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authorDavid S. Miller <davem@davemloft.net>2012-03-29 23:23:57 -0400
committerDavid S. Miller <davem@davemloft.net>2012-04-01 18:11:37 -0400
commit1e6428d82b3c61ac3bb725b64ffb634b60cbd678 (patch)
treedec716687536087ab3b69acec5212c269061d59c /net/nfc
parent028d6a6767456d6c84a72d3451f19fe7ca7b47db (diff)
nfc: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/netlink.c70
1 files changed, 41 insertions, 29 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 6404052d6c07..8937664674fa 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -63,19 +63,23 @@ static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target,
genl_dump_check_consistent(cb, hdr, &nfc_genl_family);
- NLA_PUT_U32(msg, NFC_ATTR_TARGET_INDEX, target->idx);
- NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, target->supported_protocols);
- NLA_PUT_U16(msg, NFC_ATTR_TARGET_SENS_RES, target->sens_res);
- NLA_PUT_U8(msg, NFC_ATTR_TARGET_SEL_RES, target->sel_res);
- if (target->nfcid1_len > 0)
- NLA_PUT(msg, NFC_ATTR_TARGET_NFCID1, target->nfcid1_len,
- target->nfcid1);
- if (target->sensb_res_len > 0)
- NLA_PUT(msg, NFC_ATTR_TARGET_SENSB_RES, target->sensb_res_len,
- target->sensb_res);
- if (target->sensf_res_len > 0)
- NLA_PUT(msg, NFC_ATTR_TARGET_SENSF_RES, target->sensf_res_len,
- target->sensf_res);
+ if (nla_put_u32(msg, NFC_ATTR_TARGET_INDEX, target->idx) ||
+ nla_put_u32(msg, NFC_ATTR_PROTOCOLS, target->supported_protocols) ||
+ nla_put_u16(msg, NFC_ATTR_TARGET_SENS_RES, target->sens_res) ||
+ nla_put_u8(msg, NFC_ATTR_TARGET_SEL_RES, target->sel_res))
+ goto nla_put_failure;
+ if (target->nfcid1_len > 0 &&
+ nla_put(msg, NFC_ATTR_TARGET_NFCID1, target->nfcid1_len,
+ target->nfcid1))
+ goto nla_put_failure;
+ if (target->sensb_res_len > 0 &&
+ nla_put(msg, NFC_ATTR_TARGET_SENSB_RES, target->sensb_res_len,
+ target->sensb_res))
+ goto nla_put_failure;
+ if (target->sensf_res_len > 0 &&
+ nla_put(msg, NFC_ATTR_TARGET_SENSF_RES, target->sensf_res_len,
+ target->sensf_res))
+ goto nla_put_failure;
return genlmsg_end(msg, hdr);
@@ -170,7 +174,8 @@ int nfc_genl_targets_found(struct nfc_dev *dev)
if (!hdr)
goto free_msg;
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
@@ -197,10 +202,11 @@ int nfc_genl_device_added(struct nfc_dev *dev)
if (!hdr)
goto free_msg;
- NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
- NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
- NLA_PUT_U8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up);
+ if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
+ nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
+ nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
+ nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
@@ -229,7 +235,8 @@ int nfc_genl_device_removed(struct nfc_dev *dev)
if (!hdr)
goto free_msg;
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
@@ -259,10 +266,11 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
if (cb)
genl_dump_check_consistent(cb, hdr, &nfc_genl_family);
- NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
- NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
- NLA_PUT_U8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up);
+ if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
+ nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
+ nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
+ nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up))
+ goto nla_put_failure;
return genlmsg_end(msg, hdr);
@@ -339,11 +347,14 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
if (!hdr)
goto free_msg;
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
- if (rf_mode == NFC_RF_INITIATOR)
- NLA_PUT_U32(msg, NFC_ATTR_TARGET_INDEX, target_idx);
- NLA_PUT_U8(msg, NFC_ATTR_COMM_MODE, comm_mode);
- NLA_PUT_U8(msg, NFC_ATTR_RF_MODE, rf_mode);
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
+ if (rf_mode == NFC_RF_INITIATOR &&
+ nla_put_u32(msg, NFC_ATTR_TARGET_INDEX, target_idx))
+ goto nla_put_failure;
+ if (nla_put_u8(msg, NFC_ATTR_COMM_MODE, comm_mode) ||
+ nla_put_u8(msg, NFC_ATTR_RF_MODE, rf_mode))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
@@ -376,7 +387,8 @@ int nfc_genl_dep_link_down_event(struct nfc_dev *dev)
if (!hdr)
goto free_msg;
- NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);