diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-10-27 12:53:52 -0400 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-11-02 08:10:05 -0400 |
| commit | 03161b73808b856574839a95e528fc0e68baaa7d (patch) | |
| tree | 11ec04eb6004fdd06935fc2faebb8dca9844589c /eigrpd/eigrp_packet.c | |
| parent | 453a5340a8dc1400f44d1843b8687ac750282b12 (diff) | |
eigrpd: Create consts for TLV size
1) Create #defines for TLV SIZE and use them
2) Speed up prefix length by using a switch statement
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'eigrpd/eigrp_packet.c')
| -rw-r--r-- | eigrpd/eigrp_packet.c | 68 |
1 files changed, 50 insertions, 18 deletions
diff --git a/eigrpd/eigrp_packet.c b/eigrpd/eigrp_packet.c index 5b54f81326..ecabee4aa7 100644 --- a/eigrpd/eigrp_packet.c +++ b/eigrpd/eigrp_packet.c @@ -1165,25 +1165,57 @@ u_int16_t eigrp_add_internalTLV_to_stream(struct stream *s, u_int16_t length; stream_putw(s, EIGRP_TLV_IPv4_INT); - if (pe->destination->prefixlen <= 8) { - stream_putw(s, 0x001A); - length = 0x001A; - } - if ((pe->destination->prefixlen > 8) - && (pe->destination->prefixlen <= 16)) { - stream_putw(s, 0x001B); - length = 0x001B; - } - if ((pe->destination->prefixlen > 16) - && (pe->destination->prefixlen <= 24)) { - stream_putw(s, 0x001C); - length = 0x001C; - } - if (pe->destination->prefixlen > 24) { - stream_putw(s, 0x001D); - length = 0x001D; + switch (pe->destination->prefixlen) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: + case 7: + case 8: + length = EIGRP_TLV_IPV4_SIZE_GRT_0_BIT; + stream_putw(s, length); + break; + case 9: + case 10: + case 11: + case 12: + case 13: + case 14: + case 15: + case 16: + length = EIGRP_TLV_IPV4_SIZE_GRT_8_BIT; + stream_putw(s, length); + break; + case 17: + case 18: + case 19: + case 20: + case 21: + case 22: + case 23: + case 24: + length = EIGRP_TLV_IPV4_SIZE_GRT_16_BIT; + stream_putw(s, length); + break; + case 25: + case 26: + case 27: + case 28: + case 29: + case 30: + case 31: + case 32: + length = EIGRP_TLV_IPV4_SIZE_GRT_24_BIT; + stream_putw(s, length); + break; + default: + zlog_err("%s: Unexpected prefix length: %d", + __PRETTY_FUNCTION__, pe->destination->prefixlen); + return 0; } - stream_putl(s, 0x00000000); /*Metric*/ |