rename msg.c to nlmsg.c

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 0 insertions, 227 deletions

diff --git a/src/msg.c b/src/msg.c
deleted file mode 100644
index 13d9abc..0000000
--- a/src/msg.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * (C) 2008-2010 by Pablo Neira Ayuso <pablo@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <stdio.h>
-#include <ctype.h>
-#include <errno.h>
-#include <string.h>
-#include <libmnl/libmnl.h>
-
-/**
- * mnl_nlmsg_size - get size of the netlink messages (without alignment)
- * @len: length of the netlink message
- *
- * This function returns the size of a netlink message (header plus payload)
- * without alignment.
- */
-size_t mnl_nlmsg_size(int len)
-{
-	return len + MNL_ALIGN(MNL_NLMSG_HDRLEN);
-}
-
-/**
- * mnl_nlmsg_aligned_size - get size of the netlink messages (with alignment)
- * @len: length of the netlink message
- *
- * This function returns the size of a netlink message (header plus payload)
- * with alignment.
- */
-size_t mnl_nlmsg_aligned_size(int len)
-{
-	return MNL_ALIGN(mnl_nlmsg_size(len));
-}
-
-/**
- * mnl_nlmsg_payload_size - get the size of the payload
- * @nlh: pointer to the header of the netlink message
- *
- * This function returns the size of the netlink payload
- */
-size_t mnl_nlmsg_payload_size(const struct nlmsghdr *nlh)
-{
-	return nlh->nlmsg_len - MNL_NLMSG_HDRLEN;
-}
-
-/**
- * mnl_nlmsg_put_header - prepare room for Netlink header
- * @buf: memory already allocated to store the Netlink message
- *
- * This function sets to zero the room that is required to put a Netlink
- * header in the memory buffer passed as parameter. This function also
- * initializes the nlmsg_len field. This function returns a pointer to the
- * Netlink header structure.
- */
-struct nlmsghdr *mnl_nlmsg_put_header(void *buf)
-{
-	int len = MNL_ALIGN(sizeof(struct nlmsghdr));
-	struct nlmsghdr *nlh = buf;
-
-	memset(buf, 0, len);
-	nlh->nlmsg_len = len;
-	return nlh;
-}
-
-/**
- * mnl_nlmsg_put_extra_header - prepare room for an extra header
- * @nlh: pointer to Netlink header
- * @size: size of the extra header that we want to put
- *
- * This function sets to zero the room that is required to put the extra
- * header after the initial Netlink header. This function also increases
- * the nlmsg_len field. This function returns a pointer to the extra
- * header.
- */
-void *mnl_nlmsg_put_extra_header(struct nlmsghdr *nlh, int size)
-{
-	char *ptr = (char *)nlh + nlh->nlmsg_len;
-	nlh->nlmsg_len += MNL_ALIGN(size);
-	memset(ptr, 0, size);
-	return ptr;
-}
-
-/**
- * mnl_nlmsg_get_len - get the length field from the netlink message
- * @nlh: pointer to a netlink header
- *
- * This function returns the length of the netlink message by return the field
- * nlmsg_len of the message.
- */
-uint16_t mnl_nlmsg_get_len(const struct nlmsghdr *nlh)
-{
-	return nlh->nlmsg_len;
-}
-
-/**
- * mnl_nlmsg_get_data - get a pointer to the payload of the netlink message
- * @nlh: pointer to a netlink header
- *
- * This function returns a pointer to the payload of the netlink message.
- */
-void *mnl_nlmsg_get_data(const struct nlmsghdr *nlh)
-{
-	return (void *)nlh + MNL_NLMSG_HDRLEN;
-}
-
-/**
- * mnl_nlmsg_get_data_offset - get a pointer to the payload of the message
- * @nlh: pointer to a netlink header
- * @offset: offset to the payload of the attributes TLV set
- *
- * This function returns a pointer to the payload of the netlink message plus
- * a given offset.
- */
-void *mnl_nlmsg_get_data_offset(const struct nlmsghdr *nlh, int offset)
-{
-	return (void *)nlh + MNL_NLMSG_HDRLEN + MNL_ALIGN(offset);
-}
-
-/**
- * mnl_nlmsg_ok - check a there is room for netlink message
- * @nlh: netlink message that we want to check
- * @len: remaining bytes in a buffer that contains the netlink message
- *
- * This function is used to check that a buffer that contains a netlink
- * message has enough room for the netlink message that it stores, ie. this
- * function can be used to verify that a netlink message is not malformed nor
- * truncated.
- *
- * The @len parameter may become negative in malformed messages during message
- * iteration, that is why we use a signed integer.
- */
-int mnl_nlmsg_ok(const struct nlmsghdr *nlh, int len)
-{
-	return len >= (int)sizeof(struct nlmsghdr) &&
-	       nlh->nlmsg_len >= sizeof(struct nlmsghdr) &&
-	       (int)nlh->nlmsg_len <= len;
-}
-
-/**
- * mnl_nlmsg_next - get the next netlink message in a multipart message
- * @nlh: current netlink message that we are handling
- * @len: pointer to the current remaining bytes in the buffer
- *
- * This function returns a pointer to the next netlink message that is part
- * of a multi-part netlink message. Netlink can batches messages into a buffer
- * so that the receiver has to iterate over the whole set of netlink
- * messages.
- */
-struct nlmsghdr *mnl_nlmsg_next(const struct nlmsghdr *nlh, int *len)
-{
-	*len -= MNL_ALIGN(nlh->nlmsg_len);
-	return (struct nlmsghdr *)((void *)nlh + MNL_ALIGN(nlh->nlmsg_len));
-}
-
-/**
- * mnl_nlmsg_get_tail - get the ending of the netlink message
- * @nlh: pointer to netlink message
- *
- * This function returns a pointer to the netlink message tail. This is useful
- * to build a message since we continue adding attribute at the end of it.
- */
-void *mnl_nlmsg_get_tail(const struct nlmsghdr *nlh)
-{
-	return (struct nlmsghdr *)((void *)nlh + MNL_ALIGN(nlh->nlmsg_len));
-}
-
-/**
- * mnl_nlmsg_seq_ok - perform sequence tracking
- * @nlh: current netlink message that we are handling
- * @seq: last sequence number used to send a message
- *
- * This functions returns 1 if the sequence tracking is fulfilled, otherwise
- * 0 is returned. We skip the tracking for netlink messages whose sequence
- * number is zero since it is usually reserved for event-based kernel
- * notifications.
- */
-int mnl_nlmsg_seq_ok(const struct nlmsghdr *nlh, unsigned int seq)
-{
-	return nlh->nlmsg_seq ? nlh->nlmsg_seq == seq : 1;
-}
-
-/**
- * mnl_nlmsg_portid_ok - perform portID origin check
- * @nlh: current netlink message that we are handling
- * @seq: netlink portid that we want to check
- *
- * This functions return 1 if the origin is fulfilled, otherwise
- * 0 is returned.  We skip the tracking for netlink message whose portID 
- * is zero since it is reserved for event-based kernel notifications.
- */
-int mnl_nlmsg_portid_ok(const struct nlmsghdr *nlh, unsigned int portid)
-{
-	return nlh->nlmsg_pid ? nlh->nlmsg_pid == portid : 1;
-}
-
-/* XXX: rework this, please */
-void mnl_nlmsg_print(const struct nlmsghdr *nlh)
-{
-	int i;
-
-	printf("========= netlink header ==========\n");
-	printf("length(32 bits)=%.08u\n", nlh->nlmsg_len);
-	printf("type(16 bits)=%.04u flags(16 bits)=%.04x\n",
-		nlh->nlmsg_type, nlh->nlmsg_flags);
-	printf("sequence number(32 bits)=%.08x\n", nlh->nlmsg_seq);
-	printf("port ID(32 bits)=%.08u\n", nlh->nlmsg_pid);
-	printf("===================================\n");
-
-	for (i=sizeof(struct nlmsghdr); i<mnl_nlmsg_get_len(nlh); i+=4) {
-		char *b = (char *) nlh;
-
-		printf("(%.3d) %.2x %.2x %.2x %.2x | ", i,
-			0xff & b[i],	0xff & b[i+1],
-			0xff & b[i+2],	0xff & b[i+3]);
-
-		printf("%c %c %c %c\n",
-			isalnum(b[i]) ? b[i] : 0,
-			isalnum(b[i+1]) ? b[i+1] : 0,
-			isalnum(b[i+2]) ? b[i+2] : 0,
-			isalnum(b[i+3]) ? b[i+3] : 0);
-	}
-}