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pyghmi
Code Issues Proposed changes

Have BMC side reply to get cipher suites 

Newest ipmitool expects a reply to get cipher suites.  For
now give a static reply that only cipher suite 3 is supported.

Change-Id: I31f77818ffa746954eb86fa95269b1e5a7e09879
This commit is contained in:
Jarrod Johnson 2020-03-18 11:21:00 -04:00
parent dd10bb7579
commit ec4b503edb
1 changed files with 27 additions and 0 deletions
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27
pyghmi/ipmi/private/serversession.py
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@ -298,6 +298,27 @@ class IpmiServer(object):
pkt = self.pktqueue.popleft()
self.sessionless_data(pkt[0], pkt[1])
def send_cipher_suites(self, myaddr, mylun, clientaddr, clientlun,
clientseq, data, sockaddr):
# the last two bytes is length of message, fixed at 14 for now
# the rest is boilerplate ipmi, follow along in ipmi spec
# 'example ipmi over lan' if desired
header = bytearray(
b'\x06\x00\xff\x07\x06\x00\x00\x00\x00'
b'\x00\x00\x00\x00\x00\x0e\x00')
# now the generic inner ipmi packet, per figure-13-4,
# ipmi lan message formats
ipmihdr = bytearray([clientaddr, clientlun | (7 << 2)])
hdrsum = ipmisession._checksum(*ipmihdr)
ipmihdr.append(hdrsum)
rq = bytearray([myaddr, mylun | clientseq << 2, 0x54])
# for now, hard code a cipher suite 3 only response
rq.extend(bytearray(b'\x00\x01\xc0\x03\x01\x41\x81'))
hdrsum = ipmisession._checksum(*rq)
rq.append(hdrsum)
pkt = header + ipmihdr + rq
ipmisession._io_sendto(self.serversocket, pkt, sockaddr)
def sessionless_data(self, data, sockaddr):
"""Examines unsolocited packet and decides appropriate action.
@ -343,6 +364,12 @@ class IpmiServer(object):
level &= 0b1111
self.send_auth_cap(myaddr, mylun, clientaddr, clientlun,
clientseq, sockaddr)
elif data[19] == 0x54:
clientaddr, clientlun = data[17:19]
clientseq = clientlun >> 2
clientlun &= 0b11
self.send_cipher_suites(myaddr, mylun, clientaddr, clientlun,
clientseq, data, sockaddr)
def set_kg(self, kg):
"""Sets the Kg for the BMC to use