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UDP: let udp_pcblist() support UDP and UDP-Lite

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Provide the IPPROTO_UDP in the arg2 parameter of udp_pcblist() and use
this to determine the inpcbinfo. This allows the same function to be
used in an upcoming commit to provide the list of pcbs for UDP-Lite
just by providing IPPROTO_UDPLITE in the arg2 parameter.

Reviewed by:		rrs
MFC after:		3 days
Differential Revision:	https://reviews.freebsd.org/D53218
This commit is contained in:
Michael Tuexen
2025-10-20 23:21:47 +02:00
parent 7294d2601f
commit be3c59ff50
1 changed files with 8 additions and 7 deletions
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sys/netinet/udp_usrreq.c
+8 -7
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@@ -787,7 +787,8 @@ udplite_ctlinput(struct icmp *icmp)
static int
udp_pcblist(SYSCTL_HANDLER_ARGS)
{
struct inpcb_iterator inpi = INP_ALL_ITERATOR(&V_udbinfo,
struct inpcbinfo *pcbinfo = udp_get_inpcbinfo(arg2);
struct inpcb_iterator inpi = INP_ALL_ITERATOR(pcbinfo,
INPLOOKUP_RLOCKPCB);
struct xinpgen xig;
struct inpcb *inp;
@@ -799,7 +800,7 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
if (req->oldptr == 0) {
int n;
n = V_udbinfo.ipi_count;
n = pcbinfo->ipi_count;
n += imax(n / 8, 10);
req->oldidx = 2 * (sizeof xig) + n * sizeof(struct xinpcb);
return (0);
@@ -810,8 +811,8 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
bzero(&xig, sizeof(xig));
xig.xig_len = sizeof xig;
xig.xig_count = V_udbinfo.ipi_count;
xig.xig_gen = V_udbinfo.ipi_gencnt;
xig.xig_count = pcbinfo->ipi_count;
xig.xig_gen = pcbinfo->ipi_gencnt;
xig.xig_sogen = so_gencnt;
error = SYSCTL_OUT(req, &xig, sizeof xig);
if (error)
@@ -838,9 +839,9 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
* that something happened while we were processing this
* request, and it might be necessary to retry.
*/
xig.xig_gen = V_udbinfo.ipi_gencnt;
xig.xig_gen = pcbinfo->ipi_gencnt;
xig.xig_sogen = so_gencnt;
xig.xig_count = V_udbinfo.ipi_count;
xig.xig_count = pcbinfo->ipi_count;
error = SYSCTL_OUT(req, &xig, sizeof xig);
}
@@ -848,7 +849,7 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
}
SYSCTL_PROC(_net_inet_udp, UDPCTL_PCBLIST, pcblist,
CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0,
CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, IPPROTO_UDP,
udp_pcblist, "S,xinpcb",
"List of active UDP sockets");