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Message-Id: <20190122183125.15920-20-leon@kernel.org>
Date: Tue, 22 Jan 2019 20:31:25 +0200
From: Leon Romanovsky <leon@...nel.org>
To: David Ahern <dsahern@...il.com>
Cc: Leon Romanovsky <leonro@...lanox.com>,
netdev <netdev@...r.kernel.org>,
RDMA mailing list <linux-rdma@...r.kernel.org>,
Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH iproute2-next 19/19] rdma: Provide and reuse filter functions
From: Leon Romanovsky <leonro@...lanox.com>
Globally replace all filter function in safer variants of those
is_filterred functions, which take into account the availability/lack
of netlink attributes.
Such conversion allowed to fix a number of places in the code, where
the previous implementation didn't honor filter requests if netlink
attribute wasn't present.
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
rdma/rdma.h | 7 +++---
rdma/res-cmid.c | 57 +++++++++++++++++++++++++++----------------------
rdma/res-cq.c | 22 +++++++++++--------
rdma/res-mr.c | 12 +++++++----
rdma/res-pd.c | 12 +++++++----
rdma/res-qp.c | 53 ++++++++++++++++++++++-----------------------
rdma/utils.c | 26 ++++++++++++++++++----
7 files changed, 112 insertions(+), 77 deletions(-)
diff --git a/rdma/rdma.h b/rdma/rdma.h
index e86c7f21..1022e9a2 100644
--- a/rdma/rdma.h
+++ b/rdma/rdma.h
@@ -110,9 +110,10 @@ struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index);
*/
bool rd_doit_index(struct rd *rd, uint32_t *idx);
int rd_build_filter(struct rd *rd, const struct filters valid_filters[]);
-bool rd_check_is_filtered(struct rd *rd, const char *key, uint32_t val);
-bool rd_check_is_string_filtered(struct rd *rd, const char *key, const char *val);
-bool rd_check_is_key_exist(struct rd *rd, const char *key);
+bool rd_is_filtered_attr(struct rd *rd, const char *key, uint32_t val,
+ struct nlattr *attr);
+bool rd_is_string_filtered_attr(struct rd *rd, const char *key, const char *val,
+ struct nlattr *attr);
/*
* Netlink
*/
diff --git a/rdma/res-cmid.c b/rdma/res-cmid.c
index 0b61e433..0b830088 100644
--- a/rdma/res-cmid.c
+++ b/rdma/res-cmid.c
@@ -132,57 +132,64 @@ static int res_cm_id_line(struct rd *rd, const char *name, int idx,
if (port && port != rd->port_idx)
goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN])
lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
- if (rd_check_is_filtered(rd, "lqpn", lqpn))
- goto out;
- }
- if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE]) {
+
+ if (rd_is_filtered_attr(rd, "lqpn", lqpn,
+ nla_line[RDMA_NLDEV_ATTR_RES_LQPN]))
+ goto out;
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE])
type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
- if (rd_check_is_string_filtered(rd, "qp-type",
- qp_types_to_str(type)))
- goto out;
- }
+ if (rd_is_string_filtered_attr(rd, "qp-type", qp_types_to_str(type),
+ nla_line[RDMA_NLDEV_ATTR_RES_TYPE]))
+ goto out;
ps = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PS]);
- if (rd_check_is_string_filtered(rd, "ps", cm_id_ps_to_str(ps)))
+ if (rd_is_string_filtered_attr(rd, "ps", cm_id_ps_to_str(ps),
+ nla_line[RDMA_NLDEV_ATTR_RES_PS]))
goto out;
state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
- if (rd_check_is_string_filtered(rd, "state", cm_id_state_to_str(state)))
+ if (rd_is_string_filtered_attr(rd, "state", cm_id_state_to_str(state),
+ nla_line[RDMA_NLDEV_ATTR_RES_STATE]))
goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR])
if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR],
src_addr_str, &src_port))
goto out;
- if (rd_check_is_string_filtered(rd, "src-addr", src_addr_str))
- goto out;
- if (rd_check_is_filtered(rd, "src-port", src_port))
- goto out;
- }
+ if (rd_is_string_filtered_attr(rd, "src-addr", src_addr_str,
+ nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]))
+ goto out;
+ if (rd_is_filtered_attr(rd, "src-port", src_port,
+ nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]))
+ goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR])
if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR],
dst_addr_str, &dst_port))
goto out;
- if (rd_check_is_string_filtered(rd, "dst-addr", dst_addr_str))
- goto out;
- if (rd_check_is_filtered(rd, "dst-port", dst_port))
- goto out;
- }
+ if (rd_is_string_filtered_attr(rd, "dst-addr", dst_addr_str,
+ nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]))
+ goto out;
+ if (rd_is_filtered_attr(rd, "dst-port", dst_port,
+ nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]))
+ goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
comm = get_task_name(pid);
}
- if (rd_check_is_filtered(rd, "pid", pid))
+ if (rd_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN])
cm_idn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]);
- if (rd_check_is_filtered(rd, "cm-idn", cm_idn))
+ if (rd_is_filtered_attr(rd, "cm-idn", cm_idn,
+ nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]) {
diff --git a/rdma/res-cq.c b/rdma/res-cq.c
index c14637e6..5afb97c5 100644
--- a/rdma/res-cq.c
+++ b/rdma/res-cq.c
@@ -51,32 +51,36 @@ static int res_cq_line(struct rd *rd, const char *name, int idx,
cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
- if (rd_check_is_filtered(rd, "users", users))
+ if (rd_is_filtered_attr(rd, "users", users,
+ nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
poll_ctx =
mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
- if (rd_check_is_string_filtered(rd, "poll-ctx",
- poll_ctx_to_str(poll_ctx)))
- goto out;
- }
+ if (rd_is_string_filtered_attr(rd, "poll-ctx",
+ poll_ctx_to_str(poll_ctx),
+ nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]))
+ goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
comm = get_task_name(pid);
}
- if (rd_check_is_filtered(rd, "pid", pid))
+ if (rd_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
cqn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
- if (rd_check_is_filtered(rd, "cqn", cqn))
+ if (rd_is_filtered_attr(rd, "cqn", cqn,
+ nla_line[RDMA_NLDEV_ATTR_RES_CQN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
- if (rd_check_is_filtered(rd, "ctxn", ctxn))
+ if (rd_is_filtered_attr(rd, "ctxn", ctxn,
+ nla_line[RDMA_NLDEV_ATTR_RES_CTXN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
diff --git a/rdma/res-mr.c b/rdma/res-mr.c
index d42e8d81..f4a24dc1 100644
--- a/rdma/res-mr.c
+++ b/rdma/res-mr.c
@@ -31,7 +31,8 @@ static int res_mr_line(struct rd *rd, const char *name, int idx,
iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
- if (rd_check_is_filtered(rd, "mrlen", mrlen))
+ if (rd_is_filtered_attr(rd, "mrlen", mrlen,
+ nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
@@ -39,17 +40,20 @@ static int res_mr_line(struct rd *rd, const char *name, int idx,
comm = get_task_name(pid);
}
- if (rd_check_is_filtered(rd, "pid", pid))
+ if (rd_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
mrn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
- if (rd_check_is_filtered(rd, "mrn", mrn))
+ if (rd_is_filtered_attr(rd, "mrn", mrn,
+ nla_line[RDMA_NLDEV_ATTR_RES_MRN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
- if (rd_check_is_filtered(rd, "pdn", pdn))
+ if (rd_is_filtered_attr(rd, "pdn", pdn,
+ nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
diff --git a/rdma/res-pd.c b/rdma/res-pd.c
index 956d4d9f..07c836e8 100644
--- a/rdma/res-pd.c
+++ b/rdma/res-pd.c
@@ -28,7 +28,8 @@ static int res_pd_line(struct rd *rd, const char *name, int idx,
nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY]);
users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
- if (rd_check_is_filtered(rd, "users", users))
+ if (rd_is_filtered_attr(rd, "users", users,
+ nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY])
@@ -40,18 +41,21 @@ static int res_pd_line(struct rd *rd, const char *name, int idx,
comm = get_task_name(pid);
}
- if (rd_check_is_filtered(rd, "pid", pid))
+ if (rd_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
- if (rd_check_is_filtered(rd, "ctxn", ctxn))
+ if (rd_is_filtered_attr(rd, "ctxn", ctxn,
+ nla_line[RDMA_NLDEV_ATTR_RES_CTXN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
- if (rd_check_is_filtered(rd, "pdn", pdn))
+ if (rd_is_filtered_attr(rd, "pdn", pdn,
+ nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
diff --git a/rdma/res-qp.c b/rdma/res-qp.c
index ac9976fc..954e465d 100644
--- a/rdma/res-qp.c
+++ b/rdma/res-qp.c
@@ -103,53 +103,49 @@ static int res_qp_line(struct rd *rd, const char *name, int idx,
goto out;
lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
- if (rd_check_is_filtered(rd, "lqpn", lqpn))
+ if (rd_is_filtered_attr(rd, "lqpn", lqpn,
+ nla_line[RDMA_NLDEV_ATTR_RES_LQPN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
- if (rd_check_is_filtered(rd, "pdn", pdn))
+ if (rd_is_filtered_attr(rd, "pdn", pdn,
+ nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN])
rqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQPN]);
- if (rd_check_is_filtered(rd, "rqpn", rqpn))
- goto out;
- } else {
- if (rd_check_is_key_exist(rd, "rqpn"))
- goto out;
- }
+ if (rd_is_filtered_attr(rd, "rqpn", rqpn,
+ nla_line[RDMA_NLDEV_ATTR_RES_RQPN]))
+ goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN])
rq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]);
- if (rd_check_is_filtered(rd, "rq-psn", rq_psn))
- goto out;
- } else {
- if (rd_check_is_key_exist(rd, "rq-psn"))
- goto out;
- }
+ if (rd_is_filtered_attr(rd, "rq-psn", rq_psn,
+ nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]))
+ goto out;
sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
- if (rd_check_is_filtered(rd, "sq-psn", sq_psn))
+ if (rd_is_filtered_attr(rd, "sq-psn", sq_psn,
+ nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]))
goto out;
- if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]) {
+ if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
path_mig_state = mnl_attr_get_u8(
nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]);
- if (rd_check_is_string_filtered(rd, "path-mig-state",
- path_mig_to_str(path_mig_state)))
- goto out;
- } else {
- if (rd_check_is_key_exist(rd, "path-mig-state"))
- goto out;
- }
+ if (rd_is_string_filtered_attr(
+ rd, "path-mig-state", path_mig_to_str(path_mig_state),
+ nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]))
+ goto out;
type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
- if (rd_check_is_string_filtered(rd, "type", qp_types_to_str(type)))
+ if (rd_is_string_filtered_attr(rd, "type", qp_types_to_str(type),
+ nla_line[RDMA_NLDEV_ATTR_RES_TYPE]))
goto out;
state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
- if (rd_check_is_string_filtered(rd, "state", qp_states_to_str(state)))
+ if (rd_is_string_filtered_attr(rd, "state", qp_states_to_str(state),
+ nla_line[RDMA_NLDEV_ATTR_RES_STATE]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
@@ -157,7 +153,8 @@ static int res_qp_line(struct rd *rd, const char *name, int idx,
comm = get_task_name(pid);
}
- if (rd_check_is_filtered(rd, "pid", pid))
+ if (rd_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
diff --git a/rdma/utils.c b/rdma/utils.c
index cff5297d..6bc14cd5 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -233,7 +233,7 @@ out:
return ret;
}
-bool rd_check_is_key_exist(struct rd *rd, const char *key)
+static bool rd_check_is_key_exist(struct rd *rd, const char *key)
{
struct filter_entry *fe;
@@ -249,8 +249,8 @@ bool rd_check_is_key_exist(struct rd *rd, const char *key)
* Check if string entry is filtered:
* * key doesn't exist -> user didn't request -> not filtered
*/
-bool rd_check_is_string_filtered(struct rd *rd,
- const char *key, const char *val)
+static bool rd_check_is_string_filtered(struct rd *rd, const char *key,
+ const char *val)
{
bool key_is_filtered = false;
struct filter_entry *fe;
@@ -300,7 +300,7 @@ out:
* Check if key is filtered:
* key doesn't exist -> user didn't request -> not filtered
*/
-bool rd_check_is_filtered(struct rd *rd, const char *key, uint32_t val)
+static bool rd_check_is_filtered(struct rd *rd, const char *key, uint32_t val)
{
bool key_is_filtered = false;
struct filter_entry *fe;
@@ -349,6 +349,24 @@ out:
return key_is_filtered;
}
+bool rd_is_filtered_attr(struct rd *rd, const char *key, uint32_t val,
+ struct nlattr *attr)
+{
+ if (!attr)
+ return rd_check_is_key_exist(rd, key);
+
+ return rd_check_is_filtered(rd, key, val);
+}
+
+bool rd_is_string_filtered_attr(struct rd *rd, const char *key, const char *val,
+ struct nlattr *attr)
+{
+ if (!attr)
+ rd_check_is_key_exist(rd, key);
+
+ return rd_check_is_string_filtered(rd, key, val);
+}
+
static void filters_cleanup(struct rd *rd)
{
struct filter_entry *fe, *tmp;
--
2.19.1
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