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libnl
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Improved debugging messages while constructing messages/attributes

This commit is contained in:
Thomas Graf 2010-10-29 18:34:27 +02:00
parent f703192a4f
commit cc22992d0c
2 changed files with 19 additions and 7 deletions
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22
lib/attr.c
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@ -813,10 +813,11 @@ struct nlattr *nla_reserve(struct nl_msg *msg, int attrtype, int attrlen)
memset((unsigned char *) nla + nla->nla_len, 0, nla_padlen(attrlen));
msg->nm_nlh->nlmsg_len = tlen;
NL_DBG(2, "msg %p: Reserved %d bytes at offset +%td for attr %d "
"nlmsg_len=%d\n", msg, attrlen,
NL_DBG(2, "msg %p: attr <%p> %d: Reserved %d (%d) bytes at offset +%td "
"nlmsg_len=%d\n", msg, nla, nla->nla_type,
nla_total_size(attrlen), attrlen,
(void *) nla - nlmsg_data(msg->nm_nlh),
attrtype, msg->nm_nlh->nlmsg_len);
msg->nm_nlh->nlmsg_len);
return nla;
}
@ -845,8 +846,9 @@ int nla_put(struct nl_msg *msg, int attrtype, int datalen, const void *data)
if (datalen > 0) {
memcpy(nla_data(nla), data, datalen);
NL_DBG(2, "msg %p: Wrote %d bytes at offset +%td for attr %d\n",
msg, datalen, (void *) nla - nlmsg_data(msg->nm_nlh), attrtype);
NL_DBG(2, "msg %p: attr <%p> %d: Wrote %d bytes at offset +%td\n",
msg, nla, nla->nla_type, datalen,
(void *) nla - nlmsg_data(msg->nm_nlh));
}
return 0;
@ -1110,6 +1112,9 @@ unsigned long nla_get_msecs(struct nlattr *nla)
*/
int nla_put_nested(struct nl_msg *msg, int attrtype, struct nl_msg *nested)
{
NL_DBG(2, "msg %p: attr <> %d: adding msg %p as nested attribute\n",
msg, attrtype, nested);
return nla_put(msg, attrtype, nlmsg_len(nested->nm_nlh),
nlmsg_data(nested->nm_nlh));
}
@ -1129,6 +1134,9 @@ struct nlattr *nla_nest_start(struct nl_msg *msg, int attrtype)
if (nla_put(msg, attrtype, 0, NULL) < 0)
return NULL;
NL_DBG(2, "msg %p: attr <%p> %d: starting nesting\n",
msg, start, start->nla_type);
return start;
}
@ -1145,6 +1153,10 @@ int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
{
start->nla_len = (unsigned char *) nlmsg_tail(msg->nm_nlh) -
(unsigned char *) start;
NL_DBG(2, "msg %p: attr <%p> %d: closing nesting, len=%u\n",
msg, start, start->nla_type, start->nla_len);
return 0;
}

4
lib/msg.c
View File

@ -529,8 +529,8 @@ void *nlmsg_reserve(struct nl_msg *n, size_t len, int pad)
if (tlen > len)
memset(buf + len, 0, tlen - len);
NL_DBG(2, "msg %p: Reserved %zu bytes, pad=%d, nlmsg_len=%d\n",
n, len, pad, n->nm_nlh->nlmsg_len);
NL_DBG(2, "msg %p: Reserved %zu (%zu) bytes, pad=%d, nlmsg_len=%d\n",
n, tlen, len, pad, n->nm_nlh->nlmsg_len);
return buf;
}