettering.net>2015-08-26 20:11:35 +0200
committerLennart Poettering <lennart@poettering.net>2015-08-26 20:45:29 +0200
commit2d03c0b803aa822dfb5f0473a1e37c19f7774860 (patch)
treef8accdda7f094bb07c72ca521194d6410e1b7946 /src/libsystemd-network
parente26b50585b29acfe1ca9346850490b8fbe84aece (diff)
dhcp: various simplifications
Diffstat (limited to 'src/libsystemd-network')
-rw-r--r--src/libsystemd-network/sd-dhcp-lease.c65
1 files changed, 15 insertions, 50 deletions
diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index c312c7cad0..f2e6cb0ddc 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -423,9 +423,8 @@ static int lease_parse_classless_routes(const uint8_t *option, size_t len, struc
return 0;
}
-int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
- void *user_data) {
- sd_dhcp_lease *lease = user_data;
+int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option, void *userdata) {
+ sd_dhcp_lease *lease = userdata;
int r;
assert(lease);
@@ -434,87 +433,60 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
case DHCP_OPTION_TIME_OFFSET:
lease_parse_s32(option, len, &lease->time_offset);
-
break;
case DHCP_OPTION_INTERFACE_MTU_AGING_TIMEOUT:
lease_parse_u32(option, len, &lease->mtu_aging_timeout, 0);
-
break;
case DHCP_OPTION_IP_ADDRESS_LEASE_TIME:
lease_parse_u32(option, len, &lease->lifetime, 1);
-
break;
case DHCP_OPTION_SERVER_IDENTIFIER:
lease_parse_be32(option, len, &lease->server_address);
-
break;
case DHCP_OPTION_SUBNET_MASK:
lease_parse_be32(option, len, &lease->subnet_mask);
-
break;
case DHCP_OPTION_BROADCAST:
lease_parse_be32(option, len, &lease->broadcast);
-
break;
case DHCP_OPTION_ROUTER:
- if(len >= 4)
+ if (len >= 4)
lease_parse_be32(option, 4, &lease->router);
break;
case DHCP_OPTION_DOMAIN_NAME_SERVER:
- r = lease_parse_in_addrs(option, len, &lease->dns, &lease->dns_size);
- if (r < 0)
- return r;
-
- break;
+ return lease_parse_in_addrs(option, len, &lease->dns, &lease->dns_size);
case DHCP_OPTION_NTP_SERVER:
- r = lease_parse_in_addrs(option, len, &lease->ntp, &lease->ntp_size);
- if (r < 0)
- return r;
-
- break;
+ return lease_parse_in_addrs(option, len, &lease->ntp, &lease->ntp_size);
case DHCP_OPTION_POLICY_FILTER:
- r = lease_parse_in_addrs_pairs(option, len, &lease->policy_filter, &lease->policy_filter_size);
- if (r < 0)
- return r;
-
- break;
+ return lease_parse_in_addrs_pairs(option, len, &lease->policy_filter, &lease->policy_filter_size);
case DHCP_OPTION_STATIC_ROUTE:
- r = lease_parse_routes(option, len, &lease->static_route, &lease->static_route_size,
- &lease->static_route_allocated);
- if (r < 0)
- return r;
-
- break;
+ return lease_parse_routes(option, len, &lease->static_route, &lease->static_route_size, &lease->static_route_allocated);
case DHCP_OPTION_INTERFACE_MTU:
lease_parse_u16(option, len, &lease->mtu, 68);
-
break;
case DHCP_OPTION_INTERFACE_MDR:
lease_parse_u16(option, len, &lease->mdr, 576);
-
break;
case DHCP_OPTION_INTERFACE_TTL:
lease_parse_u8(option, len, &lease->ttl, 1);
-
break;
case DHCP_OPTION_BOOT_FILE_SIZE:
lease_parse_u16(option, len, &lease->boot_file_size, 0);
-
break;
case DHCP_OPTION_DOMAIN_NAME:
@@ -573,40 +545,32 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
break;
}
- case DHCP_OPTION_ROOT_PATH:
- r = lease_parse_string(option, len, &lease->root_path);
- if (r < 0)
- return r;
- break;
+ case DHCP_OPTION_ROOT_PATH:
+ return lease_parse_string(option, len, &lease->root_path);
case DHCP_OPTION_RENEWAL_T1_TIME:
lease_parse_u32(option, len, &lease->t1, 1);
-
break;
case DHCP_OPTION_REBINDING_T2_TIME:
lease_parse_u32(option, len, &lease->t2, 1);
-
break;
case DHCP_OPTION_ENABLE_IP_FORWARDING:
lease_parse_bool(option, len, &lease->ip_forward);
-
break;
case DHCP_OPTION_ENABLE_IP_FORWARDING_NL:
lease_parse_bool(option, len, &lease->ip_forward_non_local);
-
break;
case DHCP_OPTION_CLASSLESS_STATIC_ROUTE:
- r = lease_parse_classless_routes(option, len, &lease->static_route, &lease->static_route_size,
- &lease->static_route_allocated);
- if (r < 0)
- return r;
-
- break;
+ return lease_parse_classless_routes(
+ option, len,
+ &lease->static_route,
+ &lease->static_route_size,
+ &lease->static_route_allocated);
case DHCP_OPTION_NEW_TZDB_TIMEZONE: {
_cleanup_free_ char *tz = NULL;
@@ -625,6 +589,7 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
}
case DHCP_OPTION_VENDOR_SPECIFIC:
+
if (len >= 1) {
free(lease->vendor_specific);
lease->vendor_specific = memdup(option, len);