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crit: Print IP addresses in pretty mode

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There are two places where we store IP addresses (both IPv4 and IPv6).
Mark them with custom option and print them in compressed form for
--pretty output.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Ruslan Kuprieiev <kupruser@gmail.com>
This commit is contained in:
Pavel Emelyanov 2015-01-28 17:16:00 +03:00
parent 0d2aeb3581
commit 9ebb3738b2
3 changed files with 23 additions and 4 deletions
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1
protobuf/opts.proto
View File

@ -2,6 +2,7 @@ import "google/protobuf/descriptor.proto";
message CRIU_Opts {
optional bool hex = 1; // Idicate that CRIT should treat this field as hex.
optional bool ipadd = 2; // The field is IPv4/v6 address
}
extend google.protobuf.FieldOptions {

4
protobuf/sk-inet.proto
View File

@ -22,8 +22,8 @@ message inet_sk_entry {
required uint32 flags = 9 [(criu).hex = true];
required uint32 backlog = 10;
repeated uint32 src_addr = 11;
repeated uint32 dst_addr = 12;
repeated uint32 src_addr = 11 [(criu).ipadd = true];
repeated uint32 dst_addr = 12 [(criu).ipadd = true];
required fown_entry fown = 13;
required sk_opts_entry opts = 14;

22
pycriu/images/pb2dict.py
View File

@ -1,5 +1,7 @@
from google.protobuf.descriptor import FieldDescriptor as FD
import opts_pb2
import ipaddr
import socket
# pb2dict and dict2pb are methods to convert pb to/from dict.
# Inspired by:
@ -43,6 +45,9 @@ _basic_cast = {
def _marked_as_hex(field):
return field.GetOptions().Extensions[opts_pb2.criu].hex
def _marked_as_ip(field):
return field.GetOptions().Extensions[opts_pb2.criu].ipadd
def _pb2dict_cast(field, value, pretty = False, is_hex = False):
if not is_hex:
is_hex = _marked_as_hex(field)
@ -73,8 +78,21 @@ def pb2dict(pb, pretty = False, is_hex = False):
for field, value in pb.ListFields():
if field.label == FD.LABEL_REPEATED:
d_val = []
for v in value:
d_val.append(_pb2dict_cast(field, v, pretty, is_hex))
if pretty and _marked_as_ip(field):
if len(value) == 1:
v = socket.ntohl(value[0])
addr = ipaddr.IPv4Address(v)
else:
v = 0 + (socket.ntohl(value[0]) << (32 * 3)) + \
(socket.ntohl(value[1]) << (32 * 2)) + \
(socket.ntohl(value[2]) << (32 * 1)) + \
(socket.ntohl(value[3]))
addr = ipaddr.IPv6Address(v)
d_val.append(addr.compressed)
else:
for v in value:
d_val.append(_pb2dict_cast(field, v, pretty, is_hex))
else:
d_val = _pb2dict_cast(field, value, pretty, is_hex)