diff options
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/uipc_mbuf.c | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c index db942bfd7d6..a0c0ebc9482 100644 --- a/sys/kern/uipc_mbuf.c +++ b/sys/kern/uipc_mbuf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uipc_mbuf.c,v 1.291 2024/08/29 10:44:40 bluhm Exp $ */ +/* $OpenBSD: uipc_mbuf.c,v 1.292 2024/09/05 08:52:27 bluhm Exp $ */ /* $NetBSD: uipc_mbuf.c,v 1.15.4.1 1996/06/13 17:11:44 cgd Exp $ */ /* @@ -1533,6 +1533,80 @@ m_print(void *v, } } + +const char *m_types[MT_NTYPES] = { + "fre", + "dat", + "hdr", + "nam", + "opt", + "ftb", + "ctl", + "oob", +}; + +void +m_print_chain(void *v, int deep, + int (*pr)(const char *, ...) __attribute__((__format__(__kprintf__,1,2)))) +{ + struct mbuf *m; + const char *indent = deep ? "++-" : "-+-"; + size_t chain = 0, len = 0, size = 0; + + for (m = v; m != NULL; m = m->m_next) { + const char *type; + + chain++; + len += m->m_len; + size += M_SIZE(m); + type = (m->m_type >= 0 && m->m_type < MT_NTYPES) ? + m_types[m->m_type] : "???"; + (*pr)("%s mbuf %p, %s, off %zd, len %u", indent, m, type, + m->m_data - M_DATABUF(m), m->m_len); + if (m->m_flags & M_PKTHDR) + (*pr)(", pktlen %d", m->m_pkthdr.len); + if (m->m_flags & M_EXT) + (*pr)(", clsize %u", m->m_ext.ext_size); + (*pr)("\n"); + indent = deep ? "|+-" : " +-"; + } + indent = deep ? "|\\-" : " \\-"; + if (v != NULL) { + (*pr)("%s total chain %zu, len %zu, size %zu\n", + indent, chain, len, size); + } +} + +void +m_print_packet(void *v, int deep, + int (*pr)(const char *, ...) __attribute__((__format__(__kprintf__,1,2)))) +{ + struct mbuf *m, *n; + const char *indent = "+--"; + size_t pkts = 0; + + for (m = v; m != NULL; m = m->m_nextpkt) { + size_t chain = 0, len = 0, size = 0; + + pkts++; + if (deep) { + m_print_chain(m, deep, pr); + continue; + } + for (n = m; n != NULL; n = n->m_next) { + chain++; + len += n->m_len; + size += M_SIZE(n); + } + (*pr)("%s mbuf %p, chain %zu", indent, m, chain); + if (m->m_flags & M_PKTHDR) + (*pr)(", pktlen %d", m->m_pkthdr.len); + (*pr)(", len %zu, size %zu\n", len, size); + } + indent = "\\--"; + if (v != NULL) + (*pr)("%s total packets %zu\n", indent, pkts); +} #endif /* |