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nfnetlink_log: do not expose NFULNL_COPY_DISABLED to user-space

PATCH Applied Pablo Neira Ayuso 2 participants 2 messages Jul 14, 2010 – Jul 15, 2010

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Pablo Neira Ayuso

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#0 lore raw

PATCH 1/1 nfnetlink_log: do not expose NFULNL_COPY_DISABLED to user-space

This patch moves NFULNL_COPY_PACKET definition from linux/netfilter/nfnetlink_log.h to net/netfilter/nfnetlink_log.h since this copy mode is only for internal use.

I have also changed the value from 0x03 to 0xff. Thus, we avoid a gap from user-space that may confuse users if we add new copy modes in the future.

This change was introduced in:
http://www.spinics.net/lists/netfilter-devel/msg13535.html

Since this change is not included in any stable Linux kernel, I think it's safe to make this change now. Anyway, this copy mode does not make any sense from user-space, so this patch should not break any existing setup.

---
 include/linux/netfilter/nfnetlink_log.h |    2 +-
 include/net/netfilter/nfnetlink_log.h   |    2 ++
 2 files changed, 3 insertions(+), 1 deletions(-)
include/linux/netfilter/nfnetlink_log.h +1 -1
index 1d0b84a..ea9b8d3 100644
@@ -89,7 +89,7 @@ enum nfulnl_attr_config {
 #define NFULNL_COPY_NONE	0x00
 #define NFULNL_COPY_META	0x01
 #define NFULNL_COPY_PACKET	0x02
-#define NFULNL_COPY_DISABLED	0x03
+/* 0xff is reserved, don't use it for new copy modes. */
 
 #define NFULNL_CFG_F_SEQ	0x0001
 #define NFULNL_CFG_F_SEQ_GLOBAL	0x0002
include/net/netfilter/nfnetlink_log.h +2 -0
index b0569ff..e2dec42 100644
@@ -10,5 +10,7 @@ nfulnl_log_packet(u_int8_t pf,
 		  const struct nf_loginfo *li_user,
 		  const char *prefix);
 
+#define NFULNL_COPY_DISABLED    0xff
+
 #endif /* _KER_NFNETLINK_LOG_H */
 
#1 lore raw

Am 14.07.2010 13:49, schrieb Pablo Neira Ayuso:

Quoted 8 lines

This patch moves NFULNL_COPY_PACKET definition from linux/netfilter/nfnetlink_log.h to net/netfilter/nfnetlink_log.h since this copy mode is only for internal use.

I have also changed the value from 0x03 to 0xff. Thus, we avoid a gap from user-space that may confuse users if we add new copy modes in the future.

Quoted 8 lines

This change was introduced in:
http://www.spinics.net/lists/netfilter-devel/msg13535.html

Since this change is not included in any stable Linux kernel, I think it's safe to make this change now. Anyway, this copy mode does not make any sense from user-space, so this patch should not break any existing setup.

Applied, thanks Pablo.