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msghdr: decode IP_RECVFRAGSIZE control message

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Added in v4.10-rc1~202^2~340^2~2.

* xlat/ip_cmsg_types.in (SCM_SECURITY): Provide fallback message,
reorder.
(IP_RECVFRAGSIZE): New constant.
* msghdr.c (print_cmsg_int): New function.
(cmsg_ip_printers) <IP_RECVFRAGSIZE>: New printer.
This commit is contained in:
Eugene Syromyatnikov 2018-09-19 23:00:30 +02:00
parent 156777f967
commit 8a7ba35d04
2 changed files with 12 additions and 1 deletions
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10
msghdr.c
View File

@ -132,6 +132,15 @@ print_cmsg_ip_pktinfo(struct tcb *tcp, const void *cmsg_data,
tprints("}");
}
static void
print_cmsg_int(struct tcb *tcp, const void *cmsg_data,
const unsigned int data_len)
{
const int *p = cmsg_data;
tprintf("[%d]", *p);
}
static void
print_cmsg_uint(struct tcb *tcp, const void *cmsg_data,
const unsigned int data_len)
@ -229,6 +238,7 @@ static const struct {
[IP_RECVERR] = { print_cmsg_ip_recverr, sizeof(struct sock_ee) },
[IP_ORIGDSTADDR] = { print_cmsg_ip_origdstaddr, sizeof(struct sockaddr_in) },
[IP_CHECKSUM] = { print_cmsg_uint, sizeof(unsigned int) },
[IP_RECVFRAGSIZE] = { print_cmsg_int, sizeof(int) },
[SCM_SECURITY] = { print_scm_security, 1 }
};

3
xlat/ip_cmsg_types.in
View File

@ -1,9 +1,10 @@
IP_TOS 1
IP_TTL 2
SCM_SECURITY 3
IP_RECVOPTS 6
IP_RETOPTS 7
IP_PKTINFO 8
IP_RECVERR 11
IP_ORIGDSTADDR 20
IP_CHECKSUM 23
SCM_SECURITY
IP_RECVFRAGSIZE 25