From fc0739385ba10f59105e87a46cc93d9d9a10553c Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Thu, 16 Aug 2012 12:09:08 +0000 Subject: [PATCH] tipc: remove pointless name sanity check and tipc_alphabet array There is no real reason to check whether all letters in the given media name and network interface name are within the character set defined in tipc_alphabet array. Even if we eliminate the checking, the rest of checking conditions in tipc_enable_bearer() can ensure we do not enable an invalid or illegal bearer. Signed-off-by: Ying Xue Signed-off-by: Jon Maloy Signed-off-by: Paul Gortmaker Signed-off-by: David S. Miller --- net/tipc/bearer.c | 6 ++---- net/tipc/core.c | 3 --- net/tipc/core.h | 2 -- net/tipc/link.c | 4 +--- 4 files changed, 3 insertions(+), 12 deletions(-) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 09e71241265d..6b2faa57a394 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -60,7 +60,7 @@ static int media_name_valid(const char *name) len = strlen(name); if ((len + 1) > TIPC_MAX_MEDIA_NAME) return 0; - return strspn(name, tipc_alphabet) == len; + return 1; } /** @@ -206,9 +206,7 @@ static int bearer_name_validate(const char *name, /* validate component parts of bearer name */ if ((media_len <= 1) || (media_len > TIPC_MAX_MEDIA_NAME) || - (if_len <= 1) || (if_len > TIPC_MAX_IF_NAME) || - (strspn(media_name, tipc_alphabet) != (media_len - 1)) || - (strspn(if_name, tipc_alphabet) != (if_len - 1))) + (if_len <= 1) || (if_len > TIPC_MAX_IF_NAME)) return 0; /* return bearer name components, if necessary */ diff --git a/net/tipc/core.c b/net/tipc/core.c index 6586eac6a50e..c261a5dca7c5 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -50,9 +50,6 @@ /* global variables used by multiple sub-systems within TIPC */ int tipc_random; -const char tipc_alphabet[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_."; - /* configurable TIPC parameters */ u32 tipc_own_addr; int tipc_max_ports; diff --git a/net/tipc/core.h b/net/tipc/core.h index fd42e106c185..e4e46cd2d0e6 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -85,8 +85,6 @@ extern int tipc_remote_management; * Other global variables */ extern int tipc_random; -extern const char tipc_alphabet[]; - /* * Routines available to privileged subsystems diff --git a/net/tipc/link.c b/net/tipc/link.c index 1c1e6151875e..a79c755cb417 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -210,9 +210,7 @@ static int link_name_validate(const char *name, (z_local > 255) || (c_local > 4095) || (n_local > 4095) || (z_peer > 255) || (c_peer > 4095) || (n_peer > 4095) || (if_local_len <= 1) || (if_local_len > TIPC_MAX_IF_NAME) || - (if_peer_len <= 1) || (if_peer_len > TIPC_MAX_IF_NAME) || - (strspn(if_local, tipc_alphabet) != (if_local_len - 1)) || - (strspn(if_peer, tipc_alphabet) != (if_peer_len - 1))) + (if_peer_len <= 1) || (if_peer_len > TIPC_MAX_IF_NAME)) return 0; /* return link name components, if necessary */ -- 2.30.2