Commit fc073938 authored by Ying Xue's avatar Ying Xue Committed by David S. Miller
Browse files

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: default avatarYing Xue <ying.xue@windriver.com>
Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4225a398
......@@ -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 */
......
......@@ -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;
......
......@@ -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
......
......@@ -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 */
......
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